alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Zeus User-Agent(z00sAgent)"; flow:to_server,established; http.user_agent; content:"z00sAgent"; startswith; reference:md5,e94fb19f3a38f9b2a775b925e4c0abe3; classtype:trojan-activity; sid:2016710; rev:4; metadata:created_at 2013_04_02, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_23;)