ET MALWARE Possible APT30 or Win32/Nuclear HTTP Framework POST

Query · suricata

flow:established,to_server;
content:"|0d 0a 0d 0a|";
byte_jump:4,1,relative,little,post_offset -6;
isdataat:!2,relative;
http.method;
content:"POST";
http.header;
content:"|20 28|compatible|3b 20|MSIE 6.0|3b 20|Win32|29 0d 0a|HOST|3a|"; fast_pattern;
http.header_names;
content:!"Accept";
content:!"Content-Type|0d 0a|";
content:!"Referer|0d 0a|";
Raw source ET MALWARE Possible APT30 or Win32/Nuclear HTTP Framework POST · 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 APT30 or Win32/Nuclear HTTP Framework POST";
    flow:established,to_server;
    content:"|0d 0a 0d 0a|";
    byte_jump:4,1,relative,little,post_offset -6;
    isdataat:!2,relative;
    http.method;
    content:"POST";
    http.header;
    content:"|20 28|compatible|3b 20|MSIE 6.0|3b 20|Win32|29 0d 0a|HOST|3a|"; fast_pattern;
    http.header_names;
    content:!"Accept";
    content:!"Content-Type|0d 0a|";
    content:!"Referer|0d 0a|";
    reference:url,www2.fireeye.com/rs/fireye/images/rpt-apt30.pdf;
    classtype:targeted-activity;
    sid:2020898; rev:6;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2015_04_13, deployment Perimeter, malware_family Nuclear, confidence Medium, signature_severity Critical, tag Exploit_Kit, tag Nuclear, updated_at 2020_11_05;
)

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