Files
sigma-rules/rules
Samirbous 094f907144 [New] Detection Alert on a Process Exhibiting CPU Spike (#5617)
* [New] Detection Alert on a Process Exhibiting CPU Spike

This rule correlates security alerts with processes exhibiting unusually high CPU utilization on the same host and process ID 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 securityt_alert_from_a_process_with_cpu_spike.toml

* Update securityt_alert_from_a_process_with_cpu_spike.toml

* Update rules/cross-platform/securityt_alert_from_a_process_with_cpu_spike.toml

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

* Rename securityt_alert_from_a_process_with_cpu_spike.toml to security_alert_from_a_process_with_cpu_spike.toml

* Update security_alert_from_a_process_with_cpu_spike.toml

* Rename security_alert_from_a_process_with_cpu_spike.toml to impact_alert_from_a_process_with_cpu_spike.toml

* Update impact_alert_from_a_process_with_cpu_spike.toml

* Update non-ecs-schema.json

* Update rules/cross-platform/impact_alert_from_a_process_with_cpu_spike.toml

Co-authored-by: Eric Forte <119343520+eric-forte-elastic@users.noreply.github.com>

---------

Co-authored-by: Mika Ayenson, PhD <Mikaayenson@users.noreply.github.com>
Co-authored-by: Eric Forte <119343520+eric-forte-elastic@users.noreply.github.com>
2026-01-26 17:42:31 +00:00
..

rules/

Rules within this folder are organized by solution or platform. The structure is flattened out, because nested file hierarchies are hard to navigate and find what you're looking for. Each directory contains several .toml files, and the primary ATT&CK tactic is included in the file name when it's relevant (i.e. windows/execution_via_compiled_html_file.toml)

folder description
. Root directory where rules are stored
apm/ Rules that use Application Performance Monitoring (APM) data sources
cross-platform/ Rules that apply to multiple platforms, such as Windows and Linux
integrations/ Rules organized by Fleet integration
linux/ Rules for Linux or other Unix based operating systems
macos/ Rules for macOS
ml/ Rules that use machine learning jobs (ML)
network/ Rules that use network data sources
promotions/ Rules that promote external alerts into detection engine alerts
windows/ Rules for the Microsoft Windows Operating System

Integration specific rules are stored in the integrations/ directory:

folder integration
aws/ Amazon Web Services (AWS)
azure/ Microsoft Azure
cyberarkpas/ Cyber Ark Privileged Access Security
endpoint/ Elastic Endpoint Security
gcp/ Google Cloud Platform (GCP)
google_workspace/ Google Workspace (formerly GSuite)
o365/ Microsoft Office
okta/ Oka