Detectionhightest

History File Deletion

Detects events in which a history file gets deleted, e.g. the ~/bash_history to remove traces of malicious activity

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Launch

Florian Roth (Nextron Systems)Created Mon Jun 20Updated Thu Sep 151182f3b3-e716-4efa-99ab-d2685d04360flinux

Log Source

LinuxProcess Creation

ProductLinux← raw: linux

CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic

detection:
    selection:
        Image|endswith:
            - '/rm'
            - '/unlink'
            - '/shred'
    selection_history:
        - CommandLine|contains:
              - '/.bash_history'
              - '/.zsh_history'
        - CommandLine|endswith:
              - '_history'
              - '.history'
              - 'zhistory'
    condition: all of selection*