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Ransomware Research
Smrss32 Ransomware
Smrss32 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2016, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Smrss32
- First Seen
- July 1, 2016
How Smrss32 Ransomware Works
Targeted Files
https://www.bleepingcomputer.com/forums/t/623132/smrss32-encrypted-ransomware-help-support-how-to-decryptbmp/
File Encryption Patterns
Smrss32 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..encrypted
Ransom Note and Payment Demands
After encrypting files, Smrss32 displays ransom notes demanding payment for file recovery:
_HOW_TO_Decrypt.bmp
Note locations:
EveryFolder
Ransom message:
notes/CpGzF1AXEAAD1Cy.jpg
Note locations:
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with Smrss32 ransomware:
smrss32.exe
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About This Analysis
This Smrss32 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 Smrss32.
Last updated: July 30, 2025