Be careful if you're trusting any of those sandbox services for accurate results though - some malware is able to detect the VM they're running in and refuse to run the malicious payload. Often times legitimate cracks will be distributed on sources like Usenet using a "binder" to attach the malicious payload the an otherwise perfectly fine crack.
As a side note, for some reason, there's way more malware on usenet than bittorrent, I've even found it on games on major NZB sites, possibly just due to the seed counts weeding out the malicious ones via simple popularity in the public bittorrent world.
As a side note, for some reason, there's way more malware on usenet than bittorrent, I've even found it on games on major NZB sites, possibly just due to the seed counts weeding out the malicious ones via simple popularity in the public bittorrent world.