alert tcp $EXTERNAL_NET any -> $HOME_NET 445 (msg:"GPL NETBIOS SMB-DS OpenKey andx overflow attempt"; flow:established,to_server; flowbits:isset,smb.tree.bind.winreg; 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,-17,relative,from_beginning,little; isdataat:4,relative; content:"|05|"; byte_test:1,!&,16,3,relative; content:"|00|"; within:1; distance:1; content:"|00 0F|"; within:2; distance:19; byte_test:2,>,1024,20,relative; reference:bugtraq,1331; reference:cve,2000-0377; classtype:attempted-admin; sid:2103230; rev:4; metadata:created_at 2010_09_23, cve CVE_2000_0377, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)