Ransomware Research
Dangerous Ransomware
Dangerous is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on March 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Dangerous
- First Seen
- March 1, 2017
How Dangerous Ransomware Works
Targeted Files
The name of current sample should be DANGEROUS_RANSOMW.exe troll.txt contains the list of encrypted files
File Encryption Patterns
Dangerous modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..trollRansom Note and Payment Demands
After encrypting files, Dangerous displays ransom notes demanding payment for file recovery:
troll.txtRansom message:
notes/troll.txt
Note locations:
UserProfileTechnical Indicators
Associated Executable Files
The following executable files are associated with Dangerous ransomware:
DANGEROUS_RANSOMW.exe
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About This Analysis
This Dangerous 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 Dangerous.
Last updated: July 30, 2025