Crimson RAT - Threat Group Cards: A Threat Actor Encyclopedia
Archived: 2026-04-05 13:04:29 UTC
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 Tool: Crimson RAT
Names
Crimson RAT
Crimson
SEEDOOR
Scarimson
MSIL
MSIL/Crimson
Category Malware
Type Backdoor
Description
Crimson is malware used as part of a campaign known as Operation Transparent Tribe
that targeted Indian diplomatic and military victims.
Information
MITRE ATT&CK Malpedia AlienVault OTX Last change to this tool card: 30 December 2022
Download this tool card in JSON format
All groups using tool Crimson RAT
Changed Name Country Observed
APT groups
https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=12f48fde-94b3-4bae-a6cd-90b31e77c31f
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Gorgon Group 2017-Jul 2020  
  Transparent Tribe, APT 36 2013-Mar 2025  
2 groups listed (2 APT, 0 other, 0 unknown)
Source: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=12f48fde-94b3-4bae-a6cd-90b31e77c31f
https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=12f48fde-94b3-4bae-a6cd-90b31e77c31f
Page 2 of 2