OpenSUpdater Malware Hides Inside 7-Zip Installers to Evade Detection

Threat actors behind the OpenSUpdater malware family are concealing a reflective loader inside recompiled 7-Zip self-extracting archive components, allowing malicious code to blend into otherwise legitimate-looking installers and evade conventional triage. Rather than relying solely on a malicious embedded executable, the operators modify the decompression stub itself the code responsible for unpacking an embedded archive, […]

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