This post breaks the two-year silence of this blog, showcasing a selection of memory corruption vulnerabilities in Bitdefender’s anti-virus engine.
The goal of binary packing is to compress or obfuscate a binary, usually to save space/bandwidth or to evade malware analysis. A packed binary typically contains a compressed/obfuscated data payload. When the binary is executed, a loader decompresses this payload and then jumps to the actual entry point of the (inner) binary.
Article Link: https://landave.io/2020/11/bitdefender-upx-unpacking-featuring-ten-memory-corruptions/