alert tcp $EXTERNAL_NET any -> $HOME_NET 445 (msg:"GPL NETBIOS SMB-DS nddeapi andx bind attempt"; flow:established,to_server; flowbits:isset,smb.tree.create.nddeapi; content:"|00|"; depth:1; content:"|FF|SMB"; within:4; distance:3; pcre:"/^(\x75|\x2d|\x2f|\x73|\xa2|\x2e|\x24|\x74)/sR"; byte_test:1,!&,128,6,relative; content:"%"; depth:1; offset:39; byte_jump:2,0,little,relative; content:"&|00|"; within:2; distance:29; content:"|5C|PIPE|5C 00|"; distance:4; nocase; byte_jump:2,-10,relative,from_beginning; pcre:"/^.{4}/R"; content:"|05|"; within:1; content:"|0B|"; within:1; distance:1; content:" 2_/&|C1|v|10 B5|I|07|M|07 86 19 DA|"; within:16; distance:29; flowbits:set,smb.tree.bind.nddeapi; reference:bugtraq,11372; reference:cve,2004-0206; classtype:protocol-command-decode; sid:2102962; rev:5; metadata:created_at 2010_09_23, cve CVE_2004_0206, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)