alert udp $EXTERNAL_NET any -> $HOME_NET 111 (msg:"GPL EXPLOIT portmap proxy integer overflow attempt UDP"; content:"|00 01 86 A0 00|"; depth:5; offset:12; content:"|00 00 00 05|"; within:4; distance:3; byte_jump:4,4,relative,align; byte_jump:4,4,relative,align; byte_test:4,>,2048,12,relative; content:"|00 00 00 00|"; depth:4; offset:4; reference:bugtraq,7123; reference:cve,2003-0028; classtype:rpc-portmap-decode; sid:2102092; rev:6; metadata:created_at 2010_09_23, confidence Medium, signature_severity Major, updated_at 2019_07_26;)