ET MALWARE Successful CargoBay Exfil

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Successful CargoBay Exfil";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/agents"; bsize:11;
    http.user_agent;
    content:"zload/0.1"; bsize:9; fast_pattern;
    http.request_body;
    content:"identity_public_key";
    content:"public_prekey_signature"; distance:0;
    classtype:trojan-activity;
    sid:2038578; rev:1;
    metadata:created_at 2022_08_19, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_19;
)