Ransomware Research
FRS Ransomware
FRS is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- FRS
- First Seen
- March 1, 2018
How FRS Ransomware Works
Targeted Files
FRSRAMSOMWARE, FRSDecryptor, FRS_TEMP folders in the root of SystemDrive Only renames https://app.any.run/tasks/eaed9dca-778e-4238-a05b-c71de50a7039/
File Encryption Patterns
FRS modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..FRSRansom Note and Payment Demands
After encrypting files, FRS displays ransom notes demanding payment for file recovery:
READ_ME_HELP_ME.txtRansom message:
notes/READ_ME_HELP_ME.txt
Note locations:
DesktopRansom message:
notes/READ_ME_HELP_ME.png
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with FRS ransomware:
Ransom.Win32.FRSCryptor.exeFRS RansomwareFRS.exefrs.exe09e290740a9d75174578138b6cf27e72.frsransomware.exe
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About This Analysis
This FRS 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 FRS.
Last updated: July 30, 2025