Type
File Name
Location
C0hen was first discovered in December 2019 in enterprise cloud environments.
Name
C0hen
First Seen
December 2019
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.
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
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 File Name Location message OnceOnCompletion
These are the names of the executables that contain the undetonated ransomware payload for C0hen.
Executables
c0hen locker.exe
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
