alert ftp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Machete FTP activity"; flow:established,to_server; content:"CWD |2e 2e 2f|KeyLog_History"; depth:21; classtype:trojan-activity; sid:2018980; rev:2; metadata:created_at 2014_08_22, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)