alert tcp $EXTERNAL_NET any -> $HOME_NET 445 (msg:"GPL NETBIOS SMB-DS IrotIsRunning unicode attempt"; flow:established,to_server; flowbits:isset,smb.tree.bind.irot; content:"|00|"; depth:1; content:"|FF|SMB%"; within:5; distance:3; byte_test:1,&,128,6,relative; content:"&|00|"; within:2; distance:56; content:"|5C 00|P|00|I|00|P|00|E|00 5C 00 00 00|"; distance:4; nocase; byte_jump:2,-17,relative,from_beginning,little; isdataat:4,relative; content:"|05|"; byte_test:1,!&,16,3,relative; content:"|00|"; within:1; distance:1; content:"|00 02|"; within:2; distance:19; byte_jump:4,8,relative,little,align; byte_test:4,>,1024,0,little; reference:bugtraq,6005; reference:cve,2002-1561; reference:url,www.microsoft.com/technet/security/bulletin/MS03-010.mspx; classtype:protocol-command-decode; sid:2103266; rev:6; metadata:created_at 2010_09_23, cve CVE_2002_1561, confidence Medium, signature_severity Informational, updated_at 2019_07_26;)