Ransomware Research

About Bitpaymer


Bitpaymer was first discovered in July 2017 in enterprise cloud environments. Bitpaymer is found in environments with a number of different names, including WPEncrypt, FriedEx, Bitpaymer NextGen, etc. For a full list of all names, please see below.

Name Bitpaymer
  • WPEncrypt
  • FriedEx
  • Bitpaymer NextGen
First Seen July 2017


To better understand Bitpaymer, we can trace it’s origins. Below is a snapshot of Bitpaymer’s genealogy.

BitPaymer » DoppelPaymer

Behavior of Bitpaymer

Bitpaymer is known to target specific file types. Below are all known file types that Bitpaymer is known to infect.

In some cases, ransomware will update the modified date, when it encrypts files. Bitpaymer updates the last modified date of the file it targets.

Learn More

Characteristics of Bitpaymer

Here are some of the unique characteristics that are helpful to know about Bitpaymer.


Some ransomware will change or append a suffix to the end of the file after they are encrypted, including changing the extension of a file. Here are some of the possible suffixes that Bitpaymer ransomware is known to change.

Suffixes.locked, .LOCK

Ransomware Notes

Not all ransomware leaves a note. However, some ransomware leaves the infected party instructions on what the user should do to get rid of the ransomware, or satisfy the ransom. This often involves transferring money, often bitcoin or another cryptocurrency to a designated wallet.

Below are the type(s) of notes, content, and typical locations where Elastio has found ransom notes from Bitpaymer.

File Name{origin_filename}.readme_txt
LocationRootDiscs, Desktop


These are the names of the executables that contain the undetonated ransomware payload for Bitpaymer.

Executablesapisetstub, mafgvag, Xrj.exe, yZj:exe, 0Wk7JMR:exe, AFPtT:exe, SjwFY.exe, 3IkZZ0:exe, ZZi2x:exe, 841913.exe, Bit Paymer.exe, Trojan.Ransom.BytPaymer.exe, Trojan.Ransom.BitPaymer.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

External Pages

Ransomware often links to external pages such as payment pages, telegram contacts, etc. Below are some of the URLs Elastio has found to be associated with Bitpaymer.

External Pages
  • http://qmnmrba4s4a3py6z.onion
  • http://xau4lkbipznut2ya.onion
  • http://2anwyjsh7qgbuc5i.onion
  • mailto:15010050@tutamail.com
  • mailto:17042102@tutamail.com
  • mailto:43rgwe723e94@tutanota.com
  • mailto:1173022@protonmail.com
  • mailto:stephenjoffe@protonmail.com
  • mailto:petchermcneill@protonmail.com
  • mailto:petermcneill@tutanota.com
  • mailto:loryestside@protonmail.com
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