Virus sequenced in Ableton Live

[oscillator]

I have some strange things when i try to automate a sequence in Ableton Live.

For example if i record a synth line (i mean only midi recording) and move a knob on the Virus, Ableton seems to record some other cc parameters that i don't have moved yet.
So when i press play i don't have the original patch with only one knob tweaked, but a very different patch created by Ableton's crazy midi cc recording.

Someone else has had this problem?