ET EXPLOIT_KIT Possible Broken/Filtered RIG EK Payload Download

Query · suricata

flow:established,from_server;
http.header;
content:"Content-Length|3a 20|3|0d 0a|"; fast_pattern;
http.content_type;
content:"application/x-msdownload"; bsize:24;
file.data;
content:"|3d 28 28|"; within:3; endswith;
Raw source ET EXPLOIT_KIT Possible Broken/Filtered RIG EK Payload Download · Suricata
Esc
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 EXPLOIT_KIT Possible Broken/Filtered RIG EK Payload Download";
    flow:established,from_server;
    http.header;
    content:"Content-Length|3a 20|3|0d 0a|"; fast_pattern;
    http.content_type;
    content:"application/x-msdownload"; bsize:24;
    file.data;
    content:"|3d 28 28|"; within:3; endswith;
    classtype:exploit-kit;
    sid:2023768; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2017_01_27, deployment Perimeter, malware_family Exploit_Kit_RIG, performance_impact Low, confidence Medium, signature_severity Major, tag Exploit_kit_RIG, updated_at 2020_09_14;
)

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