Ransomware Research
About C0hen
C0hen
C0hen was first discovered in December 2019 in enterprise cloud environments.
| Name | C0hen |
|---|---|
| First Seen | December 2019 |
Targeting
Behavior of C0hen
C0hen is known to target specific file types. Below are all known file types that C0hen is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. C0hen updates the last modified date of the file it targets.
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Characteristics of C0hen
Here are some of the unique characteristics that are helpful to know about C0hen.
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 C0hen ransomware is known to change.
| Suffixes | .c0hen |
|---|
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 C0hen.
| Type | message |
|---|---|
| Location | OnceOnCompletion |
Executables
These are the names of the executables that contain the undetonated ransomware payload for C0hen.
| Executables | c0hen locker.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 C0hen.
| External Pages |
|
|---|
How Elastio can help
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Elastio is a cloud-native data resilience platform on AWS, providing robust security and assuring the recoverability of critical data in cloud environments.
Elastio protects data from ransomware and malware evading perimeter defenses and mitigates downtime, data loss, and reputational harm for businesses.
