Rule History

alert tcp $HOME_NET any -> $HOME_NET 2555 (msg:"ET SCAN Internal to Internal UPnP Request tcp port 2555"; flow:established,to_server; content:"GET "; depth:4; content:"/upnp/"; nocase; pcre:"/^[a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{16}\//Ri"; reference:url,www.upnp-hacks.org/upnp.html; classtype:attempted-recon; sid:2008092; rev:4; metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, updated_at 2019_09_26;)