Troj/AdClick-N is a variant of a Trojan that attempts to connect to various websites and then display selected banner advertisements.
When executed Troj/AdClick-N copies itself to the Windows System folder with the filename Winpup32.exe and sets the following registry entries:
HKLM\Software "12212"="1"
HKLM\Software\Microsoft\Windows\CurrentVersion\
Run "win32app"= <path to the Trojan copy>
Troj/AdClick-N attempts to connect the website www.undergroundlair.net.