Analytics BIOC Medium
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Suspicious disablement of the Windows Firewall using PowerShell commands

The Windows Firewall has been disabled using PowerShell. Malware may turn it off to exfiltrate data and communicate with C2 servers.

Module:
Platform Analytics
Data source:
XDR Agent with eXtended Threat Hunting (XTH)
ATT&CK tactics: Defense Evasion (TA0005)
ATT&CK techniques: Impair Defenses: Disable or Modify System Firewall (T1562.004)
Attacker's goals:

An attacker may turn the firewall off to exfiltrate data and communicate with C2 servers.

Investigative actions:

Check Windows event logs to see the PowerShell command or script that was executed. Check whether the PowerShell command is benign or normal for the host and/or user performing it. Investigate the endpoint to determine if it's a legitimate process that disabled the firewall.

Test period:
N/A (single event)
Deduplication:
1 Day