The SIEM app is now a part of the Elastic Security solution.
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MsBuild Making Network Connectionsedit
Identifies MsBuild.exe making outbound network connections. This may indicate
adversarial activity as MsBuild is often leveraged by adversaries to execute
code and evade detection.
Rule type: query
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Windows
Version: 4 (version history)
Added (Elastic Stack release): 7.6.0
Last modified (Elastic Stack release): 7.9.1
Rule authors: Elastic
Rule license: Elastic License
Rule queryedit
event.category:network and event.type:connection and process.name:MSBuild.exe and not destination.ip:(127.0.0.1 or "::1")
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Execution
- ID: TA0002
- Reference URL: https://attack.mitre.org/tactics/TA0002/
-
Technique:
- Name: Trusted Developer Utilities
- ID: T1127
- Reference URL: https://attack.mitre.org/techniques/T1127/
Rule version historyedit
- Version 4 (7.9.1 release)
-
- Formatting only
- Version 3 (7.9.0 release)
-
-
Updated query, changed from:
event.action:"Network connection detected (rule: NetworkConnect)" and process.name:MSBuild.exe and not destination.ip:(127.0.0.1 or "::1")
-
- Version 2 (7.7.0 release)
-
-
Updated query, changed from:
event.action:"Network connection detected (rule: NetworkConnect)" and process.name:MSBuild.exe and not destination.ip:("127.0.0.1" or "::1")
-