Welcome to the Virus Encyclopedia of Panda Security.
|Alias:||Obfuscated,Swizzor, Trojan-Downloader.Win32.Agent.msi,, mp3search, C2 Media, Swizzor|
It adds a toolbar to Internet Explorer and displays pop-up advertisements.
|First detected on:||Nov. 26, 2003|
|Detection updated on:||May 25, 2010|
|Yes, using TruPrevent Technologies
Lop is an adware type program, which offers users an application in exchange for viewing a series of advertisements.
Lop only affects Windows 2003/XP/2000/NT operating systems. It is an executable file that installs a DLL (Dynamic Link Library), which registers itsef as a BHO (Browser Helper Object) in the browser Internet Explorer.
Most versions of Lop add a toolbar to the browser Internet Explorer. This toolbar will allow users to carry out Internet searches, but it also displays a large number of pop-up advertisements.
Additionally, Lop changes the Internet Explorer homepage, in order to display the homepage of the company that created Lop, which several companies use in order to advertise their products. It also creates shortcuts to different website, both in the Windows Desktop and in the directory Favorites.
Lop causes an error and closes the applicaction explorer.exe if the compressor WinZip is installed and the user attempts to access Lop contextual menu.
Lop is easy to recognize, as it cahnges the browser Internet Explorer homepage to the one below:
In addition, most versions of Lop add a toolbar to Internet Explorer.