Monday, December 6, 2021

Decryptor for AtomSilo and LockFile ransomware

On Oct 17, 2021, Jiří Vinopal published information about a weakness in the AtomSilo ransomware and that it is possible to decrypt files without paying the ransom. Slightly later, he also analyzed another ransomware strain, LockFile. We prepared our very own free Avast decryptor for both the AtomSilo and LockFile strains.

Limitation of the decryptor

During the decryption process, the Avast AtomSilo decryptor relies on a known file format in order to verify that the file was successfully decryp…

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