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MediumΣSigmaHQ

Google Cloud Service Account Modified

Identifies when a service account is modified in Google Cloud.

ATT&CK coverage

This detection is not mapped to any ATT&CK technique.

Detection requirements

Log source product: gcp
Log source service: gcp_audit

What the source says

What fires this without an attack behind it

Service Account being modified may be performed by a system administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
Service Account modified from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.

References

https://cloud.google.com/iam/docs/reference/rest/v1/projects.serviceAccounts

Tagged by the source as

attack.impact

Detection logic

Published to signed-in readers

The query as its source wrote it, its canonical form, and the content hash that pins this exact revision.

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Provenance

Where this detection came from, and what you may do with it.

At source: Open at source
Written by: Austin Songer @austinsonger
Licence: Detection Rule License 1.1Read the licence
Published: Aug 26, 2026
Version: 1

See also

3,144 from SigmaHQ 3,618 rated medium