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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Encyclopedia GetVirusCard True 0

Nono.A

 
Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Nono.A
Technical name:W97M/Nono.A
Threat level:Low
Alias:Nono, NoNo
Type:Virus
Effects:  It displays a dialog box with the text Run Animation?. It then shows different texts on screen and blocks the Word program temporarily.

Affected platforms:

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

Detection updated on:Nov. 13, 2002
StatisticsNo
Family:VALENTIN

Brief Description 

    

Nono.A is a macro virus that activates on the 10th of every month, displaying a dialog box with the text Run Animation?. Depending on the user’s answer to this question, Nono.A will block the Word program temporarily or change the Word's window caption and insert a text in Word documents.

Additionally, as most macro viruses:

  • It reaches computers in an infected Word 97 document (a file with a DOC extension). Then it infects the Word template (NORMAL.DOT file) and quickly spreads to all the Word documents based on this template.
  • It disables the Word macro virus protection, in an attempt to hide its presence from users.

Visible Symptoms 

    

A clear indication that Nono.A has infected your computer is if the following dialog box appears on the screen:

This will occur on the 10th of every month, when the minute value in the system date stamp is 30 and the second value equals or exceeds 16.

If the user clicks Yes in the dialog box, Nono.A blocks the Word application, preventing them to use it until the next day.

However, if their answer is No, Nono.A carries out the following actions:

  • It changes the name of the Word's window caption to VicodinES / TNN / CB –Nono.
  • It shows the text VicodinES ->   in Word’s status bar, moving it from left to right.
  • It inserts the text Microsoft WordLovesUSER NAME– Nono in the place where the cursor is currently located, as well as in Word’s window caption and the Word icon in the taskbar.