Rule History

SID: 2020943 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 4 • Apr 17, 2015, 12:00 PM

Message:

ET MALWARE Possible Dridex downloader SSL Certificate

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Possible Dridex downloader SSL Certificate"; flow:established,to_client; tls.cert_serial; content:"00:BE:EF:3B:E8:9F:06:3C:8D"; fast_pattern; tls.cert_subject; content:"O=Global Security"; content:"CN=example.com"; classtype:trojan-activity; sid:2020943; rev:4; metadata:attack_target Client_Endpoint, created_at 2015_04_17, deployment Perimeter, confidence Medium, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_04_12;)

Created:

Apr 17, 2015, 12:00 PM

Updated:

Apr 12, 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