ET MALWARE Win32/ChromeBack Browser Hijacker (getAd)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/ChromeBack Browser Hijacker (getAd)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"ad?ext=Properties"; startswith; fast_pattern;
    content:"&ver="; distance:0;
    content:"&dd="; distance:0;
    http.user_agent;
    content:"Wget"; startswith;
    reference:url,gosecure.net/blog/2022/02/10/malicious-chrome-browser-extension-exposed-chromeback-leverages-silent-extension-loading/;
    classtype:trojan-activity;
    sid:2036299; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_04_21, deployment Perimeter, malware_family Win32_ChromeBack, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_04_21;
)