ET MALWARE TransparentTribe APT Maldoc CnC Checkin

Query · suricata

flow:established,to_server;
threshold:type limit, count 1, seconds 60, track by_src;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.request_body;
content:"relay=y"; startswith; fast_pattern; endswith;
http.content_type;
content:"application|2f|x-www-form-urlencoded";
http.header_names;
content:!"Referer";
content:!"Connection";
content:!"Accept";
Raw source ET MALWARE TransparentTribe APT Maldoc CnC Checkin · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE TransparentTribe APT Maldoc CnC Checkin";
    flow:established,to_server;
    threshold:type limit, count 1, seconds 60, track by_src;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.request_body;
    content:"relay=y"; startswith; fast_pattern; endswith;
    http.content_type;
    content:"application|2f|x-www-form-urlencoded";
    http.header_names;
    content:!"Referer";
    content:!"Connection";
    content:!"Accept";
    reference:url,mp.weixin.qq.com/s/pJ-rnzB7VMZ0feM2X0ZrHA;
    classtype:targeted-activity;
    sid:2028569; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_09_10, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag TransparentTribe, updated_at 2020_09_17;
)

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