Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. technique: T1059 ✕

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  • Uncommon Linux shell command execution Informational 15 variations

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    N/A (single event)
    Deduplication:
    1 Day
    ATT&CK tactics: Execution (TA0002)
    ATT&CK techniques: Command and Scripting Interpreter: Unix Shell (T1059.004) Command and Scripting Interpreter (T1059)
    Required data: XDR Agent
    Detector tags: Shell Analytics
    Attacker's goals: An attacker may attempt to execute a malicious shell command on the system.
    Investigative actions: Check whether the executing process is benign and if this was a desired behavior as part of its normal execution flow. Check the executed shell command (and possible child processes) for malicious actions.

    Variations

    Uncommon Linux shell command execution by a BAS solution

    High overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution disabling firewall

    High overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution, possibly running LinPEAS

    High overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution using exploitation tool

    High overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution taking a screenshot

    Low overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution trying to gather information about the system

    Low overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution loading a kernel module

    Low overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution, possibly granting file execution permissions

    Low overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution running a network tool

    Low overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution setting a scheduled task

    Low overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution running a process kill command

    Low overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution with su/sudo elevation

    Informational overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution accessing history (e.g. bash history or login records)

    Informational overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution from a scripting language interpreter

    Informational overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden

    Uncommon Linux shell command execution executed from within a web server

    Informational overridden

    An unusual process execution of a shell command on Linux. This action may indicate possible exploitation or shell command execution via a backdoor. overridden