HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050
A newly discovered espionage implant has been using a hijacked Microsoft 365 calendar as its command channel, planting operator instructions...
implant
New Gaslight macOS Malware Uses Prompt Injection to Disrupt AI-Assisted Analysis
Ravie LakshmananJun 25, 2026AI Security / Malware A previously undocumented Rust-based macOS implant and information stealer has been found to...
Quasar Linux RAT Steals Developer Credentials for Software Supply Chain Compromise
Ravie LakshmananMay 08, 2026Linux / DevOps A previously undocumented Linux implant codenamed Quasar Linux RAT (QLNX) is targeting developers' systems...
Quasar Linux (QLNX) – A Silent Foothold in the Supply Chain: Inside a Full-Featured Linux RAT With Rootkit, PAM Backdoor, Credential Harvesting Capabilities
Conclusion The QLNX implant was built for long-term stealth and credential theft. What makes it particularly dangerous is not any...
Technical Analysis of SnappyClient
IntroductionIn December 2025, Zscaler ThreatLabz identified a new command-and-control (C2) framework implant that we track as SnappyClient, which was delivered...
