alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Likely Geodo/Emotet Downloading PE"; flow:established,to_server; http.uri; content:".exe"; endswith; http.user_agent; bsize:48; content:"Mozilla/4.0 (compatible|3b|MSIE 7.0|3b|Windows NT 6.0)"; fast_pattern; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; classtype:trojan-activity; sid:2018224; rev:6; metadata:created_at 2014_03_05, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_10;)