Hitbot action on my site ?

[cow]

If I look into my stats of CjOverkill I see that most sites gets back a normal amount of traffic.
A few sites though get much much more all of a sudden (and I am not boosting them).

I also got 2 new sites added to my script and they send me a lot of hits of which I doubt is real traffic.
The productivity in the script shows a great percentage and both sites are thumbnail gallery posts which normally provide me a worse productivity figure as they do right now.

What should I do ?
How can I check if I am struck by a hitbot ?

Moo

[Genbucks: Sean]

Place a hidden link on your site which no human eyes would likely see...set it up with an id in CJOverkill and then sit back and wait to see if it gets whacked alot. If it gets hit look up the referring IP/domain

[cow]

Thanks Sean, I will do that right away.

Moo