Type
File Name
Location
Nemesis was first discovered in May 2017 in enterprise cloud environments. Nemesis is found in environments with a number of different names, including Nemesis NextGen, etc. For a full list of all names, please see below.
Name
Nemesis
First Seen
May 2017
Nemesis is known to target specific file types. Below are all known file types that Nemesis is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. Nemesis unknown 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 Nemesis ransomware is known to change.
Suffixes
./.[a-z0-9]{4,5}$/, .YOUR_LAST_CHANCE, .WECANHELP, .nemesis, .t5019, .aax55
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 Nemesis.
Type File Name Location file ### DECRYPT MY FILES ###.txt file _RESTORE FILES_.txt EveryFolder
These are the names of the executables that contain the undetonated ransomware payload for Nemesis.
Executables
svchost.exe_, sample.exe, lock.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 Nemesis.
External Pages
