alert tcp $EXTERNAL_NET any -> $HOME_NET 139 (msg:"GPL NETBIOS SMB NT Trans NT CREATE andx invalid SACL ace size dos attempt"; flow:stateless; 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,-7,little,relative,from_beginning; content:!"|00 00 00 00|"; within:4; distance:16; byte_jump:4,16,relative,little; content:"|00 00|"; within:2; distance:-10; classtype:protocol-command-decode; sid:2103043; rev:8; metadata:created_at 2010_09_23, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)