ET MALWARE ASYNC RAT Payload Inbound

Query · suricata

flow:established,to_client;
http.content_type;
content:"image/"; startswith;
http.response_body;
content:"|ef bb bf 24|Content|20 3d 20 40 27 0d 0a 0d 0a 0d 0a 24|hexString"; startswith; fast_pattern;
content:"|22|4D|5f|5A|5f|"; distance:0;
Raw source ET MALWARE ASYNC RAT Payload Inbound · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE ASYNC RAT Payload Inbound";
    flow:established,to_client;
    http.content_type;
    content:"image/"; startswith;
    http.response_body;
    content:"|ef bb bf 24|Content|20 3d 20 40 27 0d 0a 0d 0a 0d 0a 24|hexString"; startswith; fast_pattern;
    content:"|22|4D|5f|5A|5f|"; distance:0;
    reference:md5,918e30fc0444c809edc8bc13919e085a;
    classtype:trojan-activity;
    sid:2054659; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_07_24, deployment Perimeter, malware_family AsyncRAT, confidence High, signature_severity Major, updated_at 2024_07_24;
)

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