Ransomware Research

ZV

ZV was first discovered in June 2025 in enterprise cloud environments.

Name

ZV

 

First Seen

June 2025

Targeting

Behavior of ZV

ZV is known to target specific file types. Below are all known file types that ZV is known to infect.

In some cases, ransomware will update the modified date, when it encrypts files. ZV updates the last modified date of the file it targets.

Details

Characteristics of ZV

Suffixes

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 ZV ransomware is known to change.

Suffixes

.ZV

Ransomware Notes

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 ZV.

Type

File Name

Location

file

zelOFF.txt

RootDiscs, Desktop

file

Info.hta

StartUp, Roaming

Executables

These are the names of the executables that contain the undetonated ransomware payload for ZV.

Executables

uwinhost.exe.bin, uwinhost.exe

External Pages

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 ZV.

External Pages

  • mailto:zelenskyy.net@mailum.com
  • mailto:spiderweb@cock.li

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