alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"GPL RPC sadmind TCP NETMGT_PROC_SERVICE CLIENT_DOMAIN overflow attempt"; flow:to_server,established; content:"|00 01 87 88|"; depth:4; offset:16; content:"|00 00 00 01|"; within:4; distance:4; byte_jump:4,4,relative,align; byte_jump:4,4,relative,align; byte_jump:4,124,relative,align; byte_jump:4,20,relative,align; byte_test:4,>,512,4,relative; content:"|00 00 00 00|"; depth:4; offset:8; reference:bugtraq,0866; reference:bugtraq,866; reference:cve,1999-0977; classtype:attempted-admin; sid:2101912; rev:10; metadata:created_at 2010_09_23, cve CVE_1999_0977, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)