Explanation:

GCP SCC detect new user agent that access to the GCP project.

*User Agent: 

In computing, a user agent is any software, acting on behalf of a user, which "retrieves, renders and facilitates end-user interaction with Web content." A user agent is therefore a special kind of software agent. Some prominent examples of user agents are web browsers and email readers.


Pattern:

{
	"anomalousSoftware": {
		"anomalousSoftwareClassification": ["firebase-cli"],
		"callerUserAgent": "FirebaseCLI/7.4.0,gzip(gfe)",
		"principalEmail": "xx@xx.com",
		"notSeenInLast": "2592000s",
		"typicalUserAgents": ["gcloud"],
		"rawUserAgent": "FirebaseCLI/7.4.0,gzip(gfe)",
		"callerIp": "xx.xx.xx.xx"
	}
}



Resolution:

Verify if the reported user agent is valid and used by the principal email.

If is not, it could mean that hacker is trying to access to this resource. 

Yes / NoAction
Yes, it is a valid accessUpdate the JIRA ticket to be false positive.
No, it is not a valid access

The principal email could be compromised.

Revoke the permission from GCP IAM and escalate to the *security team.