"Ars Technica Targeted in Unprecedented Malware Campaign with Advanced Obfuscation"

Security firm Mandiant reported a never-before-seen malware campaign that used Ars Technica and Vimeo to serve second-stage malware, employing obfuscation techniques to cover its tracks. The campaign, attributed to threat actor UNC4990, involved embedding malicious strings in benign content on the websites, which were automatically retrieved by devices infected with the first-stage malware. This novel approach, along with previous techniques used by UNC4990, demonstrates a sophisticated and evolving threat landscape in cybersecurity.