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Re:Deceiving Windows Defender: The Big Stack Bypass
on Saturday December 31, 2022 @11:44AM (#34198127)
> These tools scan the executables without executing them, don't they?
No, modern AV software executes unknown binaries in an emulated system environment. Defender has an x86-to-safe-x86 JIT compiler built in to make this more performant.
Re:Deceiving Windows Defender: The Big Stack Bypass
on Saturday December 31, 2022 @07:19AM (#34195804)
Interesting. Presumably this breaks the emulated environment in which Defender is running the executable, and when this fails Defender assumes the executable is safe rather than suspicious?