An Azure Firewall policy deletion

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

3 Hours

Required Data

  • Requires:
    • Azure Audit Log

Detection Modules

Cloud

ATT&CK Tactic

Defense Evasion (TA0005)

ATT&CK Technique

Impair Defenses (T1562)

Severity

Low

Description

An Azure Firewall policy was deleted. An attacker might use this technique to disable network defenses.

Attacker's Goals

Exfiltrate information, network persistence of a service/resource.

Investigative actions

  • Check which subnets or specific IP addresses were affected by the change.
  • Check which services were being leveraged after the changes by used protocols/traffic.