alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Mekotio HTTP Method (111SA)"; flow:established,to_server; http.method; content:"111SA"; fast_pattern; reference:url,www.welivesecurity.com/2020/08/13/mekotio-these-arent-the-security-updates-youre-looking-for/; classtype:trojan-activity; sid:2030719; rev:1; metadata:attack_target Client_Endpoint, created_at 2020_08_21, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_08_21;)