Well i got this one, i just tested it and it works. It's called
squirrelbotloader
Get a fresh mbot folder , without mbotloader, mbotloaderex, mbotcrack.dll , mbotcrack_patch.dll(if you have it).
I don't remember where i downloaded this crack so i can't give credit or direct link sorry.
Here is the virustotal scan but i suggest to always scan by yourself the files you download.