alert tcp $HOME_NET 445 -> $EXTERNAL_NET any (msg:"GPL NETBIOS SMB-DS Trans2 FIND_FIRST2 response andx overflow attempt"; flow:established,to_client; flowbits:isset,smb.trans2; content:"|00|"; depth:1; content:"|FF|SMB"; within:4; distance:3; pcre:"/^(\x75|\x2d|\x2f|\x73|\xa2|\x2e|\x24|\x74)/sR"; content:"2"; depth:1; offset:39; byte_jump:2,0,little,relative; flowbits:unset,smb.trans2; byte_test:2,>,15,7,relative,little; reference:cve,2005-0045; reference:url,www.microsoft.com/technet/security/Bulletin/MS05-011.mspx; classtype:protocol-command-decode; sid:2103146; rev:4; metadata:created_at 2010_09_23, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)