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Rook

According to PCrisk, Rook is ransomware (an updated variant of Babuk) that prevents victims from accessing/opening files by encrypting them. It also modifies filenames and creates a text file/ransom note (HowToRestoreYourFiles.txt). Rook renames files by appending the .Rook extension. For example, it renames 1.jpg to 1.jpg.Rook, 2.jpg to 2.jpg.Rook.

Victims
9
 
First Discovered
2021-12-07
victim
Last Discovered
2022-01-08
victim
Inactive Since
4yrs
more than
Avg Delay
N/A
attack→claim
Infostealer
100.0%
victims with domain
Countries
1
hit
View Victims on World Map View Group Statistics

Known Locations (1)
Favicon Title Type Available Last Visit Server Info FQDN
favicon We Are Rook!!! No 2026-04-28T07:26:15 gamol6n6p2p4c3ad7gxmx3ur7wwdwlywebo2azv3vv5qlmjmole2zbyd.onion

Target
Top 5 Activity Sectors
  • Manufacturing 2
  • Technology 2
  • Healthcare 1
  • Business Services 1
  • Energy 1
Top 5 Countries
  • JP flag Japan 1

Heatmap

Ransom Notes (1)

YARA Rules (1)

Indicators of Compromise (IoCs) (2)
Email 2
Type IOC
Email rook@onionmail.org
Email securityrook@onionmail.org

Victims (9)
Logo
Discovered: 2022-01-08 (4y ago)
No description available
Logo
Discovered: 2021-12-28 (4y ago)
No description available
Logo
Discovered: 2021-12-28 (4y ago)
No description available
Logo
Discovered: 2021-12-26 (4y ago)
No description available
Logo
Discovered: 2021-12-18 (4y ago)
No description available
Logo
Discovered: 2021-12-18 (4y ago)
No description available
Logo
Discovered: 2021-12-14 (4y ago)
No description available
Logo
Discovered: 2021-12-14 (4y ago)
No description available
Logo
Discovered: 2021-12-07 (4y ago)
No description available