Exchange DKIM signing configuration disabled

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 Day

Required Data

  • Requires:
    • Office 365 Audit

Detection Modules

Identity Threat Module

ATT&CK Tactic

ATT&CK Technique

Severity

Low

Description

A user disabled an Exchange DomainKeys Identified Mail (DKIM) signing configuration. DKIM helps ensure that emails are authorized and not spoofed.

Attacker's Goals

An attacker is attempting to evade detection.

Investigative actions

  • Follow further actions done by the account.
  • Verify that the configuration change was expected.
  • Check for a possible phishing campaign on the organization.

Variations

A recently configured Exchange DKIM signing configuration was disabled

Synopsis

ATT&CK Tactic

ATT&CK Technique

Severity

Informational

Description

A user disabled an Exchange DomainKeys Identified Mail (DKIM) signing configuration. DKIM helps ensure that emails are authorized and not spoofed.

Attacker's Goals

An attacker is attempting to evade detection.

Investigative actions

  • Follow further actions done by the account.
  • Verify that the configuration change was expected.
  • Check for a possible phishing campaign on the organization.