Type
File Name
Location
Mespinoza was first discovered in November 2019 in enterprise cloud environments. Mespinoza is found in environments with a number of different names, including Mespinoza, Pysa, Mespinoza Doxware, etc. For a full list of all names, please see below.
Name
Mespinoza
First Seen
November 2019
Mespinoza is known to target specific file types. Below are all known file types that Mespinoza is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. Mespinoza 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 Mespinoza ransomware is known to change.
Suffixes
.locked, .pysa, .newversion
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 Mespinoza.
Type File Name Location file Readme.README EveryFolder
These are the names of the executables that contain the undetonated ransomware payload for Mespinoza.
Executables
51.exe, 628637.exe, 1.exe, Mespinoza.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 Mespinoza.
External Pages
