Isai 62aa4dcedc [Rule Tuning] Potential AWS S3 Bucket Ransomware Note Uploaded (#5739) ...

Tuning based on telemetry from recent rule version 9. There are many false positives for what look like typical S3 storage object names like `BillingInformation`, `InstanceInformation` created by AWS Service accounts. I'm excluding AWS service account types from the rule for now which eliminated ~97% of the false positives over last 30 days. leaving only 66 which is acceptable for this rule and should be addressed via local exclusions.

Co-authored-by: Colson Wilhoit <48036388+DefSecSentinel@users.noreply.github.com>

2026-02-20 10:41:42 -05:00

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aws

[Rule Tuning] Potential AWS S3 Bucket Ransomware Note Uploaded (#5739)

2026-02-20 10:41:42 -05:00

aws_bedrock

[Tuning] Add mv_expand for gen_ai.policy.action field (#5296)

2025-11-11 07:37:40 +05:30

azure

[Rule Tuning] Entra ID Federated Identity Credential Persistence Detection (#5702)

2026-02-19 15:58:12 -05:00

azure_openai

[Rule Tuning] Updated ESQL Rules Based on Validation Results (#5151)

2025-09-30 00:36:29 -04:00

beaconing

[FR] Generate investigation guides (#4358)

2025-01-22 11:17:38 -06:00

cloud_defend

[New/Tuning] Misc. D4C Rules (#5710)

2026-02-12 10:52:16 +01:00

cyberarkpas

[FR] Generate investigation guides (#4358)

2025-01-22 11:17:38 -06:00

ded

[FR] Generate investigation guides (#4358)

2025-01-22 11:17:38 -06:00

dga

[Rule Tuning] Reduce Severity from Critical to High (#4637)

2025-05-06 21:37:47 +05:30

endpoint

Prep 8.19/9.1 (#4869)

2025-07-07 11:27:48 -04:00

fim

[Rule Tuning] Potential Persistence via File Modification (#5404)

2025-12-05 10:32:58 +01:00

gcp

Add rules for Azure Activity Logs/GCP Audit ML jobs (#5191)

2025-11-26 13:15:23 -05:00

github

[Rule Tuning] Dormant & Deprecated Rule Clean-Up (#5672)

2026-02-05 13:24:21 +01:00

google_workspace

Fix spacing in Setup information (#4470)

2025-02-20 10:04:13 +05:30

kubernetes

Monthly Manifest and Schema Updation (#5697)

2026-02-10 09:17:04 +05:30

lmd

[Tuning] Adds host metadata to the setup requirements (#5719)

2026-02-18 17:04:40 +00:00

o365

[Rule Deprecation] M365 Teams Guest & External Access Rules (#5721)

2026-02-18 10:00:24 -05:00

okta

[Rule Tuning] Okta User Assigned Administrator Role (#5671)

2026-02-12 09:33:25 -05:00

pad

Prep 8.19/9.1 (#4869)

2025-07-07 11:27:48 -04:00

problemchild

[Rule Tuning] Machine Learning Detected a Suspicious Windows Event with a High Malicious Probability Score (#5523) (#5686)

2026-02-05 15:54:26 -05:00