alert udp $EXTERNAL_NET any -> $HOME_NET 69 (msg:"GPL TFTP Put"; content:"|00 02|"; depth:2; reference:cve,1999-0183; classtype:bad-unknown; sid:2100518; rev:8; metadata:created_at 2010_09_23, cve CVE_1999_0183, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)