alert udp $EXTERNAL_NET any -> $HOME_NET any (msg:"GPL RPC ypupdated arbitrary command attempt UDP"; content:"|00 01 86 BC|"; depth:4; offset:12; content:"|00 00 00 01|"; within:4; distance:4; byte_jump:4,4,relative,align; byte_jump:4,4,relative,align; content:"|7C|"; distance:4; content:"|00 00 00 00|"; depth:4; offset:4; classtype:misc-attack; sid:2102088; rev:6; metadata:created_at 2010_09_23, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)