Denis

MITRE ATT&CK: S0354 View on attack.mitre.org

Aliases: Denis

First seen
2014-01-01 00:00:00
Malware type
backdoor, trojan
Family
Malware family
Operating systems
windows
Related IoCs
6
Last IoC activity
2026-08-17 22:37:42
Profile updated
2026-07-07 13:19:55

Targeted industries: government-and-public-sector media-and-entertainment technology-and-telecommunications

Targeted regions: country_code:vn country_code:ph country_code:la country_code:kh

Context

Denis is a Windows backdoor and Trojan used by APT32. Denis shares several similarities to the SOUNDBITE backdoor and has been used in conjunction with the Goopy backdoor.

Detection coverage

  • 615 Sigma rules

Malware & tools used

  • File Deletion (attack-pattern)
  • System Checks (attack-pattern)
  • Ingress Tool Transfer (attack-pattern)
  • Process Hollowing (attack-pattern)
  • System Information Discovery (attack-pattern)
  • Query Registry (attack-pattern)
  • Deobfuscate/Decode Files or Information (attack-pattern)
  • Command Obfuscation (attack-pattern)
  • System Network Configuration Discovery (attack-pattern)
  • Standard Encoding (attack-pattern)
  • Archive via Library (attack-pattern)
  • Hijack Execution Flow (attack-pattern)
  • File and Directory Discovery (attack-pattern)
  • Native API (attack-pattern)
  • PowerShell (attack-pattern)
  • System Owner/User Discovery (attack-pattern)
  • DLL (attack-pattern)
  • Obfuscated Files or Information (attack-pattern)
  • Windows Command Shell (attack-pattern)
  • DNS (attack-pattern)

Used by threat actors

Reports & references

  • cybereason.com — Operation Cobalt Kitty Apt (report)
  • MITRE ATT&CK — S0354 (report)

External references