ET PHISHING Fake Google Chrome Error Landing Page, Control Access with Cookie

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET PHISHING Fake Google Chrome Error Landing Page, Control Access with Cookie";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    file.data;
    content:"function load_payload()";
    content:"document.createElement('iframe')|3b|"; distance:0;
    content:"filename = `chromium-patch-nightly."; distance:0;
    content:"Math.random().toString().substr("; distance:0;
    content:"fetch|28 27|"; distance:0;
    content:"|2f|release|2e|zip|27 29|"; distance:0;
    content:"e.file('payload.exe')"; distance:0;
    content:"zip|2e|remove|28 27|payload|2e|exe|27 29|"; distance:0; fast_pattern;
    content:"iframe|2e|style|20 3d 20 27|display|3a|None|27 3b|"; distance:0;
    reference:url,insight-jp.nttsecurity.com/post/102icvb/attack-campaign-that-uses-fake-google-chrome-error-to-distribute-malware-from-com;
    classtype:credential-theft;
    sid:2045128; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_04_21, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_21;
)