The Linux system firewall was disabled

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-10-08
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

10 Minutes

Required Data

  • Requires:
    • XDR Agent

Detection Modules

Detector Tags

ATT&CK Tactic

Defense Evasion (TA0005)

ATT&CK Technique

Impair Defenses: Disable or Modify System Firewall (T1562.004)

Severity

Low

Description

The system firewall was disabled.

Attacker's Goals

Exfiltrate data or move laterally in the organization.

Investigative actions

  • Examine the command to understand which ip or port were affected.
  • Check the communication allowed by the created firewall rule.