WAF Rule ID 390509

Alert message: Atomicorp.com WAF Rules - User Defined Bad User-Agent blocked

Rule Class: Generic Attack Ruleset (21_asl_useragents.conf)

Version: 1

Severity: Critical (HIDS: 9)

HTTP Protocol Phase: 2

HTTP Status: 403

Action: deny

Transforms:

  • urlDecodeUni

Log Types:

  • Basic Information (log)

  • Capture full session (auditlog)

Description:

Atomicorp.com WAF Rules - User Defined Bad User-Agent blocked

Troubleshooting:

False Positives:

Instructions to report false positives are detailed at Reporting False Positives If it is a false positive, we will fix the issue in the rules and get a release out to you promptly.

Configuration Notes:

  • enabled by: MODSEC_10_RULES

  • Requires Engine version: 2.9.0 or above

Tuning guidance Notes:

None.

If you know that this behavior is acceptable for your application, you can tune by following the guidance on the Tuning the Atomicorp WAF Rules

Additional Information:

Similar rules:

None.

Outside References:

None.