Suspicious Behaviour on the Part of the Call of Warhammer Installer?

Twice now I've tried to install the first part of the Call of Warhammer installer (I downloaded all fourteen parts from the fourth mirror, Gigabase, I believe) and both times the installer set off my antivirus because apparently the installer was "behaving" similarly to a worm (PDM.Worm.P2P.generic in this case). The antivirus promptly prevented the installer from running and quarantined the .exe file.

So, what's the deal with that? Is anyone else experiencing a similar issue? Is there legitimately something unpleasant going on with the Call of Warhammer installer (perhaps only from the files hosted on the fourth mirror site)?

Thanks in advance guys.

Can you give more info, what av are you using? I downloaded from the fourth mirror in parts. I have Avast, no warnings, runned full system check yesterday with it, with Ad-Watch, and with MS security essentials, nothing. Never had any virus wit any mod, including CoW 1.0-1,5. I highly doubt there is anything suspicious in the mod files, propably your av giving false alarms, but hard to say without knowing what your using.

Edit:
http://winscp.net/forum/viewtopic.php?t=7856
Just googled it, are you using Kaspersky? If so, I HIGHLY recomend changing it, it did twice delete windows files from me in the past, and I had to roll back to old "save". It's totally unreliable. I have tryed AV, Norton, F-Secure, Kaspersky, but after that I changed to Avast, and it has been reliable for years.

Yep, it's probably a false alarm, because I scanned all of the files yesterday before I installed them and got no warnings of any description. I'm also doing a scan of my whole computer right now just to be sure.

In any case, I'm using Kaspersky Antivirus, and it has given me false alarms before. It claimed that something was up (I didn't really give it any credence, honestly) both when I launched Rome: Total War and Shogun 2: Total War for the first time on this new computer, which I've had for a few months.

I edited my last post, but I really suggest you get rid of Kaspersky... As I sayed, it ed up my win twice when I used it, years back tought, but I'm never going to test it again.

Thanks for the help and the advice Kahvipannu. It's much appreciated.