Win32.Ransom.Conti ransomware fails to encrypt non PE files that have a “.exe” in the filename. Creating specially crafted file names successfully evaded encryption for this malware sample.
Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/99e55ce93392068c970384ab24a0e13d.txt
Contact: [email protected]
Backup media: infosec.exchange/@malvuln
Vulnerability: Crypto Logic Flaw
Description: Conti ransomware FAILS to encrypt non PE files that have a ".exe" in the filename. Creating specially crafted file names successfully evaded encryption for this malware sample, others variants are unknown as they were not yet tested.
Tested successfully in a virtual machine environment.
Vuln ID: MVID-2022-0662
Video PoC URL:
Create files with ".exe" within the filename.
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