alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg:"ET CURRENT_EVENTS UPS Spam Inbound"; flow:established,to_server; content:"name=|22|"; nocase; content:"UPS"; nocase; within:11; content:".zip|22|"; within:74; nocase; pcre:"/name=\x22([a-z_]{0,8})?UPS(\s|_|\-)?[a-z0-9\-_\.\s]{0,69}\.zip\x22/i"; classtype:trojan-activity; sid:2014828; rev:3; metadata:created_at 2012_05_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)