Rule History

alert tcp $EXTERNAL_NET any -> $HOME_NET 139 (msg:"GPL NETBIOS SMB NT Trans NT CREATE unicode andx oversized Security Descriptor attempt"; flow:established,to_server; 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:"|A0|"; depth:1; offset:39; byte_jump:2,0,little,relative; content:"|01 00|"; within:2; distance:37; byte_jump:4,-15,little,relative,from_beginning; isdataat:4,relative; byte_test:4,>,1024,40,relative,little; reference:cve,2004-1154; classtype:protocol-command-decode; sid:2103021; rev:4; metadata:created_at 2010_09_23, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)