ET POLICY Externally Hosted Fortinet Endpoint Management Server (EMS) FortiClient Invite URI Scheme Observed

Query · suricata

flow:established,to_client;
http.response_body;
content:"fabricagent://ems?inviteCode=_"; fast_pattern;
target:dest_ip;
Raw source ET POLICY Externally Hosted Fortinet Endpoint Management Server (EMS) FortiClient Invite URI Scheme Observed · 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 POLICY Externally Hosted Fortinet Endpoint Management Server (EMS) FortiClient Invite URI Scheme Observed";
    flow:established,to_client;
    http.response_body;
    content:"fabricagent://ems?inviteCode=_"; fast_pattern;
    reference:url,www.sonarsource.com/blog/caught-in-the-fortinet-how-attackers-can-exploit-forticlient-to-compromise-organizations-1-3/;
    classtype:misc-activity;
    sid:2066503; rev:1;
    metadata:affected_product FortiClient_EMS, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_12_30, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Informational, updated_at 2025_12_30;
    target:dest_ip;
)

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.