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DHS Investigators: Stopped Cyberattack on Undersea Internet Cable in Hawaii

 

An apparent cyberattack on an unknown telecommunication company's servers related to an underwater cable responsible for internet, cable service, and cell connections in Hawaii and the region was "disrupted" by federal agents in Honolulu last week, the agency told in a statement on Tuesday. 

Hawaii-based agents with Homeland Security Investigations, an arm of the Department of Homeland Security, received a tip from their mainland HSI counterparts that led to the disruption of a major intrusion involving a private company's servers associated with an underwater cable. "An international hacker group" was involved in the attack, according to the probe, and HSI agents and international law enforcement partners in multiple countries were able to make an arrest.

The statement did not specify the sort of cyberattack, the hacking group responsible, other law enforcement agencies involved, or the location of any arrests. According to the statement, no damage or interruption happened, and there is no immediate threat. Investigators discovered that the attackers had gained credentials that permitted access to an unnamed company's systems, according to John Tobon, HSI's special agent in charge in Hawaii, who informed a local news station. 

“It could have been something to just create havoc, in other words, just shut down communications, or it could have been used to target individuals in ransomware-type schemes,” he stated.

According to the National Oceanic and Atmospheric Administration, hundreds of "submarine" internet cables carry up to 95 percent of intercontinental internet data. According to an Atlantic Council report, the cables are owned and operated by a mix of corporate and state-owned enterprises, and they are experiencing increasing threats to their security and resilience. 

Justin Sherman, the report's author, highlights worries about authoritarian governments' intent to restrict internet access by influencing physical infrastructure like submarine lines. The lines are also appealing targets for government or criminal parties attempting to collect sensitive data through covert surveillance. Another issue, according to Sherman, is that more cable operators are employing remote management tools for cable networks. 

He wrote, “Many of these systems have poor security, which exposes cables to new levels of cybersecurity risk. Hackers could break into these internet-connected systems from anywhere in the world and physically manipulate cable signals, causing them to drop off entirely — undermining the flow of internet data to specific parts of the world.” 

Sherman added, “One can even imagine a threat actor (state or non-state) hacking into a cable management system and trying to hold the infrastructure hostage.”

New Hybrid Enemybot Malware Targets Routers, Web Servers

 

A recently discovered DDoS botnet is enslaving multiple router models and various types of web servers by abusing known vulnerabilities, researchers at Fortinet Labs warned. 

Dubbed Enemybot, the botnet has been linked to the cybercrime group named Keksec which specializes in DDoS attacks and cryptocurrency mining and has been linked to multiple botnets such as Simps, Ryuk, and, Samel. 

The malware is the result of combining and modifying the source code of the Gafgyt (Bashlite) botnet – which leaked in 2015 –and the infamous Mirai botnet, with the latest version using the scanner module and a bot killer module. 

Enemybot employs multiple obfuscation methodologies meant not only to prevent analysis, but also to keep it concealed from other botnets, and connect to a remote server that's hosted in the Tor anonymity network to fetch attack commands. 

The new botnet also attempts to exploit a wide range of devices and architectures by using known combinations of usernames and passwords, running shell commands on Android devices with a compromised Android Debug Bridge port (5555), and targeting roughly 20 known router vulnerabilities.

The most recent of the targeted security loopholes is CVE-2022-27226, a remote code execution issue that impacts iRZ mobile routers, and which was made public on March 19, 2022. Enemybot, Fortinet points out, is the first botnet to target devices from this vendor. 

Enemybot also targets the now infamous Apache Log4j remote code execution vulnerabilities disclosed last year (CVE-2021-44228 and CVE-2021-45046), as well as a couple of path traversal issues in the Apache HTTP server (CVE-2021-41773 and CVE-2021-42013). 

The botnet also attempts to abuse security loopholes in TOTOLINK routers and Seowon routers, as well as older vulnerabilities in ThinkPHP, D-Link routers, NETGEAR products, Zhone routers, and ZyXEL devices. 

Once a flaw has been successfully abused, the malware runs a shell command to download a shell script from a URL that is dynamically updated by the C&C. The script is responsible for downloading the actual Enemybot binary compiled for the target device’s architecture.

After successful exploitation, the malware links to its C&C server and waits for further instructions. Based on received commands, it can perform DNS amplification attacks and various types of DDoS assaults, sniff traffic, and spread to other devices via brute force attacks. 

“This mix of exploits targeting web servers and applications beyond the usual IoT devices, coupled with the wide range of supported architectures, might be a sign of Keksec testing the viability of expanding the botnet beyond low-resource IoT devices for more than just DDoS attacks. Based on their previous botnet operations, using them for crypto mining is a big possibility,” Fortinet notes.

Emotet : The Infamous Botnet Has Returned

 

Kaspersky researchers were able to retrieve and analyze 10 out of 16 modules, with most having been used by Emotet in the past in one form or another. Kaspersky Lab was created in 1997 as multinational cybersecurity and digital privacy organization. Kaspersky's deep risk intelligence and security expertise are continually evolving into new security solutions and services to safeguard enterprises, vital infrastructure, governments, and consumers all around the world. 

Emotet was discovered in the wild for the first time in 2014. Its major purpose back then was to steal user's financial credentials. Since then, it has gone through several modifications, began transmitting other viruses, and eventually evolved into a strong botnet. Emotet is a type of malware classified as banking Trojans. Malspam, or spam emails with malware, is the most common way for it to propagate. To persuade users, these communications frequently contain familiar branding, imitating the email structure of well-known and trustworthy companies such as PayPal or DHL. 

As per Kaspersky telemetry, the number of victims increased from 2,843 in February 2022 to 9,086 in March 2022, indicating the attackers targeted more than three times the number of users. As a result, the number of threats detected by Kaspersky solutions has increased, from 16,897 in February 2022 to 48,597 in March 2022. 

A typical Emotet infection starts with spam e-mails containing malicious macros in Microsoft Office attachments. The actor can use this macro to launch a malicious PowerShell command which will drop and start a module loader, which will then talk with a command and control server to download and start modules. In the percent Windows percent SysWOW64 or percent User percent AppDataLocal directory, Emotet creates a subfolder with a random name and replicates itself under a completely random name and extension. The exported Control RunDLL method is used to launch the Emotet DLL's primary activity. These modules can be used to carry out a range of actions on the infected computer. Kaspersky researchers were able to extract and evaluate 10 of the 16 modules, the majority of which had previously been utilized by Emotet. 

Researchers now state that the Emotet can download 16 modules judging by the recent Emotet protocol and C2 answers. They were able to recover ten of them (including two separate copies of the Spam module), which were utilized by Emotet to steal credentials, passwords, accounts, and e-mail addresses, as well as spam. We present a brief examination of these modules and also statistics on current Emotet attacks in this post. 

To gather the account details of various email clients, the current version of Emotet can create automated spam campaigns which are further spread down the network from infected devices, retrieving emails and email addresses from Thunderbird and Outlook apps and accumulating passwords from popular web browsers like Internet Explorer, Mozilla Firefox, Google Chrome, Safari, and Opera. 

Emotet infects computers in businesses and homes all around the world. As per our telemetry, Emotet most frequently targeted users from the following countries in Q1 2022: Italy (10.04%), Russia (9.87%), Japan (8.55%), Mexico (8.36%), Brazil (6.88%), Indonesia (4.92%), India (3.21%), Vietnam (2.70%), China (2.62), Germany (2.19%) and Malaysia (2.13%). 

The present set of components is capable of a wide range of malicious activities, including stealing e-mails, passwords, and login data from a variety of sources, as well as spamming. Except for the Thunderbird components, Emotet has utilized all of these modules in some form or another before. However, there are still a few modules that we haven't been able to get our hands-on.

This New Malware Uses Windows Bugs to Conceal Scheduled Tasks

 

Microsoft has found a new malware employed by the Chinese-backed Hafnium hacking group to create and hide scheduled activities on compromised Windows PCs in order to sustain persistence. 

Cyberespionage attacks by the Hafnium threat group have previously targeted US defence businesses, think tanks, and researchers. It's also one of the state-sponsored groups Microsoft has tied to the global exploitation of the ProxyLogon zero-day vulnerability, which affected all supported Microsoft Exchange versions last year. 

The Microsoft Detection and Response Team (DART) stated, "As Microsoft continues to track the high-priority state-sponsored threat actor HAFNIUM, new activity has been uncovered that leverages unpatched zero-day vulnerabilities as initial vectors. Further investigation reveals forensic artifacts of the usage of Impacket tooling for lateral movement and execution and the discovery of a defence evasion malware called Tarrask that creates 'hidden' scheduled tasks, and subsequent actions to remove the task attributes, to conceal the scheduled tasks from traditional means of identification." 

Tarrask, a hacking tool, hides them from "schtasks /query" and Task Scheduler by removing the related Security Descriptor registry value, which is a previously undiscovered Windows flaw. 

By re-establishing dropped connections to command-and-control (C2) infrastructure, the threat group was able to keep access to the infected devices even after reboots. While the Hafnium operators could have deleted all on-disk artefacts, including all registry keys and the XML file uploaded to the system folder, this would have destroyed persistence between restarts. 

The "hidden" tasks can only be discovered by performing a manual search of the Windows Registry for scheduled tasks that do not have an SD (security descriptor) Value in their Task Key. 

Admins can additionally check for important events associated to tasks "hidden" by Tarrask malware by enabling the Security.evtx and Microsoft-Windows-TaskScheduler/Operational.evtx logs. Microsoft also suggests setting logging for 'TaskOperational' in the Microsoft-Windows-TaskScheduler/Operational Task Scheduler log and keeping an eye on outbound connections from crucial Tier 0 and Tier 1 assets. 

DART added, "The threat actors in this campaign used hidden scheduled tasks to maintain access to critical assets exposed to the internet by regularly re-establishing outbound communications with C&C infrastructure. We recognize that scheduled tasks are an effective tool for adversaries to automate certain tasks while achieving persistence, which brings us to raising awareness about this oft-overlooked technique."

F5 Patches NGINX LDAP Zero-Day Bug

 

The maintainers of NGINX, F5 Networks, have disclosed a zero-day bug on NGINX Lightweight Directory Access Protocol Reference (LDAP) implementation at the end of the first week of April. Now, they have released security updates to address security loophole in LDAP.

According to security analysts at F5, NGINX Open Source and NGINX Plus are not affected by the bug by themselves. So, there is no action required if the reference implementation is not employed.

“NGINX Open Source and NGINX Plus are not themselves affected, and no corrective action is necessary if you do not use the reference implementation,” Liam Crilly and Timo Stark of F5 Networks said in an advisory. However, if LDAP reference implementation is used, any of the following conditions will cause vulnerability in the systems: 

• Command-line parameters to configure the Python-based reference implementation daemon 
• Unused, optional configuration parameters and 
• Specific group membership to carry out LDAP authentication

If any of these conditions are fulfilled, a threat actor could override the configuration parameters by sending specially designed HTTP request headers and even bypass LDAP authentication. This would allow LDAP authentication failure to occur even if the user is falsely authenticated. 

“The Python daemon does not sanitize its inputs. Consequently, an attacker can use a specially crafted request header to bypass the group membership (member Of) check and so force LDAP authentication to succeed even if the user being authenticated does not belong to the required groups,” F5 researchers told.

“To mitigate against this, ensure that the backend daemon that presents the login form strips any special characters from the username field. In particular, it must remove the opening and closing parenthesis characters – () – and the equal sign (=), which all have special meanings for LDAP servers. advisory. The backend daemon in the LDAP reference implementation will be updated in this way in due course.” 

NGINX project developers advised users to strip special characters so as they are removed from the username field during authentication, and to update configuration parameters using an empty value. The LDAP-reference implementation mainly explains how the integration operates, and all the components necessary to verify it and how it is not a production grade LDAP solution.

Brazilian Banks Place a Priority on A.I. and Cybersecurity

 

According to a new survey, artificial intelligence (AI) and cybersecurity are some of the top concerns for banking institutions in Brazil's technology strategy. Analysis of data and the complexity of data analysis strategies relating to evidence gained through the ongoing Open Finance initiative are also a top priority for 78 percent of participants, according to the yearly basis research published by the Brazilian Banking Federation (Febraban) in collaboration with Deloitte.

"It merely came to our attention at the time." For the past 3 decades, it has been Brazilian banks, not fintech or startups, who are at the forefront and remain to be at the stage of international banking technology. Banks have always been digital, innovative, and sophisticated, but most importantly, safe and dependable. "We are not dedicated to it," says FEBRABAN President Isaac Sidney. 

Other innovations have been cited as vital, in addition to AI and cybersecurity, which were cited as key priorities and main areas of concentration in 2021 and remain so this year. 

Public cloud (94 %), Big Data (94 %), process mining (78 %), IoT (75 %), blockchain (67 %), and quantum computing (50 %) were all highlighted by IT decision-makers as current priorities. 

Other goals mentioned by the CEOs in the report were the creation of super apps or superstores (39%) and data-driven financial counseling (35%) as well as store transformation (30%) and WhatsApp-based transactions (30%). Initiatives focused on boosting customer trust in data sharing (22 percent) and expanding chatbot-based transactions are at the bottom of the list (17 percent ).
 
Other objectives highlighted by CEOs in the research included the construction of mega apps or superstores (39%) and data-driven financial advice (35%), as well as shop transformation (30%) and WhatsApp-based trades (30 percent ). At the bottom of the list are initiatives aimed at increasing trust in data sharing (22%), as well as extending chatbot-based transactions (17%).

For the study, Febraban polled 24 firms via a questionnaire, representing 90% of the Brazilian banking industry. The qualitative study enlisted the participation of 34 executives. During November and December 2021, one of three phases of research was completed. 

Banks are widely regarded as pioneers in digital transformation efforts. "If you look at that market, they have complexity in what they have," EY's Errol Gardner said in a recent interview with TechInformed. "But they are putting tremendous investment into digital and the services which wrap around it ." However, many banks continue to be particularly focused on the conventional, local branch network, methods of operating."

Beware of Latest Eavesdropping Scam Targeting Victims with Vague Voicemails

 

Researchers at Hiya, a Seattle-based firm specializing in robocall-blocking algorithms and apps have uncovered the newest scam call campaign dubbed “Eavesdropping Scam”. The latest fraud campaign begins with vague voicemail messages left on a victim’s smartphone in which an unknown voice is heard talking about them to another person. 

According to researchers, since 79% of unknown calls go unanswered, the scammers leave a voicemail. If a potential victim’s curiosity picks up in a voicemail claiming “I’m trying to get ahold of them right now” and decides to call back, the fraudsters on the other end of the line attempt to steal their private details or money by offering fraudulent tax relief services.

The eavesdropping scam operates in a sophisticated manner by deploying both a new strategy (leaving non-descriptive voicemails to get a call back) and a new script (pretending to discuss the recipient). The scam evades most call protection services because it does not contain any traditional scam call markers. 

Unlike other campaigns, the scammers use authentic numbers and lure people to call back. The call seems very discreet despite being a mass volume robocall, and the content of the voicemail is so vague that it does not include any typical fraud-related keywords. 

The eavesdropping scam first emerged in early 2022, and to curb the spread of the fraud campaign researchers used the company’s Adaptive AI. It allowed the researchers to flag over 90 percent of these calls from the beginning. 

The firm’s Real-Time Intelligence Service allows its Adaptive AI to identify the latest frauds based on their strategies, even on the very first call. In this campaign, phone numbers making the Eavesdropping Scam call were flagged in less than 12 call attempts on average and after successfully spotting and flagging these calls, researchers collaborated with a third-party service provider to shut down the initial operation in 24 hours.

“Catching this new and emerging scam tactic shows the power of Hiya’s Adaptive AI capabilities. Because our models are self-learning and focus on tactics, we can detect new scam risks in real-time and, in this case, shut down the operation before it reaches most users,” Hiya CEO Alex Algard stated. “At Hiya, our mission is to fully eradicate spam and fraud calls from the voice network, and the Eavesdropping Scam is the latest example of how we’re outsmarting scammers and protecting users.”

LAPSUS$ Group Targets SuperCare Health

 


SuperCare Health, a California-based respiratory care provider, has revealed a data breach that exposed the personal details of over 300,000 patients. Someone had access to specific systems between July 23 and July 27, 2021. By February 4, the company had assessed the scope of the data breach, learning the attackers had also acquired patient files including sensitive personal information such as:
  • Names, addresses, and birth dates.
  • A medical group or a hospital.
  • Along with health insurance details, a patient's account number and a medical record number are required. 
  • Data about one's health, such as diagnostic and treatment information. 
  • A small number of people's Social Security numbers and driver's license information were also revealed. 

"We have no reason to suspect any information was published, shared, or misused," according to SuperCare Health, but all possibly impacted patients should take extra security precautions to avoid identity theft and fraud. 

On March 25, the company notified all affected customers and implemented extra security steps to prevent the following breaches. The breach has affected 318,379 people, according to the US Department of Health and Human Services. Based on the number of people affected, this is presently among the top 50 healthcare breaches disclosed in the last two years. SuperCare Health further told, "We have reported the event to a Federal Bureau of Investigation and it will cooperate to help us identify and prosecute those involved." 

In the last several months, several healthcare institutions have revealed massive data breaches. Monongalia Health System (400,000 people affected), South Denver Cardiology Associates (287,000 people affected), Norwood Clinic (228,000 people affected), and Broward Health (228,000 people affected) are among the organizations on the list (1.3 million). 

Last week, the Health Department issued an advisory to healthcare groups, warning companies about the impact of a major cybercrime attack by the Lapsus$ cybercrime group. In recent months, the hackers have targeted Samsung, NVIDIA, Vodafone, Ubisoft, Globant, Microsoft, and Okta, among others. The organization takes information, often source code, and threatens to release it unless they are paid.

LAPSUS$ steals confidential information from organizations which have been hacked, then threatens to disclose or publish the information if the requested amount is not paid. The LAPSUS$ extortion ring, on the other hand, has abandoned the typical ransomware strategies of file encryption and computer lockout. 

According to the notice, the Health Department is aware of healthcare institutions which have been hacked as a result of the Okta attack; Okta has verified that more than 300 of its clients have been affected by the breach. In the light of the incident, Police in the United Kingdom have identified and charged several accused members of the Lapsus$ gang.

Malspam Campaign Spreads Novel META Info-stealer

 

The new META malware, a unique info-stealer malware that appears to be gaining popularity among hackers, has been discovered in a malspam campaign. 

META, along with Mars Stealer and BlackGuard, is one of the latest info-stealers whose administrators aim to profit from Raccoon Stealer's absence from the market, which has left many looking for a new platform.  META was initially reported on the Bleeping Computer last month when KELA experts cautioned of its quick entry into the TwoEasy botnet marketplace. The product is advertised as an upgraded version of RedLine and costs $125 per month for monthly users or $1,000 for unlimited lifetime use. 

META is currently being utilised in attacks, according to security researcher and ISC Handler Brad Duncan. It is being used to steal passwords stored in Chrome, Edge, and Firefox, as well as cryptocurrency wallets. The infection chain in this campaign uses the "standard" approach of sending a macro-laced Excel spreadsheet as an email attachment to potential victims' inboxes. The communications make fictitious financial transfer promises that aren't very persuasive or well-crafted, yet they can nonetheless be effective against a considerable percentage of recipients. 

A DocuSign bait is included in the spreadsheet files, urging the target to "allow content" in order to launch the malicious VBS macro in the background. The malicious script will download a variety of payloads, including DLLs and executables, when it runs. To avoid detection by the security software, some of the downloaded files are base64 encoded or have their bytes reversed. 

One of the samples Duncan collected, for example, has its bytes reversed in the original file. The full payload is eventually assembled on the machine under the name "qwveqwveqw.exe," which is most likely random, and a new registry entry for persistence is created. The EXE file generating activity to a command and control server at 193.106.191[.]162, even after the system reboots, is clear and persistent evidence of the infection, restarting the infection process on the affected machine. 

One thing to keep in mind is that META uses PowerShell to tell Windows Defender to exclude .exe files in order to protect its files from discovery.

US Agencies Disables Russia-linked "Cyclops Blink" Botnet

 

The US Department of Justice (DoJ), working alongside the FBI and various other authorities, has successfully neutralized Cyclops Blink, a modular botnet operated by a malicious group known as Sandworm, which has been linked to the Main Intelligence Directorate of the General Staff of the Armed Forces of the Russian Federation (GRU). 

In the court-authorized operation, the US agencies copied and removed malware from susceptible internet-linked firewall devices that Sandworm used for command and control (C2) of the underlying botnet. Although the operation did not involve access to the Sandworm malware on the thousands of underlying compromised devices worldwide, the DoJ said the disabling of the C2 mechanism severed those bots from the Sandworm C2 devices' control. 

 Cyclops Blink, which is believed to be the successor to VPNFilter, a botnet largely neglected after it was exposed by security experts in 2018 primarily targeted WatchGuard firewall appliances and ASUS routers, with the Sandworm group exploiting a previously discovered security loophole in WatchGuard's Firebox firmware as an initial access vector. 

"These network devices are often located on the perimeter of a victim's computer network, thereby providing Sandworm with the potential ability to conduct malicious activities against all computers within those networks," the DoJ added. 

WatchGuard Technologies issued a statement confirming it worked with the U.S. Justice Department to disrupt the botnet but did not disclose the number of devices affected - saying only that they represented "less than 1 percent of WatchGuard appliances.” 

The device manufacturer has published detection and remediation tools alongside recommendations for device owners to remove any malware infection and patch their devices to the latest versions of available firmware. 

The company has also updated its Cyclops Blink FAQs to provide details regarding CVE-2022-23176 (CVSS score: 8.8), which could "allow an unprivileged user with access to Firebox management to authenticate to the system as an administrator" and gain unauthorized remote access. Device manufacturer ASUS has also released firmware patches as of April 1, 2022, to mitigate the threat, recommending users to update to the latest version.

Anonymous : 900,000 Emails From Russian State Media Were Leaked

 

Anonymous which has been trying to target Russia since the invasion of Ukraine has reported more attacks against critical infrastructure sectors, including one which used an "improved" version of Russian Conti ransomware, and has called for the targeting of companies for proceeding to do business in Russia after the slaughter of Ukrainian civilians in Bucha. 

More than 900,000 emails by the All-State Television and Radio Broadcasting Company were purportedly leaked by the NB65 or Network Battalion 65 group, which is linked to the famed hacker collective Anonymous (VGTRK). 

DDoSecrets, a non-profit whistleblower site for news leaks, has rendered the 786.2 GB cache accessible to the public as a torrent file after NB65 apparently shared the hacked emails with them on Monday. In this regard, Emma Best, a co-founder of DDoSecrets said, "An unprecedented expose of state-owned media and propaganda which the Russian government views crucial to the state security."

A hacker organization called NB65 has been infiltrating Russian entities, collecting private data, and exposing it online for the past month, claiming the attacks are related to Russia's occupation of Ukraine. The emails, according to the Everyday Dot, span more than 20 years of correspondence and include discussions about daily operations as well as sanctions put on Russia by many other countries in reaction to its invasion of Ukraine.

Tensor, the Russian space program Roscosmos, and VGTRK, the state-owned Russian Television and Radio broadcaster, are among the Russian organizations said to have been targeted by the hacking group. The stated theft of 786.2 GB of data, comprising 900,000 emails and 4,000 files, was released on the DDoS Secrets website following the attack on VGTRK. Since the end of March, the NB65 hackers have been using a new tactic that is attacking Russian institutions with ransomware assaults. 

Conti's source code was released after the company allied with Russia in the Ukraine invasion, and a security researcher obtained 170,000 internal chat conversations and source code for the company's operation. 

Threat analyst Tom Malka first alerted to NB65's activities but was unable to locate a ransomware sample, and the hacking gang refused to provide it. This changed when a sample of the NB65's updated Conti ransomware executable was published to VirusTotal, letting us see how it functions. 

On VirusTotal, almost all antivirus vendors identify this sample as Conti, and Intezer Analyze discovered it shares 66% of the code with other Conti ransomware samples. When encrypting files, gives NB65's malware a run for its money.

The All-Russian State Television and Radio Broadcaster (VGTRK) is Russia's largest media conglomerate, with five national television channels, two major international networks, five radio shows, and over 80 regional television and radio networks under its umbrella. The ransomware will also leave R3ADM3.txt ransom notes all over the encrypted device, with threat actors accusing President Vladimir Putin of invading Ukraine for the attacks.