01
detectionlint / library / spl
SSL Certificates with Punycode
The following analytic detects SSL certificates with Punycode domains in the SSL issuer email domain, identified by the prefix "xn--". It leverages the Certificates Datamodel to flag these domains and uses CyberChef for decoding. This activity is significant as Punycode can be used for domain spoofing and phishing attacks. If confirmed malicious, attackers could deceive users and systems, potentially leading to unauthorized access and data breaches.
02
quality67
fp risk—
forks0
views0
rule sourcelocked
Sign in to view the rule source
Free accounts can view the source for the top-ranked rules. Create one in seconds — no credit card required.
Sign in