Type
File Name
Location
Netwalker was first discovered in September 2019 in enterprise cloud environments. Netwalker is found in environments with a number of different names, including Mailto, Koko, NetWalker Doxware, etc. For a full list of all names, please see below.
Name
Netwalker
First Seen
September 2019
Netwalker is known to target specific file types. Below are all known file types that Netwalker is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. Netwalker 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 Netwalker ransomware is known to change.
Suffixes
/.[A-F0-9a-f]{4,6}$/
Not all ransomware leaves a note. However, some ransomware leaves the infected party instructions on what the user should do to get rid of the ransomware, or satisfy the ransom. This often involves transferring money, often bitcoin or another cryptocurrency to a designated wallet.
Below are the type(s) of notes, content, and typical locations where Elastio has found ransom notes from Netwalker.
Type File Name Location file /^[A-F0-9a-f]{5,6}-Readme.txt$/ EveryFolder
These are the names of the executables that contain the undetonated ransomware payload for Netwalker.
Executables
212fe44ced.exe, 2c08f5ca36.exe, 364f57fd.exe, f1cd57bf.exe, 54101b5d.exe, 22.exe, 1c34c545.exe, 99e00f24.exe, e52eea98.exe, ccddc65d.exe, 96c196eb.exe, wwllww.vexe, 430f3cda.exe, 722b6392.exe, ef3ff3f0.exe, 2001.exe, myvtfile.exe, CORONAVIRUS_COVID-19.vbs, all.ps1, Ransomware.ps1, dante.ps1, Ransomware (1).ps1, ned2.ps1, pay.ps1, oopsNO.ps1, skyfall_user wilsonk_wilsonk_ste.txt.ps1, Based, grips.exe, rdp__bd__60__1905346__1607274786.exe, rdp__bd__60__1905346__1607274786.bin, ntwlk.ps1, CORONAVIRUS_COVID-19.vbs (myvtfile.exe), Bedeva Hack.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 Netwalker.
External Pages
