Search Evasion Techniques
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Virtualization/Sandbox Evasion: User Activity Based Checks Defense Evasion [Mitre]
Adversaries may employ various user activity checks to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core …
BuildCommDCBAndTimeoutA Sandbox Evasion
This technique uses a BuildCommDCBAndTimeoutsA API call to determine if the malware is detonating in a sandbox. Normally, a bogus device string would cause this API call to fail. However, some malware sandbox environments may emulate in a way that allows the API call to succeed even when given a bogus device string.