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Crimson RAT

Also known as: SEEDOOR, Scarimson

It was first discovered in 2017 and has since been used to attack organizations around the world. The malware is often distributed through phishing emails or by exploiting vulnerabilities in outdated security software. Once Crimson RAT is installed on a computer, it can be used to steal data, spy on users, and even take control of the infected computers.

Some of the features of Crimson RAT include:

Remote control of infected computers

Data theft, such as passwords, files, and emails

User spying

Takeover of infected computers

Locking of infected computers

Extortion of payments

Linked Threat Actors

Operation C-Major

C2 Infrastructure

Hosting/VPS 50%
ISP/Residential 50%

Last 7 days

May 24, 2026
C2 Hosts: 2

Further Reading