Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Single char EXE direct download likely trojan (multiple families)"; flow:established,to_server; http.uri; content:".exe"; nocase; fast_pattern; pcre:"/\/[a-z0-9A-Z]\.exe$/i"; classtype:trojan-activity; sid:2018581; rev:4; metadata:created_at 2014_06_18, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_17;)