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Rare Remote Thread

Anvilogic Forge

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Summary
The 'Rare Remote Thread' detection rule identifies unusual behavior indicative of remote thread injection activities, which are often employed by advanced persistent threat (APT) actors to exploit vulnerabilities within endpoint processes. The rule is specifically looking for anomalies where remote threads are created under certain processes, indicating potential malicious intent. It utilizes data collected from Windows Sysmon, focusing on Event Code 8, which logs process creation events, along with parent process information to discern abnormal relationships between processes. By aggregating and filtering this data, the rule aims to identify scenarios where the count of distinct hosts or processes within a short timeframe remains low, suggesting a potentially malicious remote thread execution. The rule's effectiveness hinges on its ability to differentiate between benign and malicious behavior, understanding that false positives may occur but can be mitigated by contextual manual investigation. The detection benefits from association with known threat actors and malware types, enhancing its relevance and reliability in threat hunting and incident response scenarios.
Categories
  • Endpoint
Data Sources
  • Process
  • Windows Registry
ATT&CK Techniques
  • T1055
Created: 2024-02-09