Threat Group Cards: A Threat Actor Encyclopedia
Archived: 2026-04-05 19:00:58 UTC
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 Tool: Tunnus
Names
Tunnus
QUIETCANARY
Kapushka
Category Malware
Type Backdoor
Description
(Kaspersky) A .NET-based backdoor with the ability to run commands or perform file
actions on an infected system and send the results to its command-and-control servers.
So far, the infrastructure has been built using compromised sites with vulnerable
Wordpress installations. According to the company’s telemetry, Tunnus activity started
in March and remained active.
Information
<https://www.kaspersky.com/about/press-releases/2019_the-garden-of-forking-paths-sophisticated-apts-diversify-toolsets>
<https://www.mandiant.com/resources/blog/turla-galaxy-opportunity>
MITRE ATT&CK <https://attack.mitre.org/software/S1076>
Malpedia <https://malpedia.caad.fkie.fraunhofer.de/details/win.quietcanary>
Last change to this tool card: 27 August 2024
Download this tool card in JSON format
All groups using tool Tunnus
Changed Name Country Observed
APT groups
  Tomiris [Unknown] 2020  
  Turla, Waterbug, Venomous Bear 1996-2024  
https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=ab2cec4c-4871-4495-8dc5-eb129e7516a3
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2 groups listed (2 APT, 0 other, 0 unknown)
Source: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=ab2cec4c-4871-4495-8dc5-eb129e7516a3
https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=ab2cec4c-4871-4495-8dc5-eb129e7516a3
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