Versions (2)
Version DetailsCurrent
Rev: 6 • Mar 9, 2011, 12:00 PMET MALWARE Post Express Inbound bad attachment
alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg:"ET MALWARE Post Express Inbound bad attachment"; flow:established,to_server; content:"Post Express|22|"; nocase; content:"Content-Disposition|3a| attachment|3b|"; nocase; content:"filename=|22|Post_Express_"; nocase; content:".zip|22|"; nocase; classtype:trojan-activity; sid:2012445; rev:6; metadata:created_at 2011_03_09, signature_severity Major, updated_at 2019_07_26;)
Mar 9, 2011, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules