BIOCs

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

Severity ▾
Category ▾

3 BIOCs match the current filters. technique: T1222 ✕

Download CSV Show ATT&CK heatmap
  • Administrator obtains access rights to a file using icacls.exe Informational File Privilege Manipulation

    Grant an administrator file access privileges.

    Indicator:

    Process action type = execution AND target process cmd = *grant*admin* AND target process name = icacls.exe

    ATT&CK tactics: Defense Evasion (TA0005)
    ATT&CK techniques: File and Directory Permissions Modification (T1222)
    Preventable:
    Yes
    Source:
    Palo Alto Networks
    Updated:
    2026-02-11
  • Changing permissions or ownership of a file or folder Informational Evasion

    Changing the permissions or ownership of a file or folder can be done to get access to sensitive data.

    Indicator:

    Process action type = execution AND target process name = attrib.exe , cacls.exe , takeown.exe AND target process cmd = *-r* , *grant* , */f*

    ATT&CK tactics: Defense Evasion (TA0005)
    ATT&CK techniques: File and Directory Permissions Modification (T1222)
    Preventable:
    Yes
    Source:
    Palo Alto Networks
    Updated:
    2026-02-11
  • Permissive file privileges were granted Informational Evasion

    Setting readable, writable, and executable permissions for all users may pose a major security risk.

    Indicator:

    Process action type = execution AND target process cmd = *chmod*777* , *chmod*a+*

    ATT&CK tactics: Defense Evasion (TA0005)
    ATT&CK techniques: File and Directory Permissions Modification (T1222)
    Preventable:
    Yes
    Source:
    Palo Alto Networks
    Updated:
    2026-08-23