ET MALWARE MSIL/Monitor.PCTattletale.A Checkin (POST)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE MSIL/Monitor.PCTattletale.A Checkin (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/Prod/api/pctt/devices/"; fast_pattern; bsize:23;
    http.header_names;
    content:!"Referer";
    content:!"User-Agent";
    http.request_body;
    content:"{|22|MemberID|22 3a|"; startswith;
    content:"|22 2c 22|DeviceName|22 3a 22|"; distance:0;
    content:"|22 2c 22|DeviceDescription|22 3a 22|"; distance:0;
    content:"|22 2c 22|SoftwareVersion|22 3a 22|"; distance:0;
    reference:md5,d76d32487a84bb529a94ee39444f8212;
    reference:url,www.vice.com/en/article/m7ezj8/stalkerware-leaking-phone-screenshots-pctattletale;
    classtype:trojan-activity;
    sid:2034013; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_09_23, deployment Perimeter, deployment SSLDecrypt, malware_family MSIL_Monitor_PCTattletale_A, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_09_23;
)