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
How MicroCop ransomware works
File encryption patterns
MicroCop modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, MicroCop displays ransom notes demanding payment for file recovery:
notes/200 dollars.txt
notes/README.txt
notes/wl.jpg
Technical indicators
Associated executable files
The following executable files are associated with MicroCop ransomware:
- 05_putty.exe_
- mircop.exe.dontrun
- putty.exe
- customs แบบฟอร์มกรมศุลกากร.doc
- y.exe
- 50eae30fd5bd7a0fbbaf64892bdda0bc_HsZGqoEWFIrVrQxS.exE
- x.exe
- c.exe
- 05daaa17505f3d97_aut5AE1.tmp
- tesu
- aut1.tmp
- ClickMe.exe
- CRYPT888 RASOMWARE NEW VERSION.BIN
- stub.exe
- alien ransomware builder cracked free.exe
- Document.pdf.exe
- myfile.exe
- Angry Lola Loud Ran$omware.exe
- KWFLPC.bin
About this analysis
This MicroCop ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like MicroCop.
Last updated: December 30, 2025
Elastio detects MicroCop inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify MicroCop across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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