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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Naiva.A

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Naiva.A
Technical name:W97M/Naiva.A
Threat level:Low
Type:Virus
Subtype: Trojan
Effects:  

It drops the Trojan detected as Ranky.FY on the affected computer. It can also create, delete or modify files. It does not spread automatically by its own means.

Affected platforms:

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

First detected on:Oct. 24, 2005
Detection updated on:May 14, 2009
StatisticsNo

Brief Description 

    

Naiva.A is a macro Trojan that passes itself off as a Word document containing information about the bird flu epidemic. Once opened, Naiva.A drops the Trojan detected as Ranky.FY. It can also handle files, deleting, modifying or creating them.

Naiva.A does not infect other Word documents, its main function is to bear a copy of Trj/Ranky.FY, in order to drop it on the affected computer.

Naiva.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 

    

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

  • It reaches the computer in a Word document that contains information about the bird flu epidemic. These are the two possible titles of the text:
    Outbreaks in North America
    What is avian influenza (bird flu)?
  • If the macro security level incorporated in Word is medium, a warning message will be displayed indicating the document contains macros. If the security level is high or very high, the macros will not be run.