I used to run a check for various malicious certificates installed by Superfish and other Komodia software, but it's no longer active.
The certificates and private keys are available on Github
For Superfish there is now an official removal Utility from Lenovo. I am not aware of any generic tool to remove the others. You need to manually uninstall the software first and the certificate afterwards.
If you're interested in more technical background look here. Filippo has another test that is more user friendly, but right now it doesn't detect as much as this one.
The certificates and keys were extracted by Robert Graham and slipstream / raylee.