alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"GPL RPC sadmind query with root credentials attempt TCP"; flow:to_server,established; content:"|00 01 87 88|"; fast_pattern; depth:4; offset:16; content:"|00 00 00 01 00 00 00 01|"; within:8; distance:4; byte_jump:4,8,relative,align; content:"|00 00 00 00|"; within:4; classtype:misc-attack; sid:2102255; rev:5; metadata:created_at 2010_09_23, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)