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Cyber-Attack

New ESXiArgs Ransomware Variant Emerges After CISA Releases Decryptor Tool

After the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a decryptor for affected victims to recover from ESXiArgs ransomware attacks, the threat actors have bounced back with an updated version that encrypts more data. The emergence of the new variant was reported by a system administrator on an online forum, where another participant stated […]

Researchers Uncover Obfuscated Malicious Code in PyPI Python Packages

Four different rogue packages in the Python Package Index (PyPI) have been found to carry out a number of malicious actions, including dropping malware, deleting the netstat utility, and manipulating the SSH authorized_keys file. The packages in question are aptx, bingchilling2, httops, and tkint3rs, all of which were collectively downloaded about 450 times before they […]

Gootkit Malware Adopts New Tactics to Attack Healthcare and Finance Firms

The Gootkit malware is prominently going after healthcare and finance organizations in the U.S., U.K., and Australia, according to new findings from Cybereason. The cybersecurity firm said it investigated a Gootkit incident in December 2022 that adopted a new method of deployment, with the actors abusing the foothold to deliver Cobalt Strike and SystemBC for […]

Russian Hacker Pleads Guilty to Money Laundering Linked to Ryuk Ransomware

A Russian national on February 7, 2023, pleaded guilty in the U.S. to money laundering charges and for attempting to conceal the source of funds obtained in connection with Ryuk ransomware attacks. Denis Mihaqlovic Dubnikov, 30, was arrested in Amsterdam in November 2021 before he was extradited from the Netherlands in August 2022. He is […]

Linux Variant of Clop Ransomware Spotted, But Uses Faulty Encryption Algorithm

The first-ever Linux variant of the Clop ransomware has been detected in the wild, but with a faulty encryption algorithm that has made it possible to reverse engineer the process. “The ELF executable contains a flawed encryption algorithm making it possible to decrypt locked files without paying the ransom,” SentinelOne researcher Antonis Terefos said in […]

VMware Finds No Evidence of 0-Day in Ongoing ESXiArgs Ransomware Spree

VMware on Monday said it found no evidence that threat actors are leveraging an unknown security flaw, i.e., a zero-day, in its software as part of an ongoing ransomware attack spree worldwide. “Most reports state that End of General Support (EoGS) and/or significantly out-of-date products are being targeted with known vulnerabilities which were previously addressed […]

GuLoader Malware Using Malicious NSIS Executables to Target E-Commerce Industry

E-commerce industries in South Korea and the U.S. are at the receiving end of an ongoing GuLoader malware campaign, cybersecurity firm Trellix disclosed late last month. The malspam activity is notable for transitioning away from malware-laced Microsoft Word documents to NSIS executable files for loading the malware. Other countries targeted as part of the campaign […]

Prilex PoS Malware Evolves to Block Contactless Payments to Steal from NFC Cards

The Brazilian threat actors behind an advanced and modular point-of-sale (PoS) malware known as Prilex have reared their head once again with new updates that allow it to block contactless payment transactions. Russian cybersecurity firm Kaspersky said it detected three versions of Prilex (06.03.8080, 06.03.8072, and 06.03.8070) that are capable of targeting NFC-enabled credit cards, […]

New Report Reveals NikoWiper Malware That Targeted Ukraine Energy Sector

The Russia-affiliated Sandworm used yet another wiper malware strain dubbed NikoWiper as part of an attack that took place in October 2022 targeting an energy sector company in Ukraine. “The NikoWiper is based on SDelete, a command line utility from Microsoft that is used for securely deleting files,” cybersecurity company ESET revealed in its latest […]

British Cyber Agency Warns of Russian and Iranian Hackers Targeting Key Industries

The U.K. National Cyber Security Centre (NCSC) on Thursday warned of spear-phishing attacks mounted by Russian and Iranian state-sponsored actors for information-gathering operations. “The attacks are not aimed at the general public but targets in specified sectors, including academia, defense, government organizations, NGOs, think tanks, as well as politicians, journalists, and activists,” the NCSC said. […]

Chinese Hackers Utilize Golang Malware in DragonSpark Attacks to Evade Detection

Organizations in East Asia are being targeted by a likely Chinese-speaking actor dubbed DragonSpark while employing uncommon tactics to go past security layers. “The attacks are characterized by the use of the little known open source SparkRAT and malware that attempts to evade detection through Golang source code interpretation,” SentinelOne said in an analysis published […]

Emotet Malware Makes a Comeback with New Evasion Techniques

The Emotet malware operation has continued to refine its tactics in an effort to fly under the radar, while also acting as a conduit for other dangerous malware such as Bumblebee and IcedID. Emotet, which officially reemerged in late 2021 following a coordinated takedown of its infrastructure by authorities earlier that year, has continued to […]

Gamaredon Group Launches Cyberattacks Against Ukraine Using Telegram

The Russian state-sponsored cyber espionage group known as Gamaredon has continued its digital onslaught against Ukraine, with recent attacks leveraging the popular messaging app Telegram to strike military and law enforcement sectors in the country. “The Gamaredon group’s network infrastructure relies on multi-stage Telegram accounts for victim profiling and confirmation of geographic location, and then […]

Earth Bogle Campaign Unleashes NjRAT Trojan on Middle East and North Africa

An ongoing campaign dubbed Earth Bogle is leveraging geopolitical-themed lures to deliver the NjRAT remote access trojan to victims across the Middle East and North Africa. “The threat actor uses public cloud storage services such as files[.]fm and failiem[.]lv to host malware, while compromised web servers distribute NjRAT,” Trend Micro said in a report published […]

Hackers Can Abuse Legitimate GitHub Codespaces Feature to Deliver Malware

New research has found that it is possible for threat actors to abuse a legitimate feature in GitHub Codespaces to deliver malware to victim systems. GitHub Codespaces is a cloud-based configurable development environment that allows users to debug, maintain, and commit changes to a given codebase from a web browser or via an integration in […]

New Backdoor Created Using Leaked CIA’s Hive Malware Discovered in the Wild

Unidentified threat actors have deployed a new backdoor that borrows its features from the U.S. Central Intelligence Agency (CIA)’s Hive multi-platform malware suite, the source code of which was released by WikiLeaks in November 2017. “This is the first time we caught a variant of the CIA Hive attack kit in the wild, and we […]

Beware: Tainted VPNs Being Used to Spread EyeSpy Surveillanceware

Tainted VPN installers are being used to deliver a piece of surveillanceware dubbed EyeSpy as part of a malware campaign that started in May 2022. It uses “components of SecondEye – a legitimate monitoring application – to spy on users of 20Speed VPN, an Iranian-based VPN service, via trojanized installers,” Bitdefender said in an analysis. […]