ET MALWARE TA406 Win32/Updog Backdoor Data Exfiltration Attempt

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE TA406 Win32/Updog Backdoor Data Exfiltration Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/up.php?name="; startswith;
    http.content_type;
    content:"multipart/form-data|3b 20|boundary|3d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d|"; startswith;
    content:"7e4512a60722"; fast_pattern; distance:0; endswith;
    http.request_body;
    content:"|2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d|7e4512a60722|0d 0a|Content-Disposition|3a 20|form-data|3b 20|name|3d 22|fileToUpload|22 3b 20|filename|3d 22|"; startswith;
    reference:url,www.fortinet.com/blog/threat-research/konni-campaign-distributed-via-malicious-document;
    classtype:trojan-activity;
    sid:2049306; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_and_Server, created_at 2023_11_27, deployment Perimeter, malware_family Win32_Updog, confidence High, signature_severity Major, updated_at 2023_11_27;
    target:src_ip;
)