Rule History

SID: 2014404 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 3 • Mar 20, 2012, 12:00 PM

Message:

ET DELETED W32/Bifrose.Backdoor Checkin Attempt via Facebook

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED W32/Bifrose.Backdoor Checkin Attempt via Facebook"; flow:established,to_server; content:"POST"; nocase; http_method; content:"/omaha/update.php?"; http_uri; content:"User-Agent|3A 20|Facebook Update/"; http_header; content:"winhttp|3b|"; http_header; reference:md5,61661202e320dd91e4f7e4a10616eefc; classtype:trojan-activity; sid:2014404; rev:3; metadata:created_at 2012_03_20, signature_severity Unknown, updated_at 2019_07_26;)

Created:

Mar 20, 2012, 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