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Showing posts with label Malware attacks. Show all posts
North Korea cyberattacks
cyberattacks trending news malware Malware attacks News North Korea North Korea Hackers North Korea cyberattacks

North Korean Hackers Target Fintech and Gaming Firms with Fake Zoom Apps

 

A newly uncovered cyber campaign is targeting organizations across North America, Europe, and the Asia-Pacific by exploiting fake Zoom applications. Cybersecurity experts have traced the operation to BlueNoroff, a notorious North Korean state-backed hacking group affiliated with the Lazarus Group. The campaign’s primary focus is on the gaming, entertainment, and fintech sectors, aiming to infiltrate systems and steal cryptocurrency and other sensitive financial data. 

Attack strategy 

The attack begins with a seemingly innocuous AppleScript disguised as a routine maintenance operation for Zoom’s software development kit (SDK). However, hidden within the script—buried beneath roughly 10,000 blank lines—are malicious commands that quietly download malware from a counterfeit domain, zoom-tech[.]us. 

Once the malware is downloaded, it integrates itself into the system through LaunchDaemon, granting it persistent and privileged access at every system startup. This allows the malware to operate covertly without raising immediate alarms. The malicious software doesn’t stop there. It fetches additional payloads from compromised infrastructure, presenting them as legitimate macOS components like “icloud_helper” and “Wi-Fi Updater.” 

These files are designed with anti-forensics techniques to erase temporary files and conceal their activity, all while maintaining a hidden backdoor for remote control and data exfiltration. This deceptive approach is particularly dangerous in remote work environments, where minor software issues are often resolved without deep inspection—making it easier for such malware to slip past unnoticed. 

Motives behind the attack

BlueNoroff’s intent appears financially driven. The malware specifically searches for cryptocurrency wallet extensions, browser-stored login credentials, and authentication keys. In one known incident dated May 28, a Canadian online gambling platform fell victim to this scheme after its systems were compromised via a fraudulent Zoom troubleshooting script. 

Protection Measures for Organizations Given the growing sophistication of such campaigns, security experts recommend several protective steps: 

• Independently verify Zoom participants to ensure authenticity. 

• Block suspicious domains like zoom-tech[.]us at the firewall level. 

• Deploy comprehensive endpoint protection that can detect hidden scripts and unauthorized daemons. 

• Invest in reliable antivirus and ransomware protection, especially for firms with cryptocurrency exposure. 

• Use identity theft monitoring services to detect compromised credentials early. 

• Train employees to recognize and respond to social engineering attempts. 

• Secure digital assets with hardware wallets instead of relying on software-based solutions alone.
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Palo Alto Networks
Botnet Botnet attack cryptocurrency mining Cyber Attacks Evasion Tactics Linux Linux Malware Linux Security Linux Servers Malware attacks Palo Alto Palo Alto Networks

Palo Alto Detects New Prometei Botnet Attacks Targeting Linux Servers

Cybersecurity analysts from Palo Alto Networks’ Unit 42 have reported a resurgence of the Prometei botnet, now actively targeting Linux systems with new, upgraded variants as of March 2025. Originally discovered in 2020 when it was aimed at Windows machines, Prometei has since expanded its reach. 

Its Linux-based malware strain has been in circulation since late 2020, but recent versions—designated as 3.x and 4.x—demonstrate significant upgrades in their attack capabilities. The latest Prometei malware samples are equipped with remote control functionality, domain generation algorithms (DGA) to ensure connection with attacker-controlled servers, and self-updating systems that help them remain undetected. This renewed activity highlights the botnet’s growing sophistication and persistent threat across global networks. 

At its core, Prometei is designed to secretly mine Monero cryptocurrency, draining the resources of infected devices. However, it also engages in credential harvesting and can download additional malicious software depending on the attacker’s goals. Its modular framework allows individual components to carry out specific tasks, including brute-force attacks, vulnerability exploitation (such as EternalBlue and SMB bugs), mining operations, and data exfiltration. 

The malware is typically delivered via HTTP GET requests from rogue URLs like hxxp://103.41.204[.]104/k.php. Prometei uses 64-bit Linux ELF binaries that extract and execute payloads directly in memory. These binaries also carry embedded configuration data in a JSON format, containing fields such as encryption keys and tracking identifiers, making them harder to analyze and block. 

Once a system is compromised, the malware collects extensive hardware and software information—CPU details, OS version, system uptime—and sends this back to its command-and-control (C2) servers, including addresses like hxxp://152.36.128[.]18/cgi-bin/p.cgi. Thanks to DGA and self-update features, Prometei ensures consistent communication with attacker infrastructure and adapts to security responses on the fly.  

To defend against these threats, Palo Alto Networks advises using advanced detection tools such as Cortex XDR, WildFire, and their Advanced Threat Prevention platform. These technologies utilize real-time analytics and machine learning to identify and contain threats. Organizations facing a breach can also contact Palo Alto’s Unit 42 incident response team for expert help. 

The activity observed from March to April 2025 underlines the continued evolution of the Prometei botnet and the growing risk it poses to businesses relying on Linux environments. Strengthening cybersecurity protocols and remaining alert to new threats is essential in today’s threat landscape.
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personal data leak
Data Breach Data Leak data security Data stealing malware Database Breach Infostealer Infostealer Malware Login Credentials Login Security Malware attacks personal data leak

Massive Data Leak Exposes 16 Billion Login Records from Major Online Services

 

A recent investigation by Cybernews has uncovered a staggering 30 separate online datasets containing approximately 16 billion stolen login credentials from services including Apple, Google, and Facebook. These data dumps, discovered through open sources, appear to be the result of large-scale malware attacks that harvested user information through infostealers. 

Each dataset contains a URL alongside usernames and passwords, suggesting that malicious software was used to collect login details from infected devices. While some overlap exists among the records, the overall size and spread of the leak make it difficult to determine how many unique users have been compromised. 

Except for one dataset previously identified by cybersecurity researcher Jeremiah Fowler—which included over 185 million unique credentials—most of the remaining 29 databases had not been publicly reported before. These leaked collections are often only temporarily available online before being removed, but new compilations are regularly uploaded, often every few weeks, with fresh data that could be weaponized by cybercriminals. The exact sources and individuals behind these leaks remain unknown. 

To avoid falling victim to similar malware attacks, experts advise staying away from third-party download platforms, especially when obtaining software for macOS. Users are encouraged to download apps directly from the Mac App Store or, if not available there, from a developer’s official website. Using cracked or pirated software significantly increases the risk of malware infection. 

Phishing scams remain another common threat vector. Users should be cautious about clicking on links in unsolicited emails or messages. Even if a message appears to come from a trusted company, it’s vital to verify the sender’s address and inspect URLs carefully. You can do this by copying the link and pasting it into a text editor to see its actual destination before clicking. 

To reduce the chance of visiting malicious sites, double-check the spelling of URLs typed manually and consider bookmarking commonly used sites. Alternatively, using a search engine and clicking on verified results can reduce the risk of visiting typo-squatting domains. 

If you suspect your credentials may have been compromised, take immediate action. Start by updating passwords on any affected services and enabling two-factor authentication for added security. It’s also wise to check your financial statements for unauthorized activity and consider placing a freeze on your credit file to prevent fraudulent account openings. 

Additionally, tools like Have I Been Pwned can help verify if your email address has been part of a known breach. Always install the latest system and app updates, as they often include crucial security patches. Staying current with updates is a simple but effective defense against vulnerabilities and threats.
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phishing
CAPTCHA CAPTCHA Security Cyber Attacks cybercriminals Fake Captcha Hacker attack Hackers Malware attacks phishing

Fake CAPTCHAs Are the New Trap: Here’s How Hackers Are Using Them to Install Malware

 

For years, CAPTCHAs have been a familiar online hurdle—click a box, identify a few blurry images, and prove you’re human. They’ve long served as digital gatekeepers to help websites filter out bots and protect against abuse. But now, cybercriminals are turning this trusted security mechanism into a tool for deception. Security researchers are sounding the alarm over a growing threat: fake CAPTCHAs designed to trick users into unknowingly installing malware. 

These phony tests imitate the real thing, often appearing as pop-up windows or embedded verification boxes on compromised websites. At first glance, they seem harmless—just another quick click on your way to a webpage. But a single interaction can trigger a hidden chain reaction that compromises your device. The tactic is subtle but effective. By replicating legitimate CAPTCHA interfaces, attackers play on instinct. Most users are conditioned to complete CAPTCHAs without much thought. That reflexive click becomes the entry point for malicious code. 

One reported incident involved a prompt asking users to paste a code into the Windows Run dialog—an action that launched malware installation scripts. Another campaign tied to the Quakbot malware family used similar deception, embedding CAPTCHAs that initiated background downloads and executed harmful commands with a single click. These attacks, often referred to as ClickFix CAPTCHA scams, are a form of social engineering—a psychological manipulation tactic hackers use to exploit human behavior. 

In this case, attackers are banking on your trust in familiar security prompts to lower your guard. The threat doesn’t stop at just fake clicks. Some CAPTCHAs redirect users to infected web pages, while others silently copy dangerous commands to the clipboard. In the worst cases, users are tricked into pressing keyboard shortcuts that launch Windows PowerShell, allowing attackers to run scripts that steal data, disable security software, or hijack system functions. 

Experts warn that this method is particularly dangerous because it blends in so well with normal browsing activity. Unlike more obvious phishing scams, fake CAPTCHA attacks don’t rely on emails or suspicious links—they happen right where users feel safe: in their browsers. To defend against these attacks, users must remain skeptical of CAPTCHAs that ask for more than a simple click. 

If a CAPTCHA ever requests you to enter text into system tools, press unusual key combinations, or follow unfamiliar instructions, stop immediately. Those are red flags. Moreover, ensure you have reliable antivirus protection installed and keep your browser and operating system updated. Visiting lesser-known websites? Use an ad blocker or security-focused browser extension to reduce exposure to malicious scripts. 

As CAPTCHA-based scams grow more sophisticated, digital vigilance is your best defense. The next time you’re asked to “prove you’re not a robot,” it might not be your humanity being tested—but your cybersecurity awareness.
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Malwares
Cyber Attacks cybercriminals data security Data Theft Hackers Infostealer Infostealer Malware Malware attacks Malwares

The Growing Threat of Infostealer Malware: What You Need to Know

 

Infostealer malware is becoming one of the most alarming cybersecurity threats, silently stealing sensitive data from individuals and organizations. This type of malware operates stealthily, often going undetected for long periods while extracting valuable information such as login credentials, financial details, and personal data. As cybercriminals refine their tactics, infostealer attacks have become more frequent and sophisticated, making it crucial for users to stay informed and take preventive measures. 

A significant reason for concern is the sheer scale of data theft caused by infostealers. In 2024 alone, security firm KELA reported that infostealer malware was responsible for leaking 3.9 billion passwords and infecting over 4.3 million devices worldwide. Similarly, Huntress’ 2025 Cyber Threat Report revealed that these threats accounted for 25% of all cyberattacks in the previous year. This data highlights the growing reliance of cybercriminals on infostealers as an effective method of gathering personal and corporate information for financial gain. 

Infostealers operate by quietly collecting various forms of sensitive data. This includes login credentials, browser cookies, email conversations, banking details, and even clipboard content. Some variants incorporate keylogging capabilities to capture every keystroke a victim types, while others take screenshots or exfiltrate files. Cybercriminals often use the stolen data for identity theft, unauthorized financial transactions, and large-scale corporate breaches. Because these attacks do not immediately disrupt a victim’s system, they are harder to detect, allowing attackers to extract vast amounts of information over time. Hackers distribute infostealer malware through multiple channels, making it a widespread threat. 

Phishing emails remain one of the most common methods, tricking victims into downloading infected attachments or clicking malicious links. However, attackers also embed infostealers in pirated software, fake browser extensions, and even legitimate platforms. For example, in February 2025, a game called PirateFi was uploaded to Steam and later found to contain infostealer malware, compromising hundreds of devices before it was removed. Social media platforms, such as YouTube and LinkedIn, are also being exploited to spread malicious files disguised as helpful tools or software updates. 

Beyond stealing data, infostealers serve as an entry point for larger cyberattacks. Hackers often use stolen credentials to gain unauthorized access to corporate networks, paving the way for ransomware attacks, espionage, and large-scale financial fraud. Once inside a system, attackers can escalate their access, install additional malware, and compromise more critical assets. This makes infostealer infections not just an individual threat but a major risk to businesses and entire industries.  

The prevalence of infostealer malware is expected to grow, with attackers leveraging AI to improve phishing campaigns and developing more advanced evasion techniques. According to Check Point’s 2025 Cybersecurity Report, infostealer infections surged by 58% globally, with Europe, the Middle East, and Africa experiencing some of the highest increases. The SYS01 InfoStealer campaign, for instance, impacted millions across multiple continents, showing how widespread the issue has become. 

To mitigate the risks of infostealer malware, individuals and organizations must adopt strong security practices. This includes using reliable antivirus software, enabling multi-factor authentication (MFA), and avoiding downloads from untrusted sources. Regularly updating software and monitoring network activity can also help detect and prevent infections. Given the growing threat, cybersecurity awareness and proactive defense strategies are more important than ever.
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Malwares
browser credential theft Browser Extension Cyber Attacks Login Credentials Malicious Browser Extension Malware attacks Malwares

New Malware Impersonates Browser Extensions to Steal Login Credentials

 

Cybercriminals are continually evolving their tactics to evade antivirus detection and trick users into installing malicious software. One of the latest threats involves malware that impersonates legitimate browser extensions, allowing attackers to steal login credentials while remaining undetected. Although this discovery is concerning, researchers have identified the vulnerability before it could be widely exploited, giving security teams time to respond. 

According to a report by SquareX Labs, this attack starts with scammers developing seemingly useful browser extensions, such as an AI-powered transcription tool. To avoid malware detection, they distribute the extension outside official platforms like the Chrome Web Store or Google Play. Users are then encouraged to pin the extension for easy access, allowing it to quietly monitor their browsing habits over time. 

Once installed, the malicious extension collects data on the user’s existing extensions, particularly those used for handling sensitive information, such as password managers. When the right opportunity arises, it disables the legitimate extension and replaces its icon with an identical version. If the user attempts to access their password manager, they unknowingly interact with the fake extension instead. 

To further deceive users, the fraudulent extension displays a message stating that their session has expired, requiring them to log in again. However, rather than accessing their accounts, victims unknowingly submit their credentials directly to cybercriminals. With this information, attackers can break into password vaults, gaining access to sensitive data, stored passwords, and linked accounts. This method is particularly dangerous because it exploits trust in well-known extensions. 

Unlike traditional phishing attempts, which rely on fake websites or deceptive emails, this attack leverages the user’s own browser environment, making it harder to detect. Victims may not realize they’ve been compromised until they notice unauthorized activity on their accounts. Despite the sophistication of this attack, there is no immediate reason for panic. Security researchers identified the exploit before cybercriminals could widely deploy it, and browser developers have been alerted to the risk. 

However, this incident underscores the importance of practicing good cybersecurity habits. Users should only install browser extensions from trusted sources like the Chrome Web Store, avoid third-party downloads, and check reviews before installation. 

Additionally, enabling multi-factor authentication (MFA) on important accounts can provide an extra layer of security, reducing the risk of credential theft. As cyber threats continue to evolve, staying informed and cautious about software installations remains crucial to maintaining online security.
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Mobile Malware
Bank Information Security Cyber Attacks data security Data Theft Fake Apps Malicious Apps Malware attacks Mobile Malware

Massive Mobile Malware Campaign Targets Indian Banks, Steals Financial Data

 

Zimperium's zLabs research team has uncovered a significant mobile malware campaign that targets Indian banks. First reported on February 5, 2025, this threat was orchestrated by a threat actor called FatBoyPanel. Nearly 900 malware samples are used in the campaign, which is distributed via WhatsApp and uses malicious apps that impersonate banking or government apps to steal private and sensitive financial data from unsuspecting users.  

Once installed, the malicious apps steal the users data, such as credit and debit card information, ATM PINs, Aadhaar card details, PAN card numbers, and mobile banking information. Additionally, the malware uses sophisticated stealth techniques to conceal itself and avoid detection or removal by intercepting SMS messages that contain OTPs. 

By using the reputation and legitimacy of Indian banks and government agencies to trick users into thinking the apps are authentic, this cyberattack is a clear illustration of how threat actors have advanced to a new level. These cybercriminals are deceiving users into downloading malicious apps intended to drain accounts and compromise sensitive data by posing as trustworthy organizations. 

Upon closer examination, the malware can be divided into three different types: hybrid, firebase-exfiltration, and SMS forwarding. Different exfiltration techniques are used by each variant to steal confidential information. By employing live phone numbers to intercept and reroute SMS messages in real time, these Trojan Bankers go beyond standard attacks. By hiding its icon, the malware makes itself even more difficult to remove. 

According to a Zimperium report, more than 1,000 malicious applications were created with the intention of stealing banking credentials. An estimated 50,000 victims were impacted by the campaign, which revealed 2.5GB of financial and personal data kept in 222 unprotected Firebase buckets. Attackers have been able to trick users into divulging extremely sensitive information by using phony government and banking apps that are distributed via WhatsApp. 

This breach has serious repercussions, including the possibility of identity theft, financial loss, and privacy violations for impacted users. In order to assist authorities in locating the cybercriminals responsible for FatBoyPanel, Zimperium has shared the gathered data with them. Users should use security software to identify and eliminate malware, update their devices frequently, and refrain from downloading apps from unidentified sources in order to protect themselves. 

On Thursday, Feb. 20, Zimperium, the global leader in mobile security, will release new research highlighting the evolving landscape of mobile phishing attacks.

As organizations increasingly rely on mobile devices for business operations including BYOD, multi-factor authentication, cloud applications, and mobile-first workflows, mobile phishing is becoming one of the most severe threats to enterprise security. Adversaries are exploiting security gaps in mobile and cloud-based business applications, expanding the attack surface and increasing exposure to credential theft and data compromise.

Zimperium’s latest research provides a data-driven look at how attackers are evolving their tactics to evade detection and why businesses must rethink their security strategies to stay ahead. 

Key findings from the report include: Mishing surge: Activity peaked in August 2024, with over 1,000 daily attack records. Smishing (SMS/text based phishing) attacks dominate globally with 37% in India, 16% in the U.S., and 9% in Brazil. Quishing (QR code phishing) is gaining traction, with notable activity in Japan (17%), the U.S. (15%), and India (11%). Stealthy phishing techniques: 3% of phishing sites use device-specific detection to display harmless content on desktops while delivering malicious phishing payloads exclusively to mobile users. Zimperium’s research emphasizes that traditional anti-phishing solutions designed for desktops are proving inadequate against this shift, making mobile threat defense a critical necessity for organizations worldwide.

The FatBoyPanel campaign emphasizes the need for increased vigilance in an increasingly digital world and the increasing sophistication of cyber threats. Keeping up with online security best practices is crucial to reducing risks and protecting financial and personal information as cybercriminals improve their tactics.
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Ransomwares
Cyber Security Cyber Security Vendor macOS MacOS Malware Malware attacks MITRE MITRE ATT&CK Ransomwares

MITRE’s Latest ATT&CK Evaluations Reveal Critical Insights into Cybersecurity Solutions

 

MITRE Corporation has published its findings from the latest round of ATT&CK evaluations, offering important insights into the effectiveness of enterprise cybersecurity solutions. This sixth evaluation assessed 19 vendors against two major ransomware strains, Cl0p and LockBit, as well as North Korean-linked malware targeting macOS systems. The advanced malware simulations used during the evaluation highlighted sophisticated tactics, such as exploiting macOS utilities and covert data exfiltration, emphasizing the dynamic nature of modern cyber threats.

The Findings and Their Significance

According to MITRE’s general manager, William Booth, the evaluation revealed notable disparities in vendors’ abilities to detect and distinguish between malicious activities. Some solutions achieved high detection rates but also suffered from alarmingly high false-positive rates, indicating a need for better precision in threat identification. MITRE’s methodology involved a two-phase approach: first, evaluating baseline detection capabilities and then assessing protection performance after vendors adjusted their configurations to improve detection accuracy. This approach highlights the adaptability of vendors in enhancing their solutions to counter emerging threats.

The Struggles with Post-Compromise Detection

A key takeaway from the evaluation was the struggle vendors faced with post-compromise threat detection. MITRE stressed the importance of detecting and mitigating ransomware activities after the initial breach, as ransomware often mimics legitimate system behaviors. Booth emphasized that relying solely on blocking initial infections is no longer sufficient—solutions must also account for activities occurring later in the attack chain. This represents a critical area where cybersecurity solutions need improvement to effectively neutralize threats at all stages of an attack.

Contrasting Detection Strategies

The evaluation also highlighted differences in detection strategies among vendors. Some vendors utilized machine learning and AI-based methods for threat detection, while others relied on more traditional heuristic approaches. These contrasting methodologies led to varying levels of effectiveness, particularly in the detection of false positives and distinguishing between benign and malicious activities. The use of AI-based methods showed promise, but some vendors struggled with accuracy, underscoring the challenges faced by the industry in keeping up with evolving threats.

MacOS Threats: A New Challenge

For the first time, MITRE included macOS threats in its evaluation. Addressing macOS malware posed unique challenges, as there is limited publicly available Cyber Threat Intelligence (CTI) on such threats. Despite these challenges, MITRE’s inclusion of macOS malware reflects its commitment to addressing the evolving threat landscape, particularly as more organizations adopt Apple devices in their enterprise environments. The move signals MITRE’s proactive approach to ensuring that cybersecurity solutions account for all major operating systems in use today.

Looking Ahead: Vendor Transparency and Improvement

Although MITRE refrains from ranking vendors, its evaluation provides transparency that can guide organizations in making informed decisions about their cybersecurity strategies. The findings underscore the importance of refining cybersecurity technologies to meet the demands of a rapidly evolving cyber environment. Booth highlighted that these evaluations encourage vendors to continuously improve their technologies to better counter the increasing sophistication of cyber threats.

By incorporating ransomware and macOS malware into its evaluations, MITRE continues to shed light on the complexities of modern cyberattacks. The insights gained from this evaluation are invaluable for organizations looking to enhance their defenses against increasingly sophisticated threats. As cyberattacks become more advanced, understanding the varying capabilities of enterprise security solutions is essential for building a robust cybersecurity posture.

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