alert smtp any any -> [$HOME_NET,$SMTP_SERVERS] any (msg:"ET EXPLOIT Possible Zimbra Arbitrary File Upload (CVE-2022-41352) M4"; flow:established,to_server; file.data; content:"070707"; startswith; content:"/jetty"; within:100; content:"/webapps/zimbra/public"; within:50; fast_pattern; reference:url,attackerkb.com/topics/1DDTvUNFzH/cve-2022-41352/rapid7-analysis; reference:cve,2022-41352; classtype:attempted-admin; sid:2039143; rev:1; metadata:attack_target SMTP_Server, created_at 2022_10_11, cve CVE_2022_41352, deployment Perimeter, deployment Internal, confidence Low, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_11;)