3mo ago · hacker-news
Iranian state-backed threat actor Nimbus Manticore is conducting cyber espionage operations across the Middle East, Africa, and South Asia using a new Windows backdoor called NightLedger and two custom WebSocket tunnelers, BridgeHead and ArcBridge. The group leverages phishing lures and fake videoconferencing pages to deliver payloads, which are executed via DLL side-loading. NightLedger enables reconnaissance, command execution, file operations, and screenshot capture, while BridgeHead and ArcBridge establish covert relay tunnels through victim systems for operator-controlled traffic.