It's the Phoenix Exploit Kit.
The Web site looks at the browser, platform, plugins, and other configuration information, then attempts a cocktail of browser, Java, Flash, and PDF exploits to download the W32/ZeuS malware. I've been seeing a lot of these lately.
W32/ZeuS is a modular, programmable, configurable malware strain that's sold in underground carder communities as a do-it-yourself kit. Once it infects a computer, it waits silently until a person attempts to visit a bank site or a site like PayPal. When that happens, it begins keystroke logging and then sends the person's login credentials to a server under the control of the person who set it up. It uses advanced encryption and other techniques to mask its communication with the server.
Antivirus software is almost 100% useless against ZeuS. Some antiviral programs can detect a handful of older variants; none that I know of can remove it.
