There has been a virus which is spreading through MSN / Live messenger which shows you a link in the IM window with a text which says
“Hi,this is your photo? – some link here
Do not click on the link on this message, this takes you to a url which infects your computer with this virus. It downloads a virus file called Picture_2525.exe and installs it.
If you have accidentally clicked this link, below is the method to remove this virus manually.
We recommend that you always use a good antivirus tool, free or paid, with real-time protection which can save you from such viruses.
If this virus has already infected your computer, open the task manager by pressing Shift + CTRL + ESC key together and kill the following tasks :
After this you need to kill the virus service. Press Windows Key + R and type the following command and press enter:
sc delete svlostServices
After this is open the following folder - c:\Windows\System32 and delete the below mentioned files:
Now clean the Registry entries by running following commands using Windows Key + R using the run prompt:
reg delete "hkcu\software\microsoft\internet explorer\main" /v default_page_url /f
reg delete "hkcu\software\microsoft\internet explorer\main" /v "Start Page" /f
As a precautionary measure, change your MSN / Windows Live Password.
[ Source – Raymond.cc ]