Harry Potter and the Half-Blood Prince malware
Nowadays there are places where you can watch movies brand new movies for free.
Malware writers are making use of this thing also.Now a malware is spreading commonly known as harry potter malware which is using the eagerness of people who want to watch the harrypotter new movie.
Cybercriminals are pushing “blackhat” search engine optimization tactics to target the most popular file sharing and P2P networks, pursuing those interested in upcoming movie releases and in particular taking advantage of the sizeable Harry Potter fan base wanting to download the movie in advance of its screening.
the bad guys are populating sites like Digg.com and Blogspot and sending spam e-mail messages with enticements to ‘Watch “Harry Potter and the Half-Blood Prince online free”’ and links to a bogus film site. They are also flooding the comment sections of these sites with various Harry Potter related keywords, to try to trick search engines into displaying their site in search results.
People who click on the play button for this movie will be asked to install a file for installing the streaming pack or codec pack.Normal users will install this file to watch the movie.
Actually this file is nothing but a malware which is koobface worm in almost all cases. This can include keyloggers, Remote administration tools, and even backdoors. the result is you will be using a compromised system by which attackers can use your credit card,emails,social community,etc etc.
So beware of it.think twice before downloading any files like this.. 
the screen shot for an example is given here.
