Rule History

SID: 2013891 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 1 • Nov 9, 2011, 12:00 PM

Message:

ET MALWARE Backdoor.Win32.Svlk Client Checkin

Rule:

alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Backdoor.Win32.Svlk Client Checkin"; flow:from_client,established; dsize:12; content:"|38 0d ff 0a d7 ee 9d d7 ec 59 13 56|"; depth:12; reference:md5,c929e8c75901c7e50685df0445a38bd0; classtype:command-and-control; sid:2013891; rev:1; metadata:created_at 2011_11_09, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Created:

Nov 9, 2011, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Oct 13, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules