ET WEB_CLIENT Office Discovery HTA file Likely CVE-2017-0199 Request M2

Query · suricata

flow:established,to_client;
flowbits:isset,Office.UA;
http.content_type;
content:"application/hta"; nocase; endswith; fast_pattern;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET WEB_CLIENT Office Discovery HTA file Likely CVE-2017-0199 Request M2 · 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 WEB_CLIENT Office Discovery HTA file Likely CVE-2017-0199 Request M2";
    flow:established,to_client;
    flowbits:isset,Office.UA;
    http.content_type;
    content:"application/hta"; nocase; endswith; fast_pattern;
    reference:cve,cve-2017-0199;
    classtype:trojan-activity;
    sid:2024226; rev:3;
    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, confidence Medium, signature_severity Major, tag Exploit_kit_RIG, tag CISA_KEV, updated_at 2020_10_09;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.