Anomalous Linux Compiler Activity
editAnomalous Linux Compiler Activity
editLooks for compiler activity by a user context which does not normally run compilers. This can be the result of ad-hoc software changes or unauthorized software deployment. This can also be due to local privilege elevation via locally run exploits or malware activity.
Rule type: machine_learning
Machine learning job: v3_linux_rare_user_compiler
Machine learning anomaly threshold: 50
Severity: low
Risk score: 21
Runs every: 15 minutes
Searches indices from: now-45m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Linux
- Threat Detection
- ML
- Resource Development
Version: 100 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 8.5.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positives
editUncommon compiler activity can be due to an engineer running a local build on a production or staging instance in the course of troubleshooting or fixing a software issue. ==== Threat mapping
Framework: MITRE ATT&CKTM
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Tactic:
- Name: Resource Development
- ID: TA0042
- Reference URL: https://attack.mitre.org/tactics/TA0042/
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Technique:
- Name: Obtain Capabilities
- ID: T1588
- Reference URL: https://attack.mitre.org/techniques/T1588/
Rule version history
edit- Version 100 (8.5.0 release)
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- Formatting only
- Version 5 (8.4.0 release)
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- Formatting only
- Version 4 (8.3.0 release)
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- Formatting only
- Version 3 (7.15.0 release)
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- Formatting only
- Version 2 (7.12.0 release)
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- Formatting only