The SSL Blacklist (SSLBL) is a project operated by abuse.ch. The purpose of the project is:

Any data offered here is available for free (see Terms of Services), helping network administrators and security analysts to protect their network and customers from botnets.

If you are a vendor you may use data from SSLBL for both, commercical and non-commercial purpose without any limitation (see Terms of Services). If you need a customized format, there is the possibility to get one. If you wish to do so, please contact me under coSntacPtAmeM@abuse.ch (remove all capital letters).

SSLBL offers the following feeds: