Threats Tagged 'api abuse'

A sophisticated infection chain has been discovered that installs CastleRAT malware without leaving traces on disk. The attack uniquely abuses the Deno runtime as a malicious framework, combining social engineering, steganography, and in-memory execution to evade detection. The process involves tricking users into executing a command, installing Deno, running obfuscated JavaScript, and decoding a payload hidden in a JPEG image. CastleRAT then gains total control, performing host fingerprinting, keylogging, clipboard hijacking, digital identity theft, and audio/video surveillance. This campaign demonstrates the evolution of malware towards invisibility and the need for advanced endpoint behavioral monitoring to detect such threats.

MediumMalwareUnited StatesUnited KingdomGermany+8#clickfix#social engineering#castlerat

A global espionage campaign targeting telecommunications and government organizations across four continents has been disrupted. The threat actor, UNC2814, is suspected to be linked to China and has been active since 2017. The campaign utilized a sophisticated backdoor called GRIDTIDE, which leveraged Google Sheets API for command and control. The attackers compromised 53 victims in 42 countries, with suspected infections in 20 more. GRIDTIDE's capabilities include executing shell commands, file transfers, and evading detection by disguising traffic as legitimate cloud API requests. The disruption involved terminating attacker-controlled cloud projects, disabling infrastructure, and revoking API access.

MediumMalwareUnited StatesChinaIndia+12#cyber espionage#google sheets#gridtide