Rule History

SID: 2019155 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 5 • Sep 10, 2014, 12:00 PM

Message:

ET MALWARE Possible Zeus GameOver Connectivity Check 2

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Possible Zeus GameOver Connectivity Check 2"; flow:established,to_server; urilen:1; http.host; content:"windowsupdate.microsoft.com"; bsize:27; http.connection; content:"Close"; fast_pattern; startswith; http.header_names; content:!"Accept|0d 0a|"; content:!"Referer|0d 0a|"; reference:md5,236bde81355e075e7ed6bcdc60daefcb; classtype:trojan-activity; sid:2019155; rev:5; metadata:created_at 2014_09_10, deprecation_reason Performance, performance_impact Significant, confidence Medium, signature_severity Major, updated_at 2024_04_29;)

Created:

Sep 10, 2014, 12:00 PM

Updated:

Apr 29, 2024, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-malware.rules