x
48h OFFER
If you're already a customer of
our homeusers protection,
renew now with a 50% off
RENEW NOW
x
SPECIAL OFFER
If you're already a customer of
our homeusers protection,
renew now with a 50% off
RENEW NOW
x
HALLOWEEN OFFER
take advantage of our
terrific discounts
BUY NOW AND GET A 50% OFF
x
CHRISTMAS OFFER
Buy the best antivirus
at the best price
BUY NOW AND GET A 40% OFF
x
SPECIAL OFFER
Buy the best antivirus
at the best price
BUY NOW AND GET A 50% OFF
x
BLACKFRIDAY OFFER
Buy the best antivirus
at the best price
TODAY ONLY UP TO 70% OFF
x
CYBERMONDAY OFFER
Buy the best antivirus
at the best price
(Only for homeusers)
TODAY ONLY UP TO 70% OFF
Active Scan. Scan your PC free
Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Ridnu.H

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Ridnu.H
Technical name:W32/Ridnu.H.worm
Threat level:Medium
Type:Worm
Effects:  

It writes romantic messages when the user accesses the Notepad, it switches off the screen every 5 seconds and replaces certain files related with images and videos with a copy of itself. It spreads via email and through the different system drives.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95/3.X

First detected on:May 16, 2008
Detection updated on:May 22, 2008
StatisticsNo

Brief Description 

    

Ridnu.H is a worm that writes romantic messages when the user accesses the Notepad and displays the message MR COOLFACE ! if the user accesses the option Run of the Start menu.

Additionally, it deletes the files it finds in the computer which have extensions related to images and videos, replacing them with a copy of itself keeping the original name of the files.

Ridnu.H spreads via email in a message which contains an attached file with an SCR extension and also spreads through the different system drives available.

Visible Symptoms 

    

Ridnu.H is easy to recognize, as when it is run, it shows the following symptoms:

  • If the user accesses the Notepad, it writes romantic messages that start with the text DEAR MY PRINCESS followed by one of the following messages, among others:
    - WHEN THE STARS FILL THE SKY, I WILL MEET YOU MY LOVELY PRINCESS
    - I AM FALLING IN LOVE WITH YOU !
    - I MISS YOU I AM STILL LOOKING FOR YOU !
    - I WILL BE WAITING FOR YOU !
    - PLEASE DO NOT FORGET OUR PAST !
  • It modifies the title of the window of My documents, changing it to the message Mr_Coolface:

  • It modifies the aspect of the toolbar of the Windows Explorer:

  • Sometimes, when Internet Explorer is run, it displays a website like the following:

 

In order to understand better some of the actions carried out by Ridnu.H, an explanatory video is at your disposal.

>