Ransomware Research

About NOOSE

NOOSE

NOOSE was first discovered in January 2024 in enterprise cloud environments.

Name NOOSE
First Seen January 2024

Genealogy

To better understand NOOSE, we can trace it’s origins. Below is a snapshot of NOOSE’s genealogy.

Ryuk.Net » NOOSE
Targeting

Behavior of NOOSE

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

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

Learn More

Characteristics of NOOSE

Here are some of the unique characteristics that are helpful to know about NOOSE.

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 NOOSE ransomware is known to change.

Suffixes.NOOSE

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 NOOSE.

Typefile
File NameOPEN_ME.txt
LocationEveryFolder
Typescreenshot
LocationDesktop

Executables

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

ExecutablesChaos Ransomware Builder v4.exe, 8262284.exe, 2024-01-27_0e2fa137fc4dd4f99e4cda506bc8b645_wannacry, 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 NOOSE.

External Pages
  • mailto:malignant@tuta.io
How Elastio can help

Don’t let ransomware
take over your data.

Elastio is a cloud-native data resilience platform on AWS, providing robust security and assuring the recoverability of critical data in cloud environments.


Elastio protects data from ransomware and malware evading perimeter defenses and mitigates downtime, data loss, and reputational harm for businesses.