Rule History

SID: 2019902 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 2 • Dec 10, 2014, 12:00 PM

Message:

ET MALWARE VirRansom/VirLock Checkin Response

Rule:

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE VirRansom/VirLock Checkin Response"; flow:established,from_server; dsize:4; content:"|74 01 00 00|"; fast_pattern; flowbits:isset,ET.VirLock; reference:md5,fbeb6ebd498d85b1f404d7bb4acc3b89; classtype:command-and-control; sid:2019902; rev:2; metadata:created_at 2014_12_10, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_08;)

Created:

Dec 10, 2014, 12:00 PM

Updated:

Oct 8, 2019, 12:00 PM

DB Created:

Dec 10, 2014, 12:00 PM

DB Updated:

Jan 19, 2026, 10:35 PM

Filename:

rules/emerging-malware.rules