ET MALWARE Qwerty Stealer Data Exfiltration Attempt M2

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Qwerty Stealer Data Exfiltration Attempt M2";
    flow:established,to_server;
    flowbits:set,ET.qwerty_stealer.exfil;
    http.method;
    content:"POST";
    http.uri;
    content:"/filedata/"; startswith;
    http.content_type; bsize:40;
    content:"multipart/form-data|3b 20|boundary|3d 2d 2d 2d 2d|qwerty"; fast_pattern;
    http.user_agent; bsize:1;
    content:"-";
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|filetoupload|22 3b 20|filename|3d 22|";
    content:"Content-Type|3a 20|application/octet-stream|0d 0a|"; within:200;
    content:"Content-Transfer-Encoding|3a 20|binary|0d 0a 0d 0a|"; within:50;
    reference:url,www.cyfirma.com/research/qwerty-information-stealer/;
    classtype:trojan-activity;
    sid:2055395; 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_08_22, deployment Perimeter, deployment SSLDecrypt, malware_family Qwerty_Stealer, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_08_22;
    target:src_ip;
)