Ransomware Research
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
- Ransomware Family
- KeyGroup777
- First Seen
- August 1, 2022
- Known Aliases
- Key Group
How KeyGroup777 Ransomware Works
File Encryption Patterns
KeyGroup777 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..keygroup777tg..keygroup..keygroup777Ransom Note and Payment Demands
After encrypting files, KeyGroup777 displays ransom notes demanding payment for file recovery:
HOW TO DECRYPT FILES.txtRansom message:
notes/HOW TO DECRYPT FILES.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with KeyGroup777 ransomware:
reshacker_setup3.exesvchost.exe69LGnXmwow3YdN3.exekeygroup1.exefusk.exeWARNEP.exe
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About This Analysis
This KeyGroup777 ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like KeyGroup777.
Last updated: July 30, 2025