Microsoft 365 DLP policy disabled or removed

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

Defense Evasion (TA0005)

ATT&CK Technique

Severity

Informational

Description

A user disabled or removed a Microsoft 365 data loss prevention (DLP) policy, which may indicate DLP monitoring evasion.

Attacker's Goals

An attacker is attempting to bypass Microsoft 365 Data Loss Prevention (DLP) policies.

Investigative actions

  • Follow further actions done by the account.
  • Verify that the configuration change was expected.
  • Look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).
  • Monitor the user's activity for any access to sensitive data or data exfiltration.
  • Investigate if any other security policies have been changed or removed.

Variations

Rare Microsoft 365 DLP policy removal

Synopsis

ATT&CK Tactic

Defense Evasion (TA0005)

ATT&CK Technique

Severity

Low

Description

A user disabled or removed a Microsoft 365 data loss prevention (DLP) policy, which may indicate DLP monitoring evasion.

Attacker's Goals

An attacker is attempting to bypass Microsoft 365 Data Loss Prevention (DLP) policies.

Investigative actions

  • Follow further actions done by the account.
  • Verify that the configuration change was expected.
  • Look for signs that the user account is compromised (e.g. abnormal logins, unusual activity).
  • Monitor the user's activity for any access to sensitive data or data exfiltration.
  • Investigate if any other security policies have been changed or removed.