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sigma-rules/detection_rules
Samirbous 42e7f3b4ce [New] Multiple Alerts on a Host Exhibiting CPU Spike (#5621)
* [New] Multiple Alerts on a Host Exhibiting CPU Spike

This rule correlates multiple security alerts from a host exhibiting unusually high CPU utilization within a short time window. This behavior may indicate malicious activity such as malware execution, cryptomining, exploit payload execution, or abuse of system resources following initial compromise.

* Update multiple_alerts_on_host_with_cpu_spike.toml

* Rename multiple_alerts_on_host_with_cpu_spike.toml to impact_alerts_on_host_with_cpu_spike.toml

* Update impact_alerts_on_host_with_cpu_spike.toml

* Update rules/cross-platform/impact_alerts_on_host_with_cpu_spike.toml

Co-authored-by: Mika Ayenson, PhD <Mikaayenson@users.noreply.github.com>

* Update non-ecs-schema.json

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Co-authored-by: Mika Ayenson, PhD <Mikaayenson@users.noreply.github.com>
2026-01-26 20:42:20 +00:00
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