alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Zemot Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/mod_articles"; depth:13; fast_pattern; content:"/"; endswith; http.header_names; content:"User-Agent"; content:!"Accept-"; content:!"Referer"; reference:md5,9a705a2c25a8b30de80e59dbb9adab83; classtype:command-and-control; sid:2018644; rev:6; metadata:created_at 2014_07_07, malware_family Win32_Zemot, signature_severity Major, updated_at 2020_09_15;)