Ransomware Research
SystemCrypter Ransomware
SystemCrypter is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2019, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- SystemCrypter
- First Seen
- June 1, 2019
How SystemCrypter Ransomware Works
Targeted Files
https://www.bleepingcomputer.com/forums/t/699344/system-crypter-ransomware-crypted-support-topic/
File Encryption Patterns
SystemCrypter modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..crypted..crypterRansom Note and Payment Demands
After encrypting files, SystemCrypter displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
LoginTechnical Indicators
Associated Executable Files
The following executable files are associated with SystemCrypter ransomware:
Crypter.exe
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About This Analysis
This SystemCrypter 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 SystemCrypter.
Last updated: July 30, 2025