Rule History

SID: 2018144 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 2 • Feb 15, 2014, 12:00 PM

Message:

ET SMTP EXE - ZIP file with .pif filename inside

Rule:

alert smtp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SMTP EXE - ZIP file with .pif filename inside"; flow:established; content:"|0D 0A 0D 0A|UmFyI"; pcre:"/^[A-Za-z0-9\/\+\x0D\x0A]+?(LnBpZ|5waW|ucGlm)/R"; classtype:bad-unknown; sid:2018144; rev:2; metadata:created_at 2014_02_15, signature_severity Informational, updated_at 2019_07_26;)

Created:

Feb 15, 2014, 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-smtp.rules