ET MALWARE Possible Bedep Connectivity Check (2)

Query · suricata

flow:established,to_server;
urilen:13;
http.method;
content:"POST";
http.uri;
content:"/timezone/0/0"; fast_pattern;
http.content_len;
byte_test:0,=,0,0,string,dec;
http.host;
content:"www.earthtools.org"; bsize:18;
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET MALWARE Possible Bedep Connectivity Check (2) · 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 Possible Bedep Connectivity Check (2)";
    flow:established,to_server;
    urilen:13;
    http.method;
    content:"POST";
    http.uri;
    content:"/timezone/0/0"; fast_pattern;
    http.content_len;
    byte_test:0,=,0,0,string,dec;
    http.host;
    content:"www.earthtools.org"; bsize:18;
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:url,malware-traffic-analysis.net/2014/09/09/index.html;
    classtype:trojan-activity;
    sid:2020491; rev:10;
    metadata:created_at 2015_02_20, confidence Medium, signature_severity Major, updated_at 2020_12_22;
)

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