ET MALWARE FakeEXT Data Exfiltration Attempt

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE FakeEXT Data Exfiltration Attempt";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/grab/put?name|3d|"; startswith; fast_pattern;
    content:"value|3d|";
    content:"css_id|3d|";
    content:"uid|3d|";
    pcre:"/^[a-f0-9]{8}([a-f0-9]{4}-){2}[a-f0-9]{3}-[a-f0-9]{12}/R";
    content:"url|3d|";
    reference:url,securityintelligence.com/posts/fakext-targeting-latin-american-banks/;
    classtype:trojan-activity;
    sid:2051542; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_03_07, deployment Perimeter, deployment SSLDecrypt, malware_family FakeEx, performance_impact Low, confidence High, signature_severity Major, tag FakeEXT, updated_at 2024_03_07;
    target:src_ip;
)