Tag: AhnLab ASEC
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ACRStealer’s Stealthy Evolution: New Variants Use Heaven’s Gate & Low-Level NTAPIs to Evade Detection
ACRStealer, a notorious information-stealing malware, has once again come under the spotlight following a series of enhancements that have significantly improved its resilience against detection and analysis. Over the past year—particularly since the beginning of 2025—its activity has markedly intensified, with recent iterations showcasing a rapid adaptation to modern defensive mechanisms. Initially observed by experts…