Ransomware Research
Boris HT Ransomware
Boris HT is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2018, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Boris HT
- First Seen
- June 1, 2018
How Boris HT Ransomware Works
Targeted Files
Full extension -> [decode77@sfletter.com].boris Doesn't work without C&C
File Encryption Patterns
Boris HT modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..borisRansom Note and Payment Demands
After encrypting files, Boris HT displays ransom notes demanding payment for file recovery:
README.txtRansom message:
notes/README.txt
Note locations:
DesktopUserProfileTechnical Indicators
Associated Executable Files
The following executable files are associated with Boris HT ransomware:
svhost.exe
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About This Analysis
This Boris HT 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 Boris HT.
Last updated: July 30, 2025