BIOCs

Browse the Cortex behavioral indicator of compromise (BIOC) detection rules.

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2 BIOCs match the current filters. tactic: TA0005 ✕ technique: T1490 ✕

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  • Modification of Windows boot configuration using bcdedit.exe Informational Tampering

    BCDEdit is a Microsoft Windows utility that can modify boot parameters. It is usually used as part of an attack to prevent repair of the affected system by disabling booting in recovery mode. It can also be used to stop Windows' Patchguard from objecting to the unsigned and insecure nature of a driver being loaded.

    Indicator:

    Process action type = execution AND target process cmd = *set* AND target process name = bcdedit.exe

    ATT&CK tactics: Defense Evasion (TA0005) Impact (TA0040)
    ATT&CK techniques: Rootkit (T1014) Inhibit System Recovery (T1490)
    Preventable:
    Yes
    Source:
    Palo Alto Networks
    Updated:
    2026-08-23
  • Tampering with the Windows System Restore configuration Low Tampering

    System Restore was disabled on the endpoint. In such a case, one may not be able to recover files in case of disaster. This may be initiated by the IT department, but also may indicate malicious activity such as ransomware.

    Indicator:

    Registry action type = set_registry_value , create_registry_key , delete_registry_value AND registry data = 1 AND registry key name = *Software\Microsoft\Windows Nt\SystemRestore\DisableSR Host host os = windows

    ATT&CK tactics: Defense Evasion (TA0005) Impact (TA0040)
    ATT&CK techniques: Rootkit (T1014) Inhibit System Recovery (T1490)
    Preventable:
    Yes
    Source:
    Palo Alto Networks
    Updated:
    2026-02-11