Rule History

SID: 2037928 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Aug 4, 2022, 12:00 PM

Message:

ET MALWARE Observed Malicious SSL Cert (RedGuard Framework)

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Observed Malicious SSL Cert (RedGuard Framework)"; flow:established,to_client; tls.cert_serial; content:"17:01:91:E3:A5:0D:5C:2C"; reference:url,github.com/wikiZ/RedGuard; classtype:trojan-activity; sid:2037928; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_08_04, deployment Perimeter, malware_family RedGuard, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_04;)

Created:

Aug 4, 2022, 12:00 PM

Updated:

Aug 4, 2022, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 1, 2025, 8:35 PM

Filename:

rules/emerging-malware.rules