Kaspersky Restore Utility May 2026

File Carving. The Kaspersky Restore Utility scans the raw disk surface—bypassing the file system entirely. It looks for file headers, footers, and structural patterns (magic bytes for JPEG, DOCX, PDF, etc.). When ransomware encrypts a file, it usually writes the ciphertext over the original plaintext. However, due to how SSDs and HDDs handle wear leveling, TRIM commands, and slack space, fragments of the original file often remain.

But physically, on a spinning disk or flash storage, “writing back” doesn’t always overwrite the exact same physical sectors. Sometimes the OS writes to a new location and marks the old sectors as “deleted” (but not erased). kaspersky restore utility

Most people know Kaspersky for its antivirus engine (and the geopolitical noise surrounding it). Few know about a small, standalone tool quietly sitting in their installation directory that can perform digital necromancy. File Carving

Keep a copy of restore.exe on a USB drive before you get infected. If you wait until after, downloading it onto the compromised machine might overwrite the very sectors you need to recover.

The utility is devastatingly effective against ransomware that uses "rename + encrypt + delete original" patterns. It is nearly useless against ransomware that explicitly overwrites the original sectors with random data before deletion.

Most ransomware variants use asymmetric encryption (AES + RSA). Without the private key, you cannot mathematically reverse the encryption. This tool does not try.