False positive on my software

Hello, I have a problem that is bothering me a lot. Since yesterday AVAST is accusing my software as a false positive. I already sent an email and got no answer. Many users are experiencing problems with this, please help.

VirusTotal result: https://www.virustotal.com/pt/file/271481b458dc9653fed9a0ecbed203010f6555e26a78082052190b198d4ffb19/analysis/

He points at AVAST OK, but using the software on the desktop it accuses as virus.

The software can be downloaded from: http://launcher.psoul.net/classic/update.zip

Thanks.

tws (17.47.17308 1.0.2.2108 2014-06-16) detects it as Worm.AutoRun.csi.bqpf

You also have other problems:
Website/IP is blacklisted:
http://zulu.zscaler.com/submission/show/158920e5205893246e9b9fbcdd44931b-1410110288

Malicious sites on the same IP/ASN:
http://urlquery.net/report.php?id=1410110439899

Right, Im talking about the software, not the website.
The software was OK until yesterday and our staff doesnt have submited any update. What I can do to solve this issue?

Send the file to virus@avast.com Subject: false positive in a password protected archive (Dont forget to tell them the password)

Or use this form : http://www.avast.com/contact-form.php (Choose report false virus alert in file)

Sent, :). Thanks.

I suggest you also contact TWS.
http://www.tws-enterprise.co.uk/contact.asp

Don’t know if you can submit the file to them, but have a look around at their website.

I am talking about the software too.
Just pointing out that something should be done by your webhost before your entire site gets blocked.

I will send too, thanks.

Another thing, I use a shared host with these files. This can be the problem?

[Sorry for double posting]