GRR Rapid Response is an open-source framework for remote live forensics and incident investigation. It uses client agents installed on target machines and server infrastructure with a web interface and API. Analysts can search for and download files, inspect the Windows registry, access raw filesystems, and collect forensic artifacts. GRR also supports live remote memory analysis using YARA. Fleet hunts can be scheduled across groups of machines, including systems that are offline when a hunt is scheduled. Listed integrations and interfaces include Colab, Splunk, BigQuery, Elasticsearch, Timesketch, Turbinia, Python API clients, and an HTTPS REST API with OpenAPI definitions. The project is self-hosted and available under the Apache License 2.0 for 0.00 USD per free. The maker says client-server communication is encrypted against eavesdropping and impersonation, and approval controls can gate sensitive actions. GRR clients normally run as root and can read system data, so server access should be treated as root-level access to client machines. The core team does not provide a helpdesk or paid setup assistance.
Who it is for
GRR suits incident response teams that need remote forensic collection or fleet-wide investigations and can operate a self-hosted system. The maker notes that large enterprise deployments may require users to fix minor bugs, improve documentation, and engage with the project team.
What is good
- Supports remote file, registry, and forensic artifact collection.
- Runs live remote memory analysis using YARA.
- Fleet hunts can include machines offline at scheduling time.
- Offers approval controls for sensitive actions.
- Open source under Apache License 2.0.
What to know first
- Clients normally run as root and can read system data.
- Server access carries root-equivalent access to client machines.
- Core team does not offer a helpdesk.
- No paid setup assistance is offered.
Verdict
GRR provides remote forensic tools and fleet hunts as a self-hosted, open-source framework. Its client privileges make server access a high-trust responsibility, and support does not include a helpdesk or paid setup assistance.
GRR Rapid Response plans and pricing
All plansCompared on incident response software
- Evidence tracking
- Yes
- API access
- Yes
- Deployment options
- self_hosted
