Invisible Execution: Hiding Malware with Unwind Metadata Manipulation

Original text by klezVirus

The article introduces BYOUD (Bring Your Own Unwind Data), a novel stack-evasion technique designed to bypass modern endpoint detection and response (EDR) systems that rely on call-stack inspection to identify malicious execution. Traditional stack-spoofing techniques modify return addresses or construct synthetic stack frames to disguise the origin of a call. However,…

https://core-jmp.org/2026/03/invisible-execution-hiding-malware-with-unwind-metadata-manipulation/