Backdoor
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 […]
AI-generated Slopoly malware used in Interlock ransomware attack
A new malware strain dubbed Slopoly, likely created using generative AI tools, allowed a threat actor to remain on a compromised server for more than a week and steal data in an Interlock ransomware attack. The breach started with a ClickFix ruse, and in later stages of the attack, the hackers deployed the Slopoly backdoor as […]
Microsoft Teams phishing targets employees with A0Backdoor malware
Hackers contacted employees at financial and healthcare organizations over Microsoft Teams to trick them into granting remote access through Quick Assist and deploy a new piece of malware called A0Backdoor. The attacker relies on social engineering to gain the employee’s trust by first flooding their inbox with spam and then contacting them over Teams, pretending to […]
Chinese state hackers target telcos with new malware toolkit
A China-linked advanced persistent threat actor tracked as UAT-9244 has been targeting telecommunication service providers in South America since 2024, compromising Windows, Linux, and network-edge devices. According to Cisco Talos researchers, the adversary is closely associated with the FamousSparrow and Tropic Trooper hacker groups, but is tracked as a separate activity cluster. This assessment has high confidence and is […]
Chinese cyberspies breached dozens of telecom firms, govt agencies
Google’s Threat Intelligence Group (GTIG), Mandiant, and partners disrupted a global espionage campaign attributed to a suspected Chinese threat actor that used SaaS API calls to hide malicious traffic in attacks targeting telecom and government networks. The campaign has been active since at least 2023 and has impacted 53 organizations in 42 countries, with suspected infections […]