ET WEB_CLIENT Office UA FB SET

Query · suricata

flow:established,to_server;
flowbits:set,Office.UA;
flowbits:noalert;
http.user_agent;
content:"Microsoft Office"; fast_pattern; startswith;
http.header_names;
content:!"Referer|0d 0a|";

Rule dependencies

Feeds into

Raw source ET WEB_CLIENT Office UA FB SET · 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 WEB_CLIENT Office UA FB SET";
    flow:established,to_server;
    flowbits:set,Office.UA;
    flowbits:noalert;
    http.user_agent;
    content:"Microsoft Office"; fast_pattern; startswith;
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:cve,cve-2017-0199;
    classtype:trojan-activity;
    sid:2024225; rev:2;
    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_04_19, deployment Perimeter, malware_family Exploit_Kit_RIG, performance_impact Low, signature_severity Major, tag Exploit_kit_RIG, updated_at 2020_08_05;
)

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