Sigma rule: Silenttrinity Stager Msbuild Activity

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-08792be6bf62, updated 2022-10-05T00:00:00.000Z.

Rule

Title
Silenttrinity Stager Msbuild Activity
Status
test
Level
high
Author
Kiran kumar s, oscd.community
Date
2020-10-11
Modified
2022-10-05
File
rules/windows/network_connection/net_connection_win_silenttrinity_stager_msbuild_activity.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects a possible remote connections to Silenttrinity c2

Log source

product
windows
category
network_connection

Detection

selection:
    Image|endswith: '\msbuild.exe'
filter:
    DestinationPort:
        - 80
        - 443
    Initiated: 'true'
condition: selection and filter

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.execution
  • attack.stealth
  • attack.t1127.001

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/network_connection/net_connection_win_silenttrinity_stager_msbuild_activity.yml

Sources and licences

  • SigmaHQ

    "Silenttrinity Stager Msbuild Activity" by Kiran kumar s, oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/network_connection/net_connection_win_silenttrinity_stager_msbuild_activity.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Silenttrinity Stager Msbuild Activity",
entity page, dataset version ref-08792be6bf62, updated 2022-10-05T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/50e54b8d-ad73-43f8-96a1-5191685b17a4 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 50e54b8d-ad73-43f8-96a1-5191685b17a4, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.