alert tcp $EXTERNAL_NET any -> $HOME_NET 139 (msg:"GPL NETBIOS SMB startup folder unicode access"; flow:to_server,established; content:"|00|"; depth:1; content:"|FF|SMB2"; depth:5; offset:4; content:"|5C 00|S|00|t|00|a|00|r|00|t|00| |00|M|00|e|00|n|00|u|00 5C 00|P|00|r|00|o|00|g|00|r|00|a|00|m|00|s|00 5C 00|S|00|t|00|a|00|r|00|t|00|u|00|p"; distance:0; nocase; classtype:attempted-recon; sid:2102177; rev:5; metadata:created_at 2010_09_23, signature_severity Informational, updated_at 2019_07_26;)