ET MALWARE Goldoon Botnet CnC Response (Tasking)

alert tcp-pkt $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Goldoon Botnet CnC Response (Tasking)";
    flow:established,to_client;
    flowbits:isset,ET.Goldoon.Checkin;
    content:"|00 00 00 01 00 00 00 0a 00 00 00 06|Thread|00 00 00|"; startswith; fast_pattern;
    content:"|04|Time|00 00 00|"; within:40;
    content:"|06|Method|00 00 00|"; within:40;
    content:"|08|AttackId|00 00 00|"; within:40;
    content:"|08|Hostname|00 00 00|"; within:40;
    content:"|08|Protocol|00 00 00|"; within:40;
    content:"|06|Target|00 00 00|"; within:30;
    content:"|04|Type|00 00 00|"; within:100;
    content:"|05|dPort|00 00 00|"; within:40;
    content:"|04|IsV6|00 00 00|"; within:40;
    threshold:type limit, seconds 120, count 1, track by_dst;
    reference:url,www.fortinet.com/blog/threat-research/new-goldoon-botnet-targeting-d-link-devices;
    classtype:trojan-activity;
    sid:2052396; rev:1;
    metadata:affected_product Any, attack_target Client_and_Server, tls_state plaintext, created_at 2024_05_03, deployment Perimeter, malware_family Goldoon, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_05_03;
    target:dest_ip;
)