AWS WAF Rule or Rule Group Deletion
editAWS WAF Rule or Rule Group Deletion
editIdentifies the deletion of a specified AWS Web Application Firewall (WAF) rule or rule group.
Rule type: query
Rule indices:
- filebeat-*
- logs-aws*
Severity: medium
Risk score: 47
Runs every: 10 minutes
Searches indices from: now-60m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Cloud
- AWS
- Continuous Monitoring
- SecOps
- Network Security
Version: 6 (version history)
Added (Elastic Stack release): 7.9.0
Last modified (Elastic Stack release): 7.13.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positives
editWAF rules or rule groups may be deleted by a system or network administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Rule deletions from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
Investigation guide
edit## Config The AWS Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
Rule query
editevent.dataset:aws.cloudtrail and event.action:(DeleteRule or DeleteRuleGroup) and event.outcome:success
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
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Technique:
- Name: Impair Defenses
- ID: T1562
- Reference URL: https://attack.mitre.org/techniques/T1562/
Rule version history
edit- Version 6 (7.13.0 release)
-
- Formatting only
- Version 5 (7.12.0 release)
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- Formatting only
- Version 4 (7.11.2 release)
-
- Formatting only
- Version 3 (7.11.0 release)
-
- Formatting only
- Version 2 (7.10.0 release)
-
-
Updated query, changed from:
event.module:aws and event.dataset:aws.cloudtrail and event.action:(DeleteRule or DeleteRuleGroup) and event.outcome:success
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