Rule History

alert dns $HOME_NET any -> any any (msg:"ET INFO Infrastructure as a Service Domain in DNS Lookup (railway .app)"; dns.query; dotprefix; content:".railway.app"; nocase; endswith; reference:url,railway.com/about; classtype:misc-activity; sid:2066346; rev:1; metadata:attack_target Client_Endpoint, created_at 2025_12_16, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_12_16;)