New addition to Windows Defender exclusion list

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

1 Hour

Required Data

  • Requires:
    • XDR Agent

Detection Modules

ATT&CK Tactic

Defense Evasion (TA0005)

ATT&CK Technique

Impair Defenses: Disable or Modify Tools (T1562.001)

Severity

Low

Description

Windows Defender keeps the exclusion list in the Registry, and any addition to it will cause it to ignore a process.

Attacker's Goals

Gain code execution on the host and evade security controls.

Investigative actions

Check whether the executing process is benign, and if this was a desired behavior as part of its normal execution flow.

Variations

New addition to Windows Defender exclusion list from an unsigned process

Synopsis

ATT&CK Tactic

Defense Evasion (TA0005)

ATT&CK Technique

Impair Defenses: Disable or Modify Tools (T1562.001)

Severity

Medium

Description

Windows Defender keeps the exclusion list in the Registry, and any addition to it will cause it to ignore a process.

Attacker's Goals

Gain code execution on the host and evade security controls.

Investigative actions

Check whether the executing process is benign, and if this was a desired behavior as part of its normal execution flow.