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Potential Suspicious File Edit

Elastic Detection Rules

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Summary
The 'Potential Suspicious File Edit' rule is designed to monitor for the creation of temporary swap files (.swp) in Linux environments, which are generated when users edit files using text editors. Since attackers may exploit file editing to modify critical system files for persistence or privilege escalation, this detection rule targets specific directories and paths associated with sensitive configurations, including user account information and system files. It categorizes alerts based on abnormal file creation events triggered by specific actions, prompting security analysts to investigate potential unauthorized changes. The rule aims to enhance monitoring for actions such as file editing, as legitimate file edits may generate alerts, necessitating detailed assessment processes to discern genuine threats from routine administrative tasks. Furthermore, it integrates with various threat frameworks to provide contextual insights regarding potential attacker techniques and tactics.
Categories
  • Endpoint
  • Linux
Data Sources
  • File
  • Sensor Health
  • Process
  • Application Log
ATT&CK Techniques
  • T1037
  • T1037.004
  • T1543
  • T1543.002
  • T1574
  • T1574.006
  • T1548
  • T1548.003
Created: 2023-07-25