Ransomware Research
DoppelPaymer Ransomware
DoppelPaymer is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2019, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: DoppelPaymer Doxware, Doppeled.
Quick Facts
- Ransomware Family
- DoppelPaymer
- First Seen
- June 1, 2019
- Known Aliases
- DoppelPaymer DoxwareDoppeled
How DoppelPaymer Ransomware Works
Targeted Files
Requieres parameters to run -> p1q135no.exe QWD5MRg95gUEfGVSvUGBY84h https://www.zscaler.com/blogs/security-research/doppelpaymer-continues-cause-grief-through-rebranding
File Encryption Patterns
DoppelPaymer modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..locked..doppeledRansom Note and Payment Demands
After encrypting files, DoppelPaymer displays ransom notes demanding payment for file recovery:
{origin_filename}.readme2unlock.txtRansom message:
notes/DOC1.docx.readme2unlock.txt
Note locations:
EveryFile{origin_filename}.how2decrypt.txtNote locations:
EveryFileTechnical Indicators
Associated Executable Files
The following executable files are associated with DoppelPaymer ransomware:
WASpotLife.DLLmsdtc.exeDoppelPaymer.exeDoppel3.exedoppelpaymer.exep1q135no.sfx.exe
Elastio Can Help You
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About This Analysis
This DoppelPaymer 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 DoppelPaymer.
Last updated: July 30, 2025