GPL RPC sadmind TCP NETMGT_PROC_SERVICE CLIENT_DOMAIN overflow attempt

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;
)