This mod allows you to specify blocks creepers should try to reach and destroy. For example add the mechanical drill from Create to the config, now there will always be a risk using it to extract ores (note creepers from this mod wont attack entities).
There's some more options like spawn distance etc in the config.
I recommend using EnchancedAI with this mod (Probably other AI mods works fine as well).
I wont update this to any other version, this is mainly for my modpack.