alert tcp $EXTERNAL_NET any -> $HOME_NET 445 (msg:"GPL NETBIOS SMB-DS NT Trans NT CREATE oversized Security Descriptor attempt"; flow:established,to_server; content:"|00|"; depth:1; content:"|FF|SMB|A0|"; within:5; distance:3; byte_test:1,!&,128,6,relative; pcre:"/^.{27}/R"; 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:2103022; rev:4; metadata:created_at 2010_09_23, cve CVE_2004_1154, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)