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Ransomware Research
Bitpaymer Ransomware
Bitpaymer is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: WPEncrypt, FriedEx, Bitpaymer NextGen.
Quick Facts
- Ransomware Family
- Bitpaymer
- First Seen
- July 1, 2017
- Known Aliases
- WPEncryptFriedExBitpaymer NextGen
How Bitpaymer Ransomware Works
Targeted Files
https://app.any.run/tasks/d4ccb2ae-6485-4c2f-99ab-26229af0f11b/
File Encryption Patterns
Bitpaymer modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..locked
..LOCK
..lmtgr0up
Ransom Note and Payment Demands
After encrypting files, Bitpaymer displays ransom notes demanding payment for file recovery:
{origin_filename}.readme_txt
Ransom message:
notes/DOC1.docx.readme_txt
Note locations:
EveryFile
{origin_filename}.lmtgr0up_readme
Ransom message:
notes/descript.ion.lmtgr0up_readme
Note locations:
EveryFile
HOW_TO_DECRYPT.txt
Ransom message:
notes/HOW_TO_DECRYPT.txt
Note locations:
RootDiscs
Desktop
Technical Indicators
Associated Executable Files
The following executable files are associated with Bitpaymer ransomware:
apisetstub
mafgvag
Xrj.exe
yZj:exe
0Wk7JMR:exe
AFPtT:exe
SjwFY.exe
3IkZZ0:exe
ZZi2x:exe
841913.exe
Bit Paymer.exe
BitPaymer.exe
Ransomware 1.exe
DUe1bLM.exe
5MgqQ.exe
EqMz:exe
YpoiVa:exe
U7zj:exe
NlsData081a
NlsData081a.dll
2EwLi.exe
NONLMB~1.EXE
W0MJTB~1.locked:bin
TieringEngineService.exe
3AQAQH~1:bin
BAG9LA~1.EXE
mzj8Si:bin
N6F1OD~1.EXE
VMNRG2~1:bin
WASpotLife.DLL
msdtc.exe
2PMa:exe
PrkgN:exe
Fqj9g5v:exe
351:exe
4RnuBxi:exe
Elastio Can Help You
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About This Analysis
This Bitpaymer 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 Bitpaymer.
Last updated: July 30, 2025