Ransomware Research

About CheckMail7


CheckMail7 was first discovered in January 2020 in enterprise cloud environments.

Name CheckMail7
First Seen January 2020

Behavior of CheckMail7

CheckMail7 is known to target specific file types. Below are all known file types that CheckMail7 is known to infect.

In some cases, ransomware will update the modified date, when it encrypts files. CheckMail7 updates the last modified date of the file it targets.

Learn More

Characteristics of CheckMail7

Here are some of the unique characteristics that are helpful to know about CheckMail7.


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 CheckMail7 ransomware is known to change.


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 CheckMail7.

File Namewarning.txt

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 CheckMail7.

External Pages
  • mailto:checkmail7@protonmail.com
How Elastio can help

Don’t let ransomware
take over your backups.

Elastio’s Cyber Recovery as a Service (CRaaS) software helps you detect, recover, and protect from ransomware attacks. The Elastio platform combines data security, protection and active ransomware recovery technology, offering you the most complete solution available. Gain full workload visibility, automated recovery testing, lower cloud costs and simplicity with Elastio’s cyber recovery solution.

Scroll to Top