Sent visitors and my balance went to almost 1 ETH. To withdraw I had to input not only my ETH address, but also the private key (why?). Once done, had to download a "paper wallet" immediately quarantined by my antivirus.

Sent a request to your support

Let's say it doesn't sound really good. Any explanation?

Thanks

EDIT: to add some info, the zip file supposed to be the "paper wallet" contains the Cloxer.D!cl trojan, as detected by my antivirus