Nightdoor

MITRE ATT&CK: S1147 View on attack.mitre.org

Aliases: NetMM, Suzafk, Nightdoor

Malware type
backdoor
Family
Malware family
Operating systems
windows
Profile updated
2026-07-07 13:23:57

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

Context

Nightdoor is a backdoor exclusively associated with Daggerfly operations. Nightdoor uses common libraries with MgBot and MacMa, linking these malware families together.

Detection coverage

  • 1 YARA rules
  • 189 Sigma rules

Malware & tools used

  • Process Discovery (attack-pattern)
  • Scheduled Task (attack-pattern)
  • Local Storage Discovery (attack-pattern)
  • Windows Command Shell (attack-pattern)
  • Hijack Execution Flow (attack-pattern)
  • System Checks (attack-pattern)
  • System Time Discovery (attack-pattern)
  • System Network Configuration Discovery (attack-pattern)
  • File Deletion (attack-pattern)
  • System Owner/User Discovery (attack-pattern)
  • System Information Discovery (attack-pattern)
  • Deobfuscate/Decode Files or Information (attack-pattern)
  • Application Layer Protocol (attack-pattern)
  • Web Service (attack-pattern)

Used by threat actors

Detection rules

  • MALPEDIA_Win_Nightdoor_Auto (yara-rule)

Reports & references

  • Broadcom/Symantec — Daggerfly Espionage Updated Toolset (report)
  • ESET — Evasive Panda Leverages Monlam Festival Target Tibetans (report)
  • ESET — Cloudscout Evasive Panda Scouting Cloud Services (report)
  • malpedia.caad.fkie.fraunhofer.de — Win.Nightdoor (report)
  • MITRE ATT&CK — S1147 (report)

External references