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Chinese Hackers Exploit ZyXEL Switch Flaw to Steal Data From Nearly 1,000 Devices

 

A Chinese threat actor has been using the recently discovered vulnerability in ZyXEL GS1900 switches to steal crucial information from the devices around the world, according to GreyNoise, a threat intelligence company.

The vulnerability, tracked as CVE-2026-7273, has a CVSS score of 8.8 and is a stack-based buffer overflow, enabling a remote unauthenticated attacker to execute OS commands via a specially crafted HTTP request. 

ZyXEL has issued security updates for ten GS1900 switch models in June. However, according to GreyNoise, the flaw was actively exploited in August, targeting the devices in 48 countries. The threat actors used a Python script, which was significantly obfuscated to hide its purpose, to extract the hashes of the root credentials, configuration, and network information from 996 affected switches. 

While the script targeted the GS1900-24 switches with firmware versions 2.10 to 2.90, some of the command-line options in the script contained values related to libc base addresses and global offsets. Therefore, it might be possible that the threat actors could use the same vulnerability to target other firmware versions. The information stolen from the switches also showed that 564 devices were using default credentials. This lets the attackers effortlessly compromise these devices. 

On Monday, the US Cybersecurity and Infrastructure Security Agency (CISA) added the vulnerability to its Known Exploited Vulnerabilities catalog. Also, per the Binding Operational Directive 26-04, all federal agencies must remediate this issue within 3 days of its publication. GreyNoise also reported that the same threat actor conducted Ubiquiti attacks, which involved exploiting the zero-day flaws to gain remote access and execute arbitrary code in the devices. 

In addition, the attackers used exploits targeting WordPress flaws to launch attacks against small businesses and government entities in July. The attacks entailed a threat actor compromising a Western government organization, stealing over 18000 sensitive documents from the agency’s backend database, and publishing the results on a Matrix communication service. 

However, the cybersecurity firm is yet to confirm if any of these attacks were conducted by the same threat actor. Acronis, another cybersecurity firm, previously identified threat actors using the Red Heron hacking group, which primarily used Gitea’s zero-day flaw to target more than 100 organizations worldwide.

US Says Chinese Hackers Hit Federal Agencies

 

The U.S. says a China-linked hacking operation broke into or targeted systems at NASA, the Federal Reserve, the Justice Department, the Senate, and other sensitive networks, then hid activity by routing traffic through a large botnet of compromised internet-connected devices. Authorities say they disrupted the operation by seizing domains tied to two hacking platforms, QScan and QTRouter. 

According to court filings cited by U.S. media, the campaign dates back to at least 2018 and extended across government agencies, hospitals, telecom firms, power companies, financial institutions, and defense contractors. The filings also list the Department of Energy, the Department of Health and Human Services, and the National Institutes of Health among the victims or targets.

Investigators say the group behind the activity was identified as QTFY, which was allegedly employed by the China-based Nanjing Xinjiuwei Network Technology Company. The DOJ says QTFY created and operated the two platforms to help customers infiltrate networks and cover their tracks. Reports say the services functioned as a paid hacking model, with QScan and QTRouter scanning for vulnerable devices, infecting them, and turning them into proxy nodes. 

The technical method was especially concerning because it relied on IoT devices that were easier to compromise than hardened corporate systems. By spreading traffic through those devices, the attackers could make malicious connections look ordinary and make attribution more difficult. U.S. officials said that tactic allowed the hackers to quietly reach into sensitive networks while reducing the chance of immediate detection. 

The case also shows how cyber operations can blend state interests, commercial tooling, and infrastructure abuse into one long-running campaign. Officials described the seizure as part of a wider push to disrupt Chinese-linked hacking against U.S. government systems and critical infrastructure. For security teams, the key lesson is that even well-defended institutions can be exposed when attackers use botnets, proxy layers, and broad scanning to find weak entry points.

39 Child Tracking Brands Linked to One Chinese Server, Exposing 45 Security Vulnerabilities

 

GPS trackers for children may put the tracked individuals and the people tracking them in danger, according to an investigation presented at the Black Hat security conference. Vangelis Stykas, CTO of Kumio, and Felipe Solferini, principal AI security engineer, discovered that 39 different consumer brands of parental monitoring devices share the same server in China where the data stored on them are processed. 

The researchers named the producers of the technologies, which the mentioned companies used in their devices, SeTracker, SinoTrack and TKStar. They found 45 different vulnerabilities that could allow unauthorized access to children’s smart devices enabling eavesdropping, video surveillance, and total remote control of the system where valuable information is stored. The researchers stated that to perform all these actions, a hacker would need only a free account on any of these platforms. 

The scientists also found that parental monitoring devices of different brands did not have the necessary authorization restrictions, which allowed accessing their systems freely. These devices could collect and store much more personal information than monitoring their location. Some of them have the functionality to record the screen, as well as control the camera and microphone. Thus, the location of the tracked device, photographs and video, the child’s screen, the applications and websites he visits, and his personal information can be known to unauthorized people. 

At the beginning of the demonstration, the researchers showed how they managed to run a script on a children’s smartwatch, which, among other things, dialed a phone number and transmitted an audio signal without any notification on the displayed screen that the call had begun. The scientists emphasized that the experiment was carried out ethically, and they used devices provided to them for the investigation. Stykas and Solferini also discovered that attacks on the system could have been made two years before the investigation began. 

This indicates that, in principle, someone could have been able to track the child’s location and personal data without his knowledge. The researchers contacted the companies more than 30 times, but received no response. One unknown dealer, however, responded to the scientists, noting that he was helping them investigate and would forward the information to the manufacturer. Researchers have concluded that parental monitoring devices pose a serious danger to privacy and safety by possessing many vulnerabilities. 

The investigation demonstrated that the same server is used for different brands, and the lack of protection allows hackers to gain full control of the system and track all the child’s activities. The report also suggests giving up these devices, and for those parents who want to control their children’s devices, the scientists recommended using the built-in tools of the giants: Apple Screen Time, Google Family Link, and Microsoft Family Safety.

Chinese Cyber Threats to Europe Growing Through Silent Espionage Tactics

 

Chinese state-supported hacking groups are becoming one of the most serious cybersecurity concerns for the European Union, with experts cautioning that their activities often go unnoticed due to their discreet nature.

Unlike the highly visible cyberattacks commonly associated with Russia, Chinese-linked operations usually focus on quietly gaining long-term access to systems and collecting intelligence over extended periods.

According to Antonia Hmaidi, a senior analyst at the Mercator Institute for China Studies, one of the major risks involves cyber actors targeting small office devices used across Europe. These include routers, printers, and network equipment that frequently lack strong security protections, making them easier to exploit as entry points into larger systems.

“It’s not like Russian attacks, which are very visible. Therefore, we tend to underestimate it,” Hmaidi said.

Concerns over cyberespionage continue to rise

European authorities have increasingly expressed concerns over cyberespionage activities allegedly linked to China, especially as more incidents involving government agencies and private businesses continue to surface.

Rather than disrupting systems immediately, these cyber campaigns are often aimed at gathering confidential information and monitoring sensitive activity over time.

In response to growing security risks, several European institutions have tightened cybersecurity precautions. Earlier this year, members of the European Parliament travelling to China were reportedly advised to use burner phones and avoid carrying personal electronic devices.

Officials stated that the measures were introduced to minimise the possibility of surveillance or cyber intrusion during overseas visits. Lawmakers and staff members were also provided with security guidance and training before departure.

Similar safety protocols have been adopted by other EU institutions as well. Reports suggest that internal guidelines within the Council of the European Union recommend officials avoid carrying electronic devices to certain countries, including China. If devices must be taken, authorities reportedly advise wiping them completely after returning.

At the same time, staff members of the European Commission travelling abroad have reportedly been issued temporary phones and basic laptops to reduce the risk of espionage.

A stealth-driven cyber strategy

Cybersecurity experts believe Chinese cyber operations differ significantly from more aggressive attacks because they prioritise stealth, persistence, and long-term infiltration.

Instead of causing immediate and visible disruption, attackers quietly enter systems, observe operations, and gradually extract valuable information. This strategy makes detection far more difficult and allows intruders to remain active within networks for long periods without being discovered.

As Europe becomes increasingly dependent on digital infrastructure for governance, business, and communication, analysts warn that failing to recognise these hidden cyber risks could pose serious challenges to the region’s long-term security and technological independence.

Palo Alto Softens China Hack Attribution Over Beijing Retaliation Fears

 

Palo Alto Networks is facing scrutiny after reports that it deliberately softened public attribution of a vast cyberespionage campaign that its researchers internally linked to China. According to people familiar with the matter, a draft from its Unit 42 threat intelligence team tied the prolific hacking group, dubbed “TGR-STA-1030,” directly to Beijing, but the final report described it only as a “state-aligned group that operates out of Asia.” The change has reignited debate over how commercial cybersecurity firms navigate geopolitical pressure while disclosing state-backed hacking operations. 

The underlying campaign, branded “The Shadow Campaigns,” involved years-long reconnaissance and intrusions spanning nearly every country, compromising government and critical infrastructure targets in at least 37 nations. Investigators noted telltale clues suggesting a Chinese nexus, including activity patterns aligned with the GMT+8 time zone and tasking that appeared to track diplomatic flashpoints involving Beijing, such as a focus on Czech government systems after a presidential meeting with the Dalai Lama. The operators also reportedly targeted Thailand shortly before a high‑profile state visit by the Thai king to China, hinting at classic intelligence collection around sensitive diplomatic events. 

According to sources cited in the report, Palo Alto executives ordered the language to be watered down after China moved to ban software from about 15 U.S. and Israeli cybersecurity vendors, including Palo Alto, on national security grounds. Leadership allegedly worried that an explicit attribution to China could trigger further retaliation, potentially putting staff in the country at risk and jeopardizing business with Chinese or China‑exposed customers worldwide. The episode illustrates the mounting commercial and personal-security stakes facing global security vendors that operate in markets where they may also be calling out state-backed hacking. 

The researchers who reviewed Unit 42’s technical findings say they have observed similar tradecraft and infrastructure in activity they already attribute to Chinese state-sponsored espionage. U.S. officials and independent analysts have for years warned of increasingly aggressive Chinese cyber operations aimed at burrowing into critical infrastructure and sensitive government networks, a trend they see reflected in the Shadow Campaigns’ breadth and persistence. While Beijing consistently denies involvement in hacking, the indicators described by Palo Alto and others fit a pattern Western intelligence agencies have been tracking across multiple high‑impact intrusions. 

China’s embassy in Washington responded by reiterating that Beijing opposes “all forms of cyberattacks” and arguing that attribution is a complex technical issue that should rest on “sufficient evidence rather than unfounded speculation and accusations.” The controversy around Palo Alto’s edited report now sits at the intersection of that diplomatic line and the realities of commercial risk in authoritarian markets. For the wider cybersecurity industry, it underscores a hardening dilemma: how to speak plainly about state-backed intrusions while safeguarding employees, customers, and revenue in the very countries whose hackers they may be exposing.

Knownsec Data Leak Exposes Deep Cyber Links and Global Targeting Operations

 

A recent leak involving Chinese cybersecurity company Knownsec has uncovered more than 12,000 internal documents, offering an unusually detailed picture of how deeply a private firm can be intertwined with state-linked cyber activities. The incident has raised widespread concern among researchers, as the exposed files reportedly include information on internal artificial intelligence tools, sophisticated cyber capabilities, and extensive international targeting efforts. Although the materials were quickly removed after surfacing briefly on GitHub, they have already circulated across the global security community, enabling analysts to examine the scale and structure of the operations. 

The leaked data appears to illustrate connections between Knownsec and several government-aligned entities, giving researchers insight into China’s broader cyber ecosystem. According to those reviewing the documents, the files map out international targets across more than twenty countries and regions, including India, Japan, Vietnam, Indonesia, Nigeria, and the United Kingdom. Of particular concern are spreadsheets that allegedly outline attacks on around 80 foreign organizations, including critical infrastructure providers and major telecommunications companies. These insights suggest activity far more coordinated than previously understood, highlighting the growing sophistication of state-associated cyber programs. 

Among the most significant revelations is the volume of foreign data reportedly linked to prior breaches. Files attributed to the leaks include approximately 95GB of immigration information from India, 3TB of call logs taken from South Korea’s LG U Plus, and nearly 459GB of transportation records from Taiwan. Researchers also identified multiple Remote Access Trojans capable of infiltrating Windows, Linux, macOS, iOS, and Android systems. Android-based malware found in the leaked content reportedly has functionality allowing data extraction from widely used Chinese messaging applications and Telegram, further emphasizing the operational depth of the tools. 

The documents also reference hardware-based hacking devices, including a malicious power bank engineered to clandestinely upload data into a victim’s system once connected. Such devices demonstrate that offensive cyber operations may extend beyond software to include physical infiltration tools designed for discreet, targeted attacks. Security analysts reviewing the information suggest that these capabilities indicate a more expansive and organized program than earlier assessments had captured. 

Beijing has denied awareness of any breach involving Knownsec. A Foreign Ministry spokesperson reiterated that China opposes malicious cyber activities and enforces relevant laws, though the official statement did not directly address the alleged connections between the state and companies involved in intelligence-oriented work. While the government’s response distances itself from the incident, analysts note that the leaked documents will likely renew debates about the role of private firms in national cyber strategies. 

Experts warn that traditional cybersecurity measures—including antivirus software and firewall defenses—are insufficient against the type of advanced tools referenced in the leak. Instead, organizations are encouraged to adopt more comprehensive protection strategies, such as real-time monitoring systems, strict network segmentation, and the responsible integration of AI-driven threat detection. 

The Knownsec incident underscores that as adversaries continue to refine their methods, defensive systems must evolve accordingly to prevent large-scale breaches and safeguard sensitive data.

Taiwanese Web Hosting Infrastructure Hit by UAT-7237

 

A recent report from Cisco Talos exposes a cyber intrusion by a suspected Chinese-government-backed hacking collective, tracked as UAT-7237, into a Taiwanese web hosting provider. The attackers aimed to steal credentials and implant backdoors, enabling persistent and covert access to sensitive infrastructure.

The outfit has been active at least since 2022, based on forensic analysis of a remote server hosting SoftEther VPN—a favored tool for maintaining their foothold. The chosen VPN's configuration indicated a preference for Simplified Chinese, hinting at the attackers' origins. 

Talos researchers believe UAT-7237 is a subgroup of the broader Chinese APT UAT-5918, which is notorious for targeting Taiwan's critical infrastructure and overlapping with other Chinese cyber gangs like Volt Typhoon and Flax Typhoon. Despite similarities, Talos distinguishes UAT-7237 by its unique operational tools and strategies. 

UAT-7237 predominantly deploys Cobalt Strike as its main backdoor implant, while UAT-5918 leans on Meterpreter-based reverse shells and a greater number of web shells for remote access. UAT-7237, in contrast, uses a selective approach, deploying fewer web shells and leveraging direct remote desktop protocol (RDP) access and SoftEther VPN clients. 

The report highlights that UAT-7237 exploits unpatched vulnerabilities on internet-facing servers for initial access. Once inside, the crew conducts quiet reconnaissance, seeking out valuable assets and setting up prolonged access. Their toolset blends custom and open-source software; notably, the SoundBill shellcode loader (based on VTHello, featuring decoy files from Chinese IM software QQ) is used for malware deployment. 

For privilege escalation, UAT-7237 employs JuicyPotato, a tool favored by Chinese-speaking hackers, while credential stealing is achieved through multiple methods—Mimikatz for extracting credentials, registry and disk searches, and further exploitation with BAT files. The ssp_dump_lsass project, found on GitHub, is also used to dump LSASS memory and steal credentials.

Network scanning is performed using FScan, allowing the group to map open ports on IP subnets and gather information about SMB services on target endpoints. Attackers then use stolen credentials to pivot laterally within the victim’s network, seeking further targets of interest. 

Although Talos has not revealed the full scope of UAT-7237’s campaign or disclosed the vulnerabilities exploited, the findings underscore the importance of patching exposed systems and maintaining vigilant security practices. The published indicators of compromise serve as practical tools for organizations facing similar threats.

Chinese Hacker Group Salt Typhoon Breaches U.S. National Guard Network for Nine Months

 

An elite Chinese cyber-espionage group known as Salt Typhoon infiltrated a U.S. state’s Army National Guard network for nearly nine months, according to a classified Pentagon report revealed in a June Department of Homeland Security (DHS) memo. The memo, obtained by the nonprofit Property of the People through a freedom of information request, indicates the hackers had deep access between March and December 2024, raising alarms about compromised military or law enforcement data. 

Salt Typhoon has previously been linked to some of the most expansive cyber-intrusions into American infrastructure. This latest revelation suggests their reach was even broader than earlier believed. Authorities are still investigating the full extent of data accessed, including sensitive internal documents, personal information of service members, and network architecture diagrams. The affected state’s identity remains undisclosed. 

The Department of Defense declined to comment on the matter, while a spokesperson from the National Guard Bureau confirmed the breach but assured that the incident did not hinder any ongoing state or federal missions. Investigations are ongoing to determine the scope and potential long-term impact of the breach. 

China’s embassy in Washington did not directly deny the allegations but claimed the U.S. had not provided concrete evidence linking Salt Typhoon to the Chinese government. They reiterated that cyberattacks are a global threat and that China also faces similar risks. 

Salt Typhoon is particularly notorious for its ability to infiltrate and pivot across different networks. In a prior campaign, the group was linked to breaches at major telecom companies, including AT&T and Verizon, where hackers allegedly monitored text messages and calls tied to U.S. political figures, including both Trump and Harris campaigns and Senate Majority Leader Chuck Schumer’s office.

The hybrid structure of the National Guard — functioning under both federal and state authority — may have provided a wider attack surface. According to the DHS memo, the group may have obtained intelligence that could be used to compromise other states’ National Guard units and their local cybersecurity partners. Fourteen state National Guard units reportedly share intelligence with local fusion centers, potentially magnifying the risk. 

In January 2025, the U.S. Treasury Department sanctioned a company in Sichuan believed to be facilitating Salt Typhoon operations for China’s Ministry of State Security. Past incidents have shown that Salt Typhoon can maintain access for years, making complete removal and defense particularly challenging.

Chinese Attackers Suspected of Breaching a Prominent DC Law Firm

 

The next front in the silent war, which is being waged with keystrokes and algorithms rather than missiles, is the digital infrastructure of a prominent legal firm in Washington, DC. 

Wiley Rein, a company known for negotiating the complex webs of power and commerce, has notified clients that suspected Chinese state-sponsored hackers have compromised its email accounts. This intrusion demonstrates Beijing's unrelenting pursuit of intelligence in a world that is becoming more and more divided. 

A sophisticated operation is depicted in the Wiley Rein memo that CNN reviewed, indicating that the perpetrators are a group “affiliated with the Chinese government” who have a known appetite for information about trade, Taiwan, and the very US government agencies that set tariffs and examine foreign investments. Such information is invaluable in the high-stakes game of international affairs, particularly in light of the Trump administration's intensifying trade conflict with China. At the centre of this digital espionage is Wiley Rein. 

Describing itself as "wired into Washington" and a provider of "unmatched insights into the evolving priorities of agencies, regulators, and lawmakers," serves as a critical channel for Fortune 500 companies dealing with the complexities of US-China trade relations. Its attorneys are on the front lines, advising clients on how to navigate the storm of unprecedented tariffs imposed on Chinese goods. 

Gaining access to their communications entails looking directly into the tactics, vulnerabilities, and intentions of American enterprise and, by extension, elements of the US government. It is a direct assault on the intelligence that underpins economic and strategic decisions. 


The firm has admitted the breach, stating that it is currently investigating the full extent of the breach and has contacted law enforcement, working closely with the FBI. Mandiant, a Google-owned security firm, is reportedly handling the remediation, indicating the specialised expertise required to overcome such advanced persistent threats. 

However, the act of detection often lags significantly behind the initial breach, leaving uncertainty about what critical insights may have already been syphoned away.

Chinese Hackers Exploit IPv6 Network Features to Hack Software Updates

Chinese Hackers Exploit IPv6 Network Features to Hack Software Updates

China-linked group attacks

ESET discovered both SpellBinder and WizardNet, tools used by Chinese hackers. A China-based APT group, “The Wizards,” has been linked to a lateral movement tool, Spellbinder, which allows adversary-in-the-middle (AitM) attacks.  It does so via IPv6 stateless address autoconfiguration (SLAAC) spoofing, to roam laterally in the compromised network, blocking packets and redirecting the traffic of legal Chinese software to download malicious updates from a server controlled by threat actors, ESET researchers said to The Hacker News. 

About malware WizardNet

The attack creates a path for a malicious downloader which is delivered by hacking the software update mechanism linked with Sogou Pinyin. Later, the downloader imitates a conduit to deploy a modular backdoor called WizardNet. 

In the past, Chinese hackers have abused Sogou Pinyin’s software update process to install malware. Last year, ESET reported a hacking group called Blackwood that delivered an implant called NSPX30 by abusing the update process of the Chinese input method software app. 

This year, the Slovak cybersecurity company found another threat actor called PlushDaemon that exploited the same process to deploy a custom downloader called LittleDaemon. 

The scale of the attack

The Wizards APT has targeted both individuals and the gambling industry in Hong Kong, Mainland China, Cambodia, the United Arab Emirates, and the Phillippines. 

Findings highlight that the Spellbinder IPv6 AitM tool has been active since 2022. A successful attack is followed by the delivery of a ZIP archive which includes four separate files. 

After this, the threat actors install “wincap.exe” and perform "AVGApplicationFrameHost.exe," to sideload the DLL. The DLL file then reads shellcode from “log.dat” and runs it in memory, resulting in the launch of Spellbinder. 

Not the first time

In a 2024 attack incident, the hackers utilized this technique to hack the software update process for Tencent QQ at the DNS level to help a trojanized version deploy WizardNet; a modular backdoor that can receive and run .NET payloads on the victim host. Spellbinder does this by blocking the DNS query for the software update domain ("update.browser.qq[.]com") and releasing a DNS response 

“The list of targeted domains belongs to several popular Chinese platforms, such as Tencent, Baidu, Xunlei, Youku, iQIYI, Kingsoft, Mango TV, Funshion, Yuodao, Xiaomi and Xioami's Miui, PPLive, Meitu, Quihoo 360, and Baofeng,” reports The Hacker News. 

Chinese Ghost Hackers Focus on Profits, Attack Key Sectors in the US and UK


 

In the world of cybercrime, criminals usually fall into two groups. Some target individuals, tricking them for money. Others go after important organizations like hospitals and companies, hoping for bigger payouts. Although attacks on healthcare are less common, they cause major harm when they happen. Incidents like the New York Blood Center hack, where hackers stole a million patient records, show how serious the risk is. Now, a new report warns about Chinese cybercriminals, known as Ghost, who are attacking government offices, power companies, banks, factories, and hospitals. Most of their attacks have affected North America and the United Kingdom.


Ghost Hackers Active in Over 70 Countries

According to research shared by Rebecca Harpur from Blackfog, the Ghost hacking group is based in China and acts on its own without links to the government. Their main goal is to make money, not to steal secrets. Over time, this group has changed its identity multiple times, previously using names like Cring, Crypt3r, Hello, and Phantom. By rebranding, they make it harder for law enforcement agencies to track them as one single group.

Despite their tricks, agencies like the FBI and the Cybersecurity and Infrastructure Security Agency (CISA) have raised alarms about the damage Ghost can cause. The Blackfog report explains that victims usually receive a message demanding money, threatening to either destroy stolen information or release it publicly if they refuse to pay.


How Ghost Carries Out Its Attacks

The way Ghost hackers break into systems usually follows the same pattern:

• They first find and exploit weaknesses in systems that are open to the internet, such as VPN devices, websites, and email servers.

• After getting inside, they install secret programs like Cobalt Strike and web shells to stay hidden. They often create fake accounts and disable security software once they have high-level access.

• With these privileges, they move across the network quietly and transfer sensitive data to their own servers.

• Once enough data is stolen, they release ransomware programs (often named Ghost.exe or Cring.exe) across the network. This encrypts files, destroys backup copies, and leaves a ransom note demanding payment.


Tips to Stay Protected

Although the FBI has provided detailed steps to defend against these attacks, Blackfog suggests a few important actions:

1. Keep backups of all important data and store them separately from your main network.

2. Always install the latest updates for your operating systems, applications, and firmware.

3. Use multi-factor authentication to add an extra layer of security to user accounts.

4. Divide your network into smaller parts to make it harder for hackers to move around freely if they break in.


The Ghost hacking group is not interested in spying — their focus is on making money. Organizations need to stay alert, strengthen their defenses, and act fast to prevent serious damage from these ongoing threats.






Chinese Hackers Exploit SSH Daemon to Maintain Persistent Access in Cyber-Espionage Operations

 

A sophisticated cyber-espionage campaign attributed to the Chinese hacking group Evasive Panda, also known as DaggerFly, has been uncovered, targeting network appliances through a newly identified attack suite. According to cybersecurity researchers at Fortinet’s FortiGuard Labs, the attackers are leveraging a malicious toolkit named ELF/Sshdinjector.A!tr, injecting malware into the SSH daemon (SSHD) to establish long-term access and execute covert operations. 

Active since at least mid-November 2024, this attack method enables unauthorized control over compromised systems. While the initial entry point remains unclear, once infiltrated, a dropper module determines whether the device is already infected and assesses its privilege level. If running under root permissions, the malware deploys multiple binaries, including libssdh.so, which serves as the primary backdoor responsible for command-and-control (C2) communication and data exfiltration. 

Additional components such as “mainpasteheader” and “selfrecoverheader” are used to maintain persistence. The injected SSH library covertly monitors and executes commands received from a remote C2 server, allowing the attackers to conduct system reconnaissance, steal credentials, manipulate files, and execute arbitrary commands. 

The malware supports fifteen different functions, ranging from collecting system details and listing active processes to reading sensitive user data and gaining remote shell access. It can also upload and download files, delete specific records, rename files, and notify the attacker when the malware is active. 

Despite previous detections of similar threats, FortiGuard’s research is the first to provide a detailed analysis of how ELF/Sshdinjector.A!tr operates. The group behind this attack, Evasive Panda, has been active since 2012 and has previously conducted cyber-espionage campaigns, including supply chain attacks via ISPs in Asia and targeted intelligence collection from U.S. organizations. 

The group was also recently linked to deploying a novel macOS backdoor. Notably, Fortinet researchers leveraged AI-assisted tools to aid in the malware’s reverse engineering process. While challenges such as hallucinations, extrapolation errors, and omissions were encountered, the experiment demonstrated AI’s growing potential in cybersecurity research. 

Fortinet assures that its customers are already protected against this threat through its FortiGuard AntiVirus service, which detects the malware as ELF/Sshdinjector.A!tr and Linux/Agent.ACQ!tr. The company has also provided hashes of identified samples on VirusTotal for further investigation by the security community.

FBI Hacks 4,200 Computers to Remove PlugX Malware Linked to Chinese Hackers

 

The FBI has successfully hacked and removed PlugX malware from approximately 4,200 computers across the US in a large-scale cybersecurity operation. The malware, allegedly deployed by the China-based hacking group known as “Mustang Panda” or “Twill Typhoon,” has been used since at least 2012 to steal sensitive information from victims in the US, Asia, and Europe. 

The Department of Justice announced the takedown on Tuesday, highlighting the collaborative efforts with French law enforcement to mitigate the cyber threat and prevent further damage. PlugX malware, which infects Windows computers via USB ports, allows hackers to gain unauthorized access and remotely execute commands on compromised systems. The malware operates stealthily in the background, enabling cybercriminals to exfiltrate data, monitor activity, and take control of infected machines. 

According to the FBI, compromised computers establish a connection with a command-and-control server operated by the attackers, with the malware’s IP address embedded directly into the code. Since September 2023, at least 45,000 US-based IP addresses have communicated with the server, indicating the widespread reach of the cyberattack. To eliminate the malware, the FBI leveraged the same exploit used by the attackers. After gaining access to the command-and-control infrastructure, agents retrieved the IP addresses of affected devices and issued a native command that instructed PlugX to delete itself from compromised systems. 

This command removed all files created by the malware, stopped its operation, and ensured its permanent deletion from the infected machines. The successful execution of this operation marks a significant step in neutralizing the ongoing cyber threat posed by Mustang Panda. This coordinated effort was not the first time the FBI has intervened remotely to remove malicious software from infected systems. 

In 2023, the agency dismantled a network of Quakbot-infected computers by deploying an uninstallation tool to affected devices, effectively neutralizing the botnet. Similarly, in 2021, the FBI took proactive measures to counter the Hafnium hack, which targeted Microsoft Exchange servers, by remotely patching vulnerabilities and securing affected systems. These operations demonstrate the FBI’s evolving approach to addressing cyber threats through direct intervention and international cooperation. 

Despite these successful operations, cybersecurity experts warn that PlugX and similar malware strains continue to pose a significant risk, especially given their ability to spread through USB devices. Organizations and individuals are advised to remain vigilant by implementing strong cybersecurity practices such as regularly updating software, disabling USB autorun features, and using endpoint protection tools to detect and prevent unauthorized access. 

The FBI’s decisive action highlights the persistent threat posed by state-sponsored hacking groups and underscores the importance of international collaboration in combating cybercrime. Moving forward, law enforcement agencies are expected to adopt more aggressive measures to counter cyber threats and protect sensitive information from being exploited by malicious actors.

Japan Attributes Ongoing Cyberattacks to China-Linked MirrorFace Group

 


Japan's National Police Agency (NPA) and the National Centre of Incident Readiness and Strategy for Cybersecurity (NISC) have officially attributed a prolonged cyberattack campaign targeting Japanese organizations and individuals since 2019 to the China-linked threat actor MirrorFace, also known as Earth Kasha.

The cyberattacks were designed to steal sensitive information related to Japan's national security and emerging technologies. MirrorFace is reportedly a subgroup of the Chinese state-sponsored hacking collective APT10, notorious for deploying malware tools such as ANEL, LODEINFO, and NOOPDOOR.

Authorities have identified three distinct phases in MirrorFace's attack operations:
  • December 2019 – July 2023: Spear-phishing emails carrying malware like LODEINFO, LilimRAT, and NOOPDOOR targeted government agencies, think tanks, politicians, and media outlets.
  • February – October 2023: Malware such as Cobalt Strike Beacon, LODEINFO, and NOOPDOOR was deployed through vulnerabilities in network devices to infiltrate sectors like semiconductors, aerospace, and academic institutions.
  • June 2024 – Present: Phishing emails loaded with ANEL malware were sent to think tanks, political figures, and media organizations.

Sophisticated Cyberattack Techniques

MirrorFace utilized advanced methods to evade detection and maintain persistence, including:
  • Windows Sandbox Deployment: Malware was executed within the Windows Sandbox, a virtualized environment that limits malware persistence by erasing data upon system reset.
  • Evasion of Security Tools: This technique allowed malware to operate undetected by antivirus software.

Scale and Impact of the Cyberattacks

The NPA has connected MirrorFace to over 200 cyber incidents spanning five years. The affected sectors include:
  • Government Agencies
  • Defense Organizations
  • Space Research Centers
  • Private Enterprises in Advanced Technologies

Phishing emails often used compelling subjects like "Japan-US alliance" and "Taiwan Strait" to deceive recipients into downloading malicious attachments. Notable attacks linked to similar tactics include:
  • Japan Aerospace Exploration Agency (JAXA): Targeted in a sophisticated cyberattack.
  • Port of Nagoya (2023): Disrupted by a ransomware incident.

In response to these threats, the NPA issued a public warning:

“This alert aims to raise awareness among targeted organizations, businesses, and individuals about the threats they face in cyberspace by publicly disclosing the methods used in the cyber-attacks by ‘MirrorFace.’ It also seeks to encourage the implementation of appropriate security measures to prevent the expansion of damage from cyber-attacks and to avert potential harm.”

The warning underscores the need for heightened cybersecurity practices across sectors to mitigate risks from increasingly sophisticated cyber threats.

Chinese Hackers Target U.S. Treasury Sanctions Office

 


A major cybersecurity breach has been reported against the U.S. Treasury Department, specifically its Office of Foreign Assets Control (OFAC). OFAC, which oversees trade and economic sanctions, was accessed by Chinese state-backed hackers in what officials have described as a "major incident."  

How the Attack Happened

The breach was through a vulnerability in BeyondTrust, a remote support software used by the Treasury. Hackers exploited this platform to gain unauthorized access to sensitive government systems. OFAC was their primary focus, likely because of its role in managing sanctions against foreign entities, including Chinese individuals and organizations.

OFAC was originally created in 1950 in the Korean War to block assets from China and North Korea. Today, it remains a very central part of U.S. sanctions enforcement. This makes OFAC a high-value target for espionage. 

Impact of the Breach

According to the reports, in addition to OFAC, the hackers accessed the Treasury's Office of Financial Research. Officials have so far confirmed that the compromised systems have been secured, and the hackers do not have access any longer. The extent of data stolen or misused is yet to be determined.  

The same hacking crew, which identified itself as the "Salt Typhoon," also has been identified with earlier incidents of hacking other major U.S. telecom firms, including Verizon and AT&T, whose breaches enabled illicit access to customers' communications-affecting contents such as sent text messages or calls, among others-as well as wiretaps conducted by police.

Salt Typhoon is not limited to the United States, as there have been reports of similar breaches in telecommunications networks of several countries. This has shown weaknesses in crucial communication infrastructure. 

In response to these incursions, U.S. officials have called for more stringent cybersecurity measures. CISA has suggested using encrypted messaging apps such as Signal to secure communications. Moreover, lawmakers are thinking of banning China Telecom's remaining operations in the U.S.

Senator Ron Wyden also introduced new legislation to ensure the US telecom system's security. All these steps are taken to avoid such breaches in the future and to prevent the sensitive data pertaining to the government and private institutions, which would have been accessed by the state-funded cyberattacks. This was a highly sophisticated cyber-espionage campaign, thus proving the explicit necessity for security measures.



Salt Typhoon Hack: A Grave Threat to U.S. Telecommunications

 


The Chinese state-sponsored hacking group Salt Typhoon has been implicated in one of the most severe breaches in U.S. telecommunications history. Sensitive information, including call logs, timestamps, phone numbers, and location data, was compromised across the networks of at least eight major telecom carriers, including AT&T and Verizon. Despite the scale of the intrusion, many affected consumers remain uninformed about the breach.

Scope and Impact of the Breach

According to reports, Salt Typhoon’s hacking campaign has targeted high-value intelligence figures, including presidential candidates Donald Trump and Kamala Harris, as well as Senator Chuck Schumer's office. The FBI estimates that millions of users’ metadata, particularly in the Washington, D.C., area, were accessed. Yet, most affected individuals have not been notified, raising serious privacy concerns.

AT&T and Verizon, the most severely impacted companies, have faced backlash for their limited response to the breach. Privacy groups have criticized the telecom giants for failing to comply with the Federal Communications Commission (FCC) mandate requiring companies to inform customers of breaches that could cause significant harm, such as identity theft or financial loss.

Telecom Industry’s Response

While high-value targets were promptly alerted, the majority of users whose data was compromised were not informed. In an interview with NBC, Alan Butler, executive director of the Electronic Privacy Information Center, condemned the carriers’ "deficient practices." He emphasized the need for transparency, urging companies to notify all affected customers, regardless of whether their metadata or the actual content of their communications was accessed.

Charter Communications, a midsize internet service provider, has taken a relatively open approach, acknowledging infiltration by Salt Typhoon. According to Chief Security Officer Jeff Simon, access by the hackers has since been cut off, and no customer information was reportedly accessed. In contrast, other companies like Lumen, another internet service provider, have downplayed or refused to disclose the extent of the breach.

Ongoing Threats and Legislative Action

Cybersecurity experts warn that Salt Typhoon continues to target U.S. telecom networks and IT infrastructure. Government agencies are closely monitoring the situation to mitigate further risks. Lawmakers are now considering stricter cybersecurity regulations to compel telecom companies to adopt robust practices and provide detailed breach notifications to consumers.

However, some companies targeted by Salt Typhoon claim the hackers did not gain substantial information. For example, Lumen stated that federal partners found no evidence of ongoing activity in its networks.

Consumer Awareness and Future Outlook

While telecom companies have yet to adequately address these breaches, consumers must stay informed about security risks by following news updates on data breaches. Public pressure is likely to drive industry-wide changes, prompting carriers like AT&T and Verizon to adopt comprehensive notification systems for all affected users.

The Salt Typhoon breach serves as a wake-up call for the telecommunications industry to prioritize data security. Enhanced transparency, stricter cybersecurity regulations, and informed decision-making will be crucial to safeguarding sensitive information in an increasingly digital world.

CISA Issues Mobile Security Guidelines Amid Cyber Espionage Threats

 


The US Cybersecurity and Infrastructure Security Agency (CISA) released a comprehensive guide on Wednesday to help individuals in highly targeted positions protect their mobile communications from malicious actors. This move follows a series of sophisticated telecom hacks that impacted major US wireless carriers, including Verizon, AT&T, Lumen Technologies, and T-Mobile. The attacks were linked to Salt Typhoon, a China-backed cyber espionage group.

Earlier this month, the US government emphasized strengthening communications infrastructure security, with specific focus on risks tied to Cisco devices, a prime target for state-sponsored hackers. In line with this, CISA unveiled its Mobile Communications Best Practice guide, aimed at mitigating risks posed by foreign threat actors, especially Chinese cyber espionage groups.

Who Needs This Guide?

CISA’s guidelines are tailored for individuals in senior government and political roles, who are more likely to possess information of interest to sophisticated threat actors. The agency warned, “Highly targeted individuals should assume that all communications between mobile devices—including government and personal devices—and internet services are at risk of interception or manipulation.”

Key Recommendations

  • Use Encrypted Messaging Apps: CISA recommends apps like Signal, which provide end-to-end encryption and features like vanishing messages for enhanced privacy.
  • Enable Phishing-Resistant MFA: Implement Fast Identity Online (FIDO) multi-factor authentication and avoid SMS-based MFA for improved account security.
  • Adopt Additional Security Practices:
    • Use password managers and telco PINs or passcodes for mobile accounts.
    • Regularly update operating systems and applications.
    • Opt for the latest phone models from manufacturers with strong security records.
    • Avoid private virtual private networks (VPNs) due to potential vulnerabilities.

Special Recommendations for Android Users

Android device users are advised to:

  • Enable end-to-end encryption in Rich Communication Services (RCS).
  • Protect DNS queries and use secure connections in Chrome.
  • Activate Enhanced Protection in Safe Browsing and Google Play Protect.
  • Limit unnecessary app permissions to reduce exposure to vulnerabilities.

As cyber threats grow in complexity, CISA’s proactive guidelines serve as a critical resource for mitigating risks and securing sensitive communications. For the complete document, visit the CISA website.

NCSC Unveils “Pigmy Goat” Malware Targeting Sophos Firewalls in Advanced Chinese Cyberattack

 

The National Cyber Security Centre (NCSC) recently disclosed the presence of a Linux malware, “Pigmy Goat,” specifically designed to breach Sophos XG firewall devices. This malware, allegedly developed by Chinese cyber actors, represents a significant evolution in network infiltration tactics due to its complexity and advanced evasion methods. 

This revelation follows Sophos’ recent “Pacific Rim” reports, which detail a five-year campaign involving Chinese threat actors targeting network devices at an unprecedented scale. Among the identified tools, “Pigmy Goat” stands out as a rootkit crafted to resemble legitimate Sophos product files, making it challenging to detect. This strategy is known to use stealth by masking its identity within commonly named system files to evade basic detection protocols. “Pigmy Goat” enables threat actors to establish persistent, unauthorized access to the target’s network. Using the LD_PRELOAD environment variable, it embeds itself in the SSH daemon (sshd), allowing it to intercept and alter incoming connections. 

The malware seeks specific sequences called “magic bytes” to identify backdoor sessions, which it redirects through a Unix socket, thereby concealing its presence from standard security monitoring. Once a connection is established, it communicates with command and control (C2) servers over TLS. The malware cleverly mimics Fortinet’s FortiGate certificate, blending into networks where Fortinet devices are prevalent, to avoid suspicion. This backdoor offers threat actors multiple capabilities to monitor, control, and manipulate the network environment. Through commands from the C2, attackers can remotely open shell access, track network activity, adjust scheduled tasks, or even set up a SOCKS5 proxy, which helps them remain undetected while maintaining control over the network. These actions could allow unauthorized data access or further exploitation, posing significant threats to organizational cybersecurity. 

The NCSC report aligns “Pigmy Goat” with tactics used in “Castletap” malware, which cybersecurity firm Mandiant has linked to Chinese nation-state actors. The report’s insights reinforce concerns over the evolving sophistication in state-sponsored cyber tools aimed at infiltrating critical network infrastructure worldwide. Detection and prevention of “Pigmy Goat” are crucial to mitigating its impact. The NCSC report provides tools for identifying infection, including file hashes, YARA rules, and Snort rules, which can detect specific sequences and fake SSH handshakes associated with the malware. 

Additionally, monitoring for unusual files and behaviours, such as encrypted payloads in ICMP packets or the use of ‘LD_PRELOAD’ within the sshd process, can be effective. These insights empower network defenders to recognize early signs of compromise and respond swiftly, reinforcing defences against this sophisticated threat.

Chinese Hackers Breach US Telco Networks to Access US Court Wiretap Systems

 

A Wall Street Journal report claims that Chinese hackers gained access to systems used for court-authorized wiretaps by breaking into the networks of major US telecommunications companies. 

The breach, which targeted companies such as Verizon Communications, AT&T, and Lumen Technologies, may have allowed the attackers to go unnoticed for months while gathering critical details regarding government requests for communications data. 

The hackers, who are believed to be affiliated with a state-sponsored Chinese group, were able to breach the system that telecom firms use to handle wiretaps authorised by the government. This breach may have given the perpetrators access to sensitive US internet traffic, allowing them to monitor communications under surveillance orders. 

The attack was recently identified, and it is believed that the hackers may have had long-term access to these networks, gathering intelligence. US investigators have dubbed the group responsible for the breach "Salt Typhoon" The incident is part of a larger pattern of cyber espionage actions attributed to Chinese hackers. 

Earlier this year, US law enforcement shut down another significant Chinese hacking campaign known as "Flax Typhoon," a group suspected of widespread cyber-espionage. These operations are believed to be aimed at gathering intelligence for the Chinese government. 

China's denial

The Chinese foreign ministry responded to the charges by rejecting any involvement in the cyber operation. In a statement, they claimed they were unaware of the attack mentioned in the report and accused the US of fabricating a "false narrative" to blame China. 

The ministry also criticised the US for impeding global cybersecurity cooperation and communication, describing the charges as a roadblock to international efforts to confront cybersecurity concerns. Beijing has always refuted all allegations of state-sponsored hacking, including those made by the US government.

In this instance, China's foreign ministry mentioned details provided by their own cybersecurity agency, claiming that "Volt Typhoon," another supposed Beijing-linked gang, was actually the work of a global ransomware organisation.

Here's How Criminals Are Targeting Users and Enterprises in Mexico

 

A recent Mandiant report highlighted the increasing cyber threats that Mexico is facing, including a sophisticated blend of domestic and global cybercrime that targets both individuals and businesses. 

Mexico's economy, ranked 12th largest in the world, makes it an appealing target for both financially driven hackers and cyber criminals from countries like North Korea, China, and Russia.

Since 2020, cyber espionage groups from over ten nations have been identified attempting to breach Mexican organisations. Among these, attackers affiliated with the People's Republic of China (PRC), North Korea, and Russia have been the most active, with China accounting for one-third of government-sponsored phishing activity.

Chinese actors are focussing specifically on news, education, and government organisations in Mexico; this is consistent with similar targeting strategies observed in regions where China has made large investments. 

Since the start of the war in Ukraine, North Korean outfits have focused on financial technology and cryptocurrency firms, while Russian cyber espionage activities have fallen substantially as resources have been diverted to other areas. The use of commercial spyware in Mexico is also highlighted in the report, with politicians, human rights advocates, and journalists being among the targets.

These tools are frequently sold to governments or attackers and are used to detect and exploit vulnerabilities in consumer devices. While spyware attacks only affect a few people at a time, they have significant implications for Mexico's press freedom and political integrity. 

Mandiant's report highlights a significant increase in ransomware and extortion operations in Mexico. From January 2023 to July 2024, Mexico ranked second in Latin America in terms of data leak site (DLS) listings following ransomware attacks, trailing only Brazil. LockBit, ALPHV, and 8BASE have been the most active in Mexico, concentrating on industries including manufacturing, technology, and financial services.

Threats from financial malware distribution efforts persist in Mexico, as attackers use lures related to taxes and finance to trick unsuspecting victims into downloading malicious software. UNC4984 and other groups have been seen distributing malware to Mexican banks via spoofed Mexican government websites, including the Mexican Tax Administration Service (SAT).