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PASSEDvendor / paloalto_threat_prevention_false_positive
Palo Alto Threat Prevention False Positive Blocking ERP
A Palo Alto threat prevention content update incorrectly classifies ERP traffic as a command-and-control callback pattern, blocking all employee access to the SAP ERP system.
Pattern
UNKNOWN
Severity
CRITICAL
Confidence
95%
Remediation
Remote Hands
Test Results
| Metric | Expected | Actual | Result |
|---|---|---|---|
| Pattern Recognition | UNKNOWN | UNKNOWN | |
| Severity Assessment | CRITICAL | CRITICAL | |
| Incident Correlation | Yes | 20 linked | |
| Cascade Escalation | N/A | No | |
| Remediation | — | Remote Hands — Corax contacts on-site support via call, email, or API |
Scenario Conditions
PA-3260 with Threat Prevention subscription. Content update 8845-8200 pushed at midnight. SAP ERP on TCP 3200-3299. 500 employees dependent on SAP. No exception configured.
Injected Error Messages (2)
palo alto threat prevention blocking SAP ERP — PA-3260 threat ID 86425 (command-and-control) matching SAP GUI protocol on ports 3200-3299, all SAP sessions terminated, palo alto action: reset-both, threat content version 8845-8200 introduced false positive signature for SAP RFC protocol pattern
palo alto PA-3260 threat log flooding with false positive detections — 12000 threat events in 30 minutes for 'Suspicious C2 Callback' on SAP traffic, palo alto IPS signature matching legitimate SAP DIAG protocol handshake, threat prevention policy action: deny, all 500 users blocked from ERP system
Neural Engine Root Cause Analysis
The SAP ERP application outage is caused by a false positive in Palo Alto threat prevention system. Threat content version 8845-8200 introduced a malicious signature that incorrectly identifies legitimate SAP RFC protocol traffic on ports 3200-3299 as command-and-control activity (threat ID 86425). The firewall is actively resetting all SAP GUI connections, preventing users from accessing the ERP system. This is a security appliance configuration issue, not an application failure.
Remediation Plan
1. Immediately create a custom threat exception rule in Palo Alto for threat ID 86425 on the SAP server subnet (10.10.50.x) and ports 3200-3299. 2. Temporarily disable threat ID 86425 globally if SAP servers are distributed across multiple subnets. 3. Verify SAP connectivity is restored by testing GUI connections. 4. Contact Palo Alto support to report the false positive signature in content version 8845-8200. 5. Monitor for updated threat content that resolves this issue. 6. Document the exception rule for future threat content updates.
Tested: 2026-03-30Monitors: 2 | Incidents: 2Test ID: cmnck496s06lrobqebhd9v6a2