Ransomware Research
Jerd Ransomware
Jerd is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2023, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Jerd
- First Seen
- March 1, 2023
How Jerd Ransomware Works
Targeted Files
Full extension -> .id-C63F241F.[jerd@420blaze.it].j3rd
File Encryption Patterns
Jerd modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..j3rdRansom Note and Payment Demands
After encrypting files, Jerd displays ransom notes demanding payment for file recovery:
info.txtRansom message:
notes/info.txt
Note locations:
RootDiscsDesktopInfo.htaRansom message:
notes/Info.hta
Note locations:
StartUpTechnical Indicators
Associated Executable Files
The following executable files are associated with Jerd ransomware:
executable.exe
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About This Analysis
This Jerd 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 Jerd.
Last updated: July 30, 2025