KeyGroup777 Ransomware
KeyGroup777 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2022, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Key Group.
Quick facts
How KeyGroup777 ransomware works
File encryption patterns
KeyGroup777 modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, KeyGroup777 displays ransom notes demanding payment for file recovery:
notes/HOW TO DECRYPT FILES.txt
Technical indicators
Associated executable files
The following executable files are associated with KeyGroup777 ransomware:
- reshacker_setup3.exe
- svchost.exe
- 69LGnXmwow3YdN3.exe
- keygroup1.exe
- fusk.exe
- WARNEP.exe
About this analysis
This KeyGroup777 ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like KeyGroup777.
Last updated: December 30, 2025
Elastio detects KeyGroup777 inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify KeyGroup777 across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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