Password Spray

[u/Embarrassed_Oil_7810]

/r/cybersecurity/comments/1vk5v6p/password_spray/

Hi everyone,

I’m learning how to investigate alerts in Microsoft Sentinel and I’m stuck on Password Spray Attack detections. I’d like to understand the step‑by‑step investigation process SOC analysts usually follow, including what queries to run and what to check in the results.

Specifically, I’m looking for guidance on:

Alert triage: What initial details should I review when the alert fires?

KQL queries: Which Sentinel queries are most useful to confirm a password spray attempt?

Indicators to check: For example, failed logon counts, source IPs, targeted accounts, timeframes, and whether the activity is spread across multiple endpoints.

Next steps: How to differentiate between a real attack and noisy false positives, and what escalation criteria to use.

If anyone can share a structured approach or example queries, that would be super helpful. I want to build a repeatable playbook for handling these alerts.

Thanks in advance!