Ransomware Research

About CheckMate

CheckMate

CheckMate was first discovered in May 2022 in enterprise cloud environments.

Name CheckMate
First Seen May 2022
Targeting

Behavior of CheckMate

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

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

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Characteristics of CheckMate

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

Suffixes

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 CheckMate ransomware is known to change.

Suffixes.checkmate

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 CheckMate.

Typefile
File Name!CHECKMATE_DECRYPTION_README

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 CheckMate.

External Pages
  • btc:bc75c720f835b523443219eb823aa898
  • telegram:checkmate_team
How Elastio can help

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