Ransomware Research
1337 Ransomware
1337 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- 1337
- First Seen
- November 1, 2023
How 1337 Ransomware Works
File Encryption Patterns
1337 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..1337Ransom Note and Payment Demands
After encrypting files, 1337 displays ransom notes demanding payment for file recovery:
yourhope.txtRansom message:
notes/yourhope.txt
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with 1337 ransomware:
system32.exesvchost.exe
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About This Analysis
This 1337 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 1337.
Last updated: July 30, 2025