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Hello,

Can I create a rule that will alert me every time a new user is created in gcp? how?

Thank you.

Hi @Roni11,

Here is a YARA-L rule that utilizes Google Cloud Audit Logs and should alert you when a new user is created in the IAM section of the Google Cloud Console.

This rule should provide you with a starting point. I encourage you to test and customize this rule to fit your needs.

rule google_cloud_user_creation { meta: author = "Google Cloud Security" description = "Detects when a new user account is created in the Google Cloud Console." mitre_attack_tactic = "Persistence" mitre_attack_technique = "Create Account: Cloud Account" mitre_attack_url = "https://attack.mitre.org/techniques/T1136/003/" mitre_attack_version = "v14.1" type = "Alert" data_source = "GCP Cloud Audit" platform = "GCP" severity = "Low" priority = "Low" events: $gcp.metadata.log_type = "GCP_CLOUDAUDIT" $gcp.metadata.event_type = "USER_CREATION" $gcp.security_result.action = "ALLOW" outcome: $risk_score = max(35) $mitre_attack_tactic = "Persistence" $mitre_attack_technique = "Create Account: Cloud Account" $mitre_attack_technique_id = "T1136.003" condition: $gcp }