Analytics Alerts

Browse the Cortex analytics alert reference.

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1 alert match the current filters. tactic: TA0011 ✕ technique: T1572 ✕

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  • Unusual SSH Activity Informational 2 variations

    Unusual SSH activity was detected that involved a higher than usual volume of data transfer and an abnormally long session.

    Activation:
    14 Days
    Training:
    30 Days
    Test:
    2 Hours
    Deduplication:
    1 Day
    ATT&CK tactics: Command and Control (TA0011)
    ATT&CK techniques: Protocol Tunneling (T1572)
    Required data: Palo Alto Networks Firewall traffic Logs XDR Agent
    Attacker's goals: Attackers may use SSH or any similar utility to create a network tunnel to allow an attacker to covertly connect to an internal host.
    Investigative actions: Review the client IP/Agent for using known intelligence tools. Investigate the user accounts involved in the SSH connections to determine if credentials were compromised, Additionally examine logs for any unexpected data transfers or commands that may indicate malicious intent.

    Variations

    Unusual, long SSH activity with tunnel characteristics

    Low overridden

    Unusual SSH activity was detected that involved a high volume of data transfer and abnormal session duration. overridden

    Unusual SSH activity with tunnel characteristics to external destination

    Low overridden

    Unusual SSH activity was detected that involved a higher than usual volume of data transfer and an abnormally long session. overridden