Backdoor
Chinese hackers target telcos with new Linux, Windows malware
A Chinese cyber-espionage campaign has been targeting telecommunications providers with newly discovered Linux and Windows malware dubbed Showboat and JFMBackdoor, respectively. The operation has been active since at least mid-2022 and targeted organizations across the Asia Pacific and parts of the Middle East. It was attributed to the Calypso threat group, also tracked as Red […]
Fake Claude AI website delivers new ‘Beagle’ Windows malware
A fake version for the Claude AI website offers a malicious Claude-Pro Relay download that pushes a previously undocumented backdoor for Windows named Beagle. The threat actor advertises Claude-Pro as a “high-performance relay service designed specifically for Claude-Code” developers. The fake website is a simplistic attempt at mimicking the legitimate site for the popular Claude large language […]
New stealthy Quasar Linux malware targets software developers
A previously undocumented Linux implant named Quasar Linux (QLNX) is targeting developers’ systems with a mix of rootkit, backdoor, and credential-stealing capabilities. The malware kit is deployed in development and DevOps environments in npm, PyPI, GitHub, AWS, Docker, and Kubernetes. This could enable supply-chain attacks where the threat actor publishes malicious packages on code distribution […]
Popular WordPress redirect plugin hid dormant backdoor for years
The Quick Page/Post Redirect plugin, installed on more than 70,000 WordPress sites, had a backdoor added five years ago that allows injecting arbitrary code into users’ sites. The malware was uncovered by Austin Ginder, the founder of WordPress hosting provider Anchor, who found it after 12 infected sites on his fleet triggered a security alert. Quick Page/Post Redirect […]
Threat actor uses Microsoft Teams to deploy new “Snow” malware
A threat group tracked as UNC6692 uses social engineering to deploy a new, custom malware suite named “Snow,” which includes a browser extension, a tunneler, and a backdoor. Their goal is to steal sensitive data after deep network compromise through credential theft and domain takeover. According to Google’s Mandiant researchers, the attacker uses “email bombing” tactics to […]
Firestarter malware survives Cisco firewall updates, security patches
Cybersecurity agencies in the U.S. and U.K. are warning about a custom malware called Firestarter persisting on Cisco Firepower and Secure Firewall devices running Adaptive Security Appliance (ASA) or Firepower Threat Defense (FTD) software. The backdoor has been attributed to a threat actor that Cisco Talos tracks internally as UAT-4356, known for cyberespionage campaigns, including ArcaneDoor. […]
WordPress plugin suite hacked to push malware to thousands of sites
More than 30 WordPress plugins in the EssentialPlugin package have been compromised with malicious code that allows unauthorized access to websites running them. A malicious actor planted the backdoor code last year but only recently started pushing it to users via updates, generating spam pages and causing redirects, as per the instructions received from the […]
Smart Slider updates hijacked to push malicious WordPress, Joomla versions
Hackers hijacked the update system for the Smart Slider 3 Pro plugin for WordPress and Joomla, and pushed a malicious version with multiple backdoors. The developer says that only the Pro version 3.5.1.35 of the plugin is affected and recommends switching immediately to the latest version, currently 3.5.1.36, or 3.5.1.34 and earlier. Apart from installing backdoors in […]
Backdoored Telnyx PyPI package pushes malware hidden in WAV audio
TeamPCP hackers compromised the Telnyx package on the Python Package Index today, uploading malicious versions that deliver credential-stealing malware hidden inside a WAV file. The supply-chain attack was observed by application security firms Aikido, Socket, and Endor Labs, and was attributed to TeamPCP based on the same exfiltration pattern and RSA key seen in previous incidents caused by the […]
TeamPCP deploys Iran-targeted wiper in Kubernetes attacks
The TeamPCP hacking group is targeting Kubernetes clusters with a malicious script that wipes all machines when it detects systems configured for Iran. The threat actor is responsible for the recent supply-chain attack on the Trivy vulnerability scanner, and also an NPM-based campaign dubbed ‘CanisterWorm,’ which started on March 20. Selective destruction payload Researchers at application security […]