ET MALWARE Lampion CnC Activity

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Lampion CnC Activity";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.content_type;
    content:"application/x-www-form-urlencoded";
    http.request_body;
    content:"plug=NAO&SYS=Windows"; startswith; fast_pattern;
    content:"&AVS="; distance:0;
    content:"&USERPC="; distance:0;
    content:"&NAV="; distance:0;
    content:"&ORI="; distance:0;
    reference:url,seguranca-informatica.pt/targeting-portugal-a-new-trojan-lampion-has-spread-using-template-emails-from-the-portuguese-government-finance-tax;
    classtype:command-and-control;
    sid:2029221; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_01_02;
)