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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Encyclopedia GetVirusCard True 0

Yabarasu.A

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

It hides the extensions of the files and prevents the tooltip from being viewed in the files. It does not spread by its own means.

Affected platforms:

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

First detected on:March 3, 2007
Detection updated on:April 22, 2007
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Yabarasu.A is a Trojan that hides the extensions of the files and prevents the tooltip from being viewed in the files. A tooltip is a tool that is activated when the cursor is over a file and that gives information about the characteristics of that file.

Additionally, it hides all the subfolders of the root directory of the C: drive and creates a copy of the Trojan for each subfolder with the same icons as the original ones and with a hidden EXE extension. This way, whenever the user runs any of these subfolders, not only the original subfolder is run, but also Yabarasu.A.

Yabarasu.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 

    

Yabarasu.A is easy to recognize once it has affected the computer, as when the system is restarted, the following message is displayed:

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