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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
id: 4465ebde-b381-45f7-ad08-7d818070a11c
name: Critical or High Severity Detections by User
name: Common Event Format (CEF) via AMA - Critical or High Severity Detections by User
description: |
'Creates an incident when a large number of Critical or High severity CrowdStrike Falcon sensor detections is triggered by a single user within 1 hour. The rule uses the CrowdStrikeFalconEventStream table, filters for DetectionSummaryEvent records with Severity set to Critical or High, and alerts when detections for a single DstUserName exceed the configured threshold of 15. Review DstHostName, SrcIpAddr, FileName, FileHash, and Message for investigation context.'
severity: High
Expand Down Expand Up @@ -59,5 +59,5 @@ customDetails:
FileName: FileName
FileHash: FileHash
Total: Total
version: 1.0.5
version: 1.0.6
kind: Scheduled
Original file line number Diff line number Diff line change
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id: f7d298b2-726c-42a5-bbac-0d7f9950f527
name: Critical Severity Detection
name: Common Event Format (CEF) via AMA - Critical Severity Detection
description: |
'Creates an incident when a CrowdStrike Falcon sensor detection is triggered with Critical severity. The rule queries CrowdStrikeFalconEventStream for DetectionSummaryEvent records where Severity is Critical, summarizes detections by host, source IP, user, activity, technique, file details, hash, and message, and raises an incident for each matching result.'
severity: High
Expand Down Expand Up @@ -59,5 +59,5 @@ customDetails:
DetectionHost: DstHostName
DetectionUser: DstUserName
DetectionSourceIp: SrcIpAddr
version: 1.0.5
version: 1.0.6
kind: Scheduled
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