Ransomware Research
1337-Locker Ransomware
1337-Locker is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- 1337-Locker
- First Seen
- May 1, 2017
How 1337-Locker Ransomware Works
Targeted Files
Ecnrypts filenames Biblio.mdb -> o0c0^#p.adr
File Encryption Patterns
1337-Locker modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..adrRansom Note and Payment Demands
After encrypting files, 1337-Locker displays ransom notes demanding payment for file recovery:
Ransom message:
notes/note.txt
Note locations:
OnceOnCompletionTechnical Indicators
Associated Executable Files
The following executable files are associated with 1337-Locker ransomware:
20170510_pdf.exe
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About This Analysis
This 1337-Locker 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-Locker.
Last updated: July 30, 2025