Click on screenshot to zoom
Danger level 8
Type: Trojans
Common infection symptoms:
  • Connects to the internet without permission
  • Installs itself without permissions
  • Slow Computer
  • Slow internet connection
  • System crashes


Worm.Darby.O is a computer infection that was discovered in 2005, but it is still out in the wild. The worm can distribute itself easily and cause medium damage to the system. It should be noted that worms do not infect system files, but they create their own infection files themselves. As far as Worm.Darby.O is concerned, its file size is no bigger than 140.470 bytes.

This worm can spread in three main methods – via spam email, via local network shared by several computers and via p2p networks (like torrents, for example). Worm.Darby.O infects a whole list of operating systems, including Windows 2000 and Windows XP. Once it is inside your system, it can use its own email engine to spread further, thus hogging your bandwidth and slowing down the overall Internet speed. Also, Worm.Darby.O lowers system security settings and modifies the registry to run automatically at every system start. Also, there is one symptom that is a definite sign of Worm.Darby.O infection, and it appears right after the execution of an installation file.

It is an error message, displayed while Worm.Darby.O is being installed:

Impossible to open the file, random_characters_string.exe this total or partially damaged

If you see this message on your screen, you are definitely infected with Worm.Darby.O. Also, another specific feature of this worm is that the spam email messages delivering the worm are usually written in Spanish (although there is a list of English spam messages as well). For example:

Subject: Hey
Body: mira la imagen 30 segundos y luego mira a otra parte y veras algo sorprendente (buena ilusion optica, casi alucinacion)
Attachments:, Imagenes


Subject: Drawings (This Very Good)
Body: you Look at yourself this ;)
Attachments:, MORE Drawings

After the infection Worm.Darby.O (which is written in Visual Basic programming language) tries to stop a whole list of processes, in order to lower down the system security levels. You need to acquire a powerful security tool and remove Worm.Darby.O from your computer, otherwise soon enough other malware will make use of the week system’s security levels and your computer will become so slow, you will no longer be able to operate it. Do not wait and solve this problem now!

Download Spyware Removal Tool to Remove* Worm.Darby.O
  • Quick & tested solution for Worm.Darby.O removal.
  • 100% Free Scan for Windows

How to manually remove Worm.Darby.O

Files associated with Worm.Darby.O infection:


Post comment — WE NEED YOUR OPINION!

Please enter security code:
This is a captcha-picture. It is used to prevent mass-access by robots.