Rule History

SID: 2012275 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 2 • Feb 3, 2011, 12:00 PM

Message:

ET DELETED Post Express Inbound SPAM (possible Spyeye)

Rule:

alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 (msg:"ET DELETED Post Express Inbound SPAM (possible Spyeye)"; flow:established,to_server; content:"Content-Disposition|3A|attachment|3b|"; nocase; content:"filename=|22|Post_Express_Label_"; nocase; reference:url,nakedsecurity.sophos.com/2011/02/01/outbreak-post-express-service-malware-attack-spammed-out; classtype:trojan-activity; sid:2012275; rev:2; metadata:created_at 2011_02_03, signature_severity Unknown, updated_at 2019_07_26;)

Created:

Feb 3, 2011, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-deleted.rules