alert tcp $EXTERNAL_NET any -> $HOME_NET 139 (msg:"GPL NETBIOS SMB DCERPC Workstation Service 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:"|98 D0 FF|k|12 A1 10|6|98|3F|C3 F8|~4Z"; within:16; distance:29; reference:bugtraq,9011; reference:cve,2003-0812; reference:url,www.microsoft.com/technet/security/bulletin/MS03-049.mspx; classtype:misc-attack; sid:2102309; rev:7; metadata:created_at 2010_09_23, cve CVE_2003_0812, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)