Detectionhightest

Shell Execution GCC - Linux

Detects the use of the "gcc" utility to execute a shell. Such behavior may be associated with privilege escalation, unauthorized command execution, or to break out from restricted environments.

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Launch

Li Ling, Andy Parkidomo, Robert Rakowski, Blake Hartstein (Bloomberg L.P.)Created Mon Sep 029b5de532-a757-4d70-946c-1f3e44f48b4dlinux

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_img:
        Image|endswith:
            - '/c89'
            - '/c99'
            - '/gcc'
        CommandLine|contains: '-wrapper'
    selection_cli:
        CommandLine|contains:
            - '/bin/bash,-s'
            - '/bin/dash,-s'
            - '/bin/fish,-s'
            - '/bin/sh,-s'
            - '/bin/zsh,-s'
    condition: all of selection_*