alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT Totolink - Command Injection Attempt Inbound (CVE-2022-26210)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/cgi-bin/cstecgi.cgi"; http.request_body; content:"setUpgradeFW"; fast_pattern; content:"FileName|3a 20 3a|"; distance:0; pcre:"/^.{0,20}[\x3b\x0a\x26\x60\x7c\x24]/R"; reference:cve,2022-26210; classtype:attempted-admin; sid:2035744; rev:4; metadata:attack_target Networking_Equipment, created_at 2022_04_05, cve CVE_2022_26210, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, updated_at 2024_11_29, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1210, mitre_technique_name Exploitation_Of_Remote_Services;)