Comodo is constantly improving its whitelist. This makes CIS more user friendly but does, in some circumstances, have some downsides. Some malware may sometimes be trusted because it is signed by a trusted certificate or perhaps the vendor was trustworthy, but then changed their ways. This is rare, but it does happen.
Regardless of how it happens it’s important to take action against this. If you find malware that is whitelisted, but seems suspicious, please report it here. The name of the trusted vendor, or any other information, is also useful.
Upload these files to one of the following services and post a link to the results:
Helpful details include:
link to the signed malware
screenshots of the certificate details showing the signer organization or certificate serial number or other details which will help us identify the certificate
a copy of the actual certificate if possible
This article also describes how to report fraudulent and phishing emails using Comodo SSL/TLS certificates (but this is not pertinent for this topic).