Detecting Suspicious Authentication in SIEM 27
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What happened
An event related to how to guides was observed. Alerts were generated and sent to the SOC for review. This write up captures the context for analysts.
Detection ideas
- Search logs for rare destinations.
- Alert on sign ins from anonymous networks.
- Enrich indicators with OSINT sources.
- Forward events to your SIEM and build dashboards.
Response steps
- Isolate the affected endpoint.
- Reset related accounts.
- Notify the business owner.
- Update the incident knowledge base.
Why it matters
Consistent documentation helps smaller teams build repeatable incident response. Use this post as a starting point and make it your own.
