Rule History

SID: 2031381 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 2 • Dec 15, 2020, 12:00 PM

Message:

ET MALWARE Dark Halo/SUNBURST SSL Cert Inbound (webcodez .com)

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Dark Halo/SUNBURST SSL Cert Inbound (webcodez .com)"; flow:established,to_client; tls.cert_subject; content:"CN=webcodez.com"; endswith; fast_pattern; reference:url,www.volexity.com/blog/2020/12/14/dark-halo-leverages-solarwinds-compromise-to-breach-organizations/; classtype:trojan-activity; sid:2031381; rev:2; metadata:attack_target Client_Endpoint, created_at 2020_12_15, deployment Perimeter, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_15;)

Created:

Dec 15, 2020, 12:00 PM

Updated:

Dec 15, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 15, 2025, 9:36 PM

Filename:

rules/emerging-malware.rules