alert tcp $EXTERNAL_NET any -> $HOME_NET 445 (msg:"GPL NETBIOS SMB-DS winreg unicode andx create tree attempt"; flow:established,to_server; flowbits:isset,smb.tree.connect.ipc; content:"|00|"; depth:1; content:"|FF|SMB"; within:4; distance:3; pcre:"/^(\x75|\x2d|\x2f|\x73|\x2e|\x24|\x74)/sR"; byte_test:1,&,128,6,relative; content:"|A2|"; depth:1; offset:39; byte_jump:2,0,little,relative; content:"|5C 00|w|00|i|00|n|00|r|00|e|00|g|00 00 00|"; within:16; distance:51; nocase; flowbits:set,smb.tree.create.winreg; classtype:protocol-command-decode; sid:2102987; rev:4; metadata:created_at 2010_09_23, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)