Microsoft.Security/alertsSuppressionRules/write

CSP: Azure

Tactics:

Defense Evasion

Techniques:

T1562

Tags:

Azure Microsoft Defender for Cloud

Event

Creates or updates a suppression rule in Microsoft Defender for Cloud, hiding matching security alerts.

Security Context

• Impairing defenses allows adversaries to operate freely by removing security controls that would otherwise detect or block their activity.
• Tampering with cloud security services blinds defenders to threats and may indicate an adversary is preparing for further malicious activity.

Log Source

Azure Activity Log

Sample Event

MITRE ATT&CK Mapping

Tactics: Defense Evasion

Techniques:

• T1562 — Impair Defenses — Adversaries may maliciously modify components of a victim environment in order to hinder or disable defensive mechanisms. This not only involves impairing preventative defenses, such as firewalls and anti-virus, but also detection capabilities that defenders can use to audit activity and identify...