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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Horo

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Horo
Technical name:W32/Horo
Threat level:Low
Alias:W32.Horo@mm, W32/Horo@MM, WORM_WCONN.B
Type:Worm
Effects:  

It creates multiple copies of itself and modifies the Windows Registry.

Affected platforms:

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

Detection updated on:Jan. 15, 2003
StatisticsNo

Brief Description 

    

Horo is a worm that reaches computers in an e-mail message with the subject Today's free horoscope and the attached file HOROSCOPE.SCR.

In addition, Horo creates multiple copies of itself in the Windows directory and modifies the Windows Registry. As a result, Horo significantly reduces the memory available on the hard disk and could prevent the affected computer from starting up correctly.

Once it has affected the computer, Horo sends itself out to all the contacts in Outlook Address Book.

Visible Symptoms 

    

Horo is easy to recognize, as it reaches the computer in an e-mail message with the following characteristics:

  • Subject:
    Today's free horoscope
  • Message:
    Open this screen saver file to see today's horoscope. No registrions. No fees. And No ugly lady in front of you! ABSOLUTE FREE!!!!!!!!!!!!!!!!
  • Attachments:
    HOROSCOPE.SCR

In addition, Horo creates a shortcut to the file HOROSCOPE.SCR In the Windows Desktop.

Sometimes it also displays the following message on screen: