alert tcp $EXTERNAL_NET any -> $HOME_NET 445 (msg:"GPL NETBIOS SMB-DS DCERPC enumerate printers request attempt"; flow:to_server,established; content:"|FF|SMB%"; depth:5; offset:4; nocase; content:"&|00|"; within:2; distance:56; content:"|5C 00|P|00|I|00|P|00|E|00 5C 00|"; fast_pattern; within:12; distance:5; nocase; content:"|05|"; distance:1; content:"|00|"; within:1; distance:1; byte_test:1,&,3,0,relative; content:"|00 00|"; within:2; distance:19; flowbits:isset,dce.printer.bind; classtype:attempted-recon; sid:2102349; rev:7; metadata:created_at 2010_09_23, confidence Medium, signature_severity Informational, updated_at 2019_07_26;)