GCP IAM deny policy creation

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	5 Days
Required Data	Gcp Audit Log
Detection Modules	Cloud
ATT&CK Tactic	Impact (TA0040)
ATT&CK Technique	Account Access Removal (T1531)
Severity	Low

Description

An identity created a GCP IAM deny policy.

Attacker's Goals

Interrupt availability of cloud resources by inhibiting access to accounts utilized by legitimate users.

Investigative actions

• Examine the details of the created deny policy.
• Review the recent activity of the identity.

Variations

Unusual GCP IAM deny policy creation

Synopsis

Field	Value
ATT&CK Tactic	Impact (TA0040)
ATT&CK Technique	Account Access Removal (T1531)
Severity	Medium

Description

An identity created a GCP IAM deny policy.

Attacker's Goals

Interrupt availability of cloud resources by inhibiting access to accounts utilized by legitimate users.

Investigative actions

• Examine the details of the created deny policy.
• Review the recent activity of the identity.