alert tcp $EXTERNAL_NET any -> $HOME_NET 161 (msg:"GPL SNMP public access tcp"; flow:to_server,established; content:"public"; reference:bugtraq,2112; reference:bugtraq,4088; reference:bugtraq,4089; reference:bugtraq,7212; reference:cve,1999-0517; reference:cve,2002-0012; reference:cve,2002-0013; classtype:attempted-recon; sid:2101412; rev:14; metadata:created_at 2010_09_23, cve CVE_1999_0517, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)