ET MALWARE FOX-SRT ShimRat check-in (Data)

Query · suricata

flow:established,to_server;
threshold:type limit, track by_src, count 1, seconds 600;
http.method;
content:"POST";
http.uri;
content:".php"; endswith;
http.request_body;
content:"Data$$"; fast_pattern;
content:"Data"; endswith;
pcre:"/Data\$\$\d\d/";
http.header_names;
content:!"Content-Type";
content:!"Referer|0d 0a|";
content:!"Cookie|0d 0a|";
Raw source ET MALWARE FOX-SRT ShimRat check-in (Data) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE FOX-SRT ShimRat check-in (Data)";
    flow:established,to_server;
    threshold:type limit, track by_src, count 1, seconds 600;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.request_body;
    content:"Data$$"; fast_pattern;
    content:"Data"; endswith;
    pcre:"/Data\$\$\d\d/";
    http.header_names;
    content:!"Content-Type";
    content:!"Referer|0d 0a|";
    content:!"Cookie|0d 0a|";
    reference:url,blog.fox-it.com/2016/06/15/mofang-a-politically-motivated-information-stealing-adversary/;
    classtype:trojan-activity;
    sid:2022900; rev:9;
    metadata:created_at 2016_06_15, signature_severity Major, updated_at 2022_03_24;
)

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