alert http any any -> [$HOME_NET,$SMTP_SERVERS] any (msg:"ET MALWARE JS ZimReaper Zimbra Mailbox Archive Export"; flow:established,to_server; http.uri; content:"|2f|home|2f 7e 2f 3f|fmt|3d|tgz|26|meta|3d|0|26|query|3d|"; fast_pattern; startswith; content:"query|3d|date|3a 2d|"; content:"d AND |28|not in|3a|junk|29|"; distance:0; http.method; content:"GET"; reference:url,www.proofpoint.com/us/blog/threat-insight/ta488-targets-zimbra-mailservers-half-click-exploits; classtype:trojan-activity; sid:2071245; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_07_21, deployment Perimeter, malware_family ZimReaper, confidence High, signature_severity Major, updated_at 2026_07_21, mitre_tactic_id TA0009, mitre_tactic_name Collection, mitre_technique_id T1114, mitre_technique_name Email_Collection;)