alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET INFO McAfee AV Download (set)";
flow:established,to_server;
flowbits:set,ET.Mcafee.Site.Download;
flowbits:noalert;
http.method;
content:"GET";
http.user_agent;
content:"McAfee ePO"; fast_pattern;
http.host;
content:"update.nai.com";
classtype:not-suspicious;
sid:2031317; rev:1;
metadata:created_at 2020_12_11, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_11;
)