Ransomware Research

RU_Ransom

RU_Ransom was first discovered in February 2022 in enterprise cloud environments. RU_Ransom is found in environments with a number of different names, including RURansom, etc. For a full list of all names, please see below.

Name

RU_Ransom

 

First Seen

February 2022

Targeting

Behavior of RU_Ransom

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

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

Details

Characteristics of RU_Ransom

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 RU_Ransom ransomware is known to change.

Suffixes

.fs_invade

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 RU_Ransom.

Type

File Name

Location

file

Полномасштабное_кибервторжение.txt

EveryFolder

Executables

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

Executables

RURansom.exe, RURansom.bin

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 RU_Ransom.

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