Type
File Name
Location
CrySiS was first discovered in February 2016 in enterprise cloud environments.
Name
CrySiS
First Seen
February 2016
CrySiS is known to target specific file types. Below are all known file types that CrySiS is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. CrySiS 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 CrySiS ransomware is known to change.
Suffixes
.CrySis
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 CrySiS.
Type File Name Location file How to decrypt your files.txt file How to decrypt your data.txt Desktop
These are the names of the executables that contain the undetonated ransomware payload for CrySiS.
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 CrySiS.
External Pages
