ET MALWARE NEWPASS CnC Client Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE NEWPASS CnC Client Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"newpass="; startswith;
    content:"&server_page="; distance:0;
    content:"&passdb="; distance:0;
    content:"&targetlogin="; distance:0; fast_pattern;
    content:"&table_data="; distance:0;
    reference:url,www.telsy.com/turla-venomous-bear-updates-its-arsenal-newpass-appears-on-the-apt-threat-scene/;
    classtype:command-and-control;
    sid:2030557; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2020_07_17, deployment Perimeter, malware_family Turla, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_07_17;
)