Windows Firewall Disabled via netsh advfirewall

ATT&CK techniques

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects netsh being used to turn off the Windows Firewall through the advfirewall set allprofiles state off command. Phobos ransomware disables the firewall to ease lateral movement and unhindered communication before encryption. Programmatic firewall disabling is a defense-evasion action uncommon outside deliberate administration.

Reporting behind it

Related detections9 linkedT1685 — drag to rearrange

Suspicious Windows Defender Exclusion Added for ProgramData (via process_creation)

Malicious Known Vulnerable Driver Load for BYOVD Attack

Malicious Qilin EDR Killer BYOVD Driver Load

Malicious Windows Defender Exclusion Added (via registry_set)

Suspicious Termination of Windows Security Health UI via taskkill

Malicious Forced Deletion of Security Vendor Kernel Drivers by ValleyRAT

Suspicious Defender Exclusion Added via Add-MpPreference by GachiLoader

Suspicious TCC AppleEvents Reset via tccutil

Malicious Defender Real Time Monitoring Disabled via Set-MpPreference

Windows Firewall Disabled via netsh advfirewall

Pivot detection · T1685 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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