“A new version of the BlackHole exploit kit is now out on the web and ready to start infecting. The developer of the toolkit, who goes by the handle ‘Paunch,’ recently announced the availability of Blackhole 2.0, which removes much of its trove of known and patched exploits, and replaces them with a whole new crop—along with features that will make it harder for antivirus companies and site owners to detect trouble.”
Source: BlackHole 2.0 gives hackers stealthier ways to pwn | Ars Technica