alert tcp $EXTERNAL_NET any -> $TELNET_SERVERS 23 (msg:"GPL EXPLOIT login buffer non-evasive overflow attempt"; flow:to_server,established; flowbits:isnotset,ttyprompt; content:"|FF FA|'|00 00|"; rawbytes; pcre:"/T.*?T.*?Y.*?P.*?R.*?O.*?M.*?P.*?T/RBi"; flowbits:set,ttyprompt; reference:bugtraq,3681; reference:cve,2001-0797; classtype:attempted-admin; sid:2103274; rev:4; metadata:created_at 2010_09_23, cve CVE_2001_0797, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)