alert tcp $EXTERNAL_NET any -> $HOME_NET 445 (msg:"GPL NETBIOS SMB-DS DCERPC ISystemActivator bind attempt"; flow:to_server,established; content:"|FF|SMB%"; depth:5; offset:4; nocase; content:"&|00|"; within:2; distance:56; content:"|5C 00|P|00|I|00|P|00|E|00 5C 00|"; within:12; distance:5; nocase; content:"|05|"; within:1; content:"|0B|"; within:1; distance:1; byte_test:1,&,1,0,relative; content:"|A0 01 00 00 00 00 00 00 C0 00 00 00 00 00 00|F"; within:16; distance:29; flowbits:set,dce.isystemactivator.bind.call.attempt; reference:bugtraq,8205; reference:cve,2003-0352; reference:nessus,11808; reference:url,www.microsoft.com/technet/security/bulletin/MS03-026.mspx; classtype:protocol-command-decode; sid:2102193; rev:12; metadata:created_at 2010_09_23, cve CVE_2003_0352, confidence Medium, signature_severity Informational, updated_at 2019_07_26;)