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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

ReverseClick.A

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:ReverseClick.A
Technical name:Trj/ReverseClick.A
Threat level:Medium
Type:Trojan
Effects:  

It switches primary and secondary buttons of the mouse, prevents files with an EXE extension from being run, hides the disk drives from My Computer, and disables the Windows Registry Editor and the Task Manager, among other actions. It does not spread automatically by its own means.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:March 9, 2007
Detection updated on:April 7, 2010
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

ReverseClick.A is a Trojan that switches primary and secondary buttons of the mouse and prevents files with an EXE extension from being run.

On the one hand, it hides the disk drives from My Computer and the icons from the Desktop, and disables the Windows Registry Editor and the Task Manager.

On the other, it disables the context menu and deletes several functionalities, such as the Find button from the Windows Explorer or the Recycle Bin from the Desktop.

Additionally, it prevents certain programs from being run, such asReverseClick.A does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.

Visible Symptoms 

    

ReverseClick.A is easy to recognize once it has affected the computer, as it displays the following symptoms:

  • When it is run, it switches primary and secondary buttons of the mouse and makes the Recycle Bin disappear from the Desktop.
  • When the computer is started, there are no icons and no taskbars in the Desktop, and there is a Notepad window open:

    Image of a system affected by Trj/ReverseClick.A