alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT LB-Link Command Injection Attempt (CVE-2023-26801)"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:27; content:"/goform/set_LimitClient_cfg"; http.request_body; content:"time1="; startswith; fast_pattern; content:"&time2"; distance:0; content:"&mac="; distance:0; pcre:"/^[^&]*?(?:(wget|curl))/R"; reference:url,unit42.paloaltonetworks.com/mirai-variant-iz1h9; reference:cve,2023-26801; classtype:attempted-admin; sid:2048548; rev:2; metadata:attack_target IoT, created_at 2023_10_12, cve CVE_2023_26801, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_09_17, reviewed_at 2023_10_12, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1210, mitre_technique_name Exploitation_Of_Remote_Services; target:dest_ip;)