alert udp any any -> any 69 (msg:"GPL TFTP GET Admin.dll"; content:"|00 01|"; depth:2; content:"admin.dll"; offset:2; nocase; reference:url,www.cert.org/advisories/CA-2001-26.html; classtype:successful-admin; sid:2101289; rev:5; metadata:created_at 2010_09_23, signature_severity Informational, updated_at 2019_07_26;)