Ransomware Research
MicroCop Ransomware
MicroCop is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2016, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: MirCop, Crypt888, MicroCop NextGen.
Quick Facts
- Ransomware Family
- MicroCop
- First Seen
- June 1, 2016
- Known Aliases
- MirCopCrypt888MicroCop NextGen
How MicroCop Ransomware Works
Targeted Files
For some group of files adds prefix, for other suffixes
File Encryption Patterns
MicroCop modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..bhacksPrefixes added to encrypted files:
Lock.Ransom Note and Payment Demands
After encrypting files, MicroCop displays ransom notes demanding payment for file recovery:
200 dollars.txtRansom message:
notes/200 dollars.txt
Note locations:
TempREADME.txtRansom message:
notes/README.txt
Note locations:
DesktopRansom message:
notes/wl.jpg
Note locations:
DesktopTechnical Indicators
Associated Executable Files
The following executable files are associated with MicroCop ransomware:
05_putty.exe_mircop.exe.dontrunputty.execustoms แบบฟอร์มกรมศุลกากร.docy.exe50eae30fd5bd7a0fbbaf64892bdda0bc_HsZGqoEWFIrVrQxS.exEx.exec.exe05daaa17505f3d97_aut5AE1.tmptesuaut1.tmpClickMe.exeCRYPT888 RASOMWARE NEW VERSION.BINstub.exealien ransomware builder cracked free.exeDocument.pdf.exemyfile.exeAngry Lola Loud Ran$omware.exeKWFLPC.bin
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About This Analysis
This MicroCop 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 MicroCop.
Last updated: July 30, 2025