GPL NETBIOS SMB DCERPC LSASS bind attempt

alert tcp $EXTERNAL_NET any -> $HOME_NET 139 (
    msg:"GPL NETBIOS SMB DCERPC LSASS bind attempt";
    flow:to_server,established;
    content:"|00|"; depth:1;
    content:"|FF|SMB%"; depth:5; offset:4; nocase;
    byte_test:2,^,1,5,relative;
    content:"&|00|"; within:2; distance:56;
    content:"|5C|PIPE|5C 00 05 00 0B|"; within:10; distance:4;
    byte_test:1,&,16,1,relative;
    content:"j|28 19|9|0C B1 D0 11 9B A8 00 C0|O|D9|.|F5|"; within:16; distance:29;
    flowbits:set,netbios.lsass.bind.attempt;
    flowbits:noalert;
    reference:bugtraq,10108;
    reference:cve,2003-0533;
    reference:url,www.microsoft.com/technet/security/bulletin/MS04-011.mspx;
    classtype:protocol-command-decode;
    sid:2102510; rev:8;
    metadata:created_at 2010_09_23, cve CVE_2003_0533, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)