Ransomware Research

IRIS

IRIS was first discovered in April 2024 in enterprise cloud environments.

Name

IRIS

 

First Seen

April 2024

Targeting

Behavior of IRIS

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

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

Details

Characteristics of IRIS

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 IRIS ransomware is known to change.

Suffixes

/.[0-9a-z]{4}$/

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 IRIS.

Type

File Name

Location

file

read_it.txt

EveryFolder

file

READ-ME.txt

Desktop

screenshot

Desktop

Executables

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

Executables

MainRunnerqwa.exe, MAINRU~2.EXE, svchost.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 IRIS.

External Pages

  • mailto:iriswaresupport@proton.me

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