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Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Nabload.CW

Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Nabload.CW
Technical name:Trj/Nabload.CW
Threat level:Medium
Type:Trojan
Effects:  

It downloads the Trojan Bancos.MO from a certain website. It reaches the computer in a file with the Windows Media Player icon that usually has the file name VIDEO[1].EXE.

Affected platforms:

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

First detected on:May 7, 2006
Detection updated on:May 10, 2006
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Nabload.CW is a Trojan that attempts to download and run other Trojan detected as Bancos.MO from a certain website.

Nabload.CW 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.

It has been detected that Nabload.CW reaches the computer in a file with the Windows Media Player icon that usually has the following file name: VIDEO[1].EXE.

Visible Symptoms 

    

Nabload.CW is easy to recognize, as it shows the following sympthoms:

  • It reaches the computer in an executable file that passes itself off as a Windows Media Player file:
  • When it is run, it displays a window that imitates the Windows Media Player one. But, it is actually an animated GIF:

  • Then, it displays the following false error message, which says that it is necessary to download several components in order to see the video:

  • If the user runs the file VIDEO[1].EXE again, the following error message is displayed on the screen: