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We provide tutorials which helps you to remove a botnet infection from your computer. You will find detailed instructions on how to use this program at the respective menu option.


With the help of our EU-Cleaner you can clean your computer of a range of malware. At the moment we provide the following EU-Cleaners of your choice to download:

Important Notice

  • To avoid any problems, please read and follow the EU-Cleaner Instructions before downloading and executing.
  • Be sure to secure your personal data before beginning the clean-up i.e. graphics, documents, videos. You will find instructions on backing-up your data in Information Resource for Windows Backup Software NTBackup.
  • The EU-Cleaner does not replace anti-virus software. After your computer has been cleaned, you should scan your computer at regular intervals with up-to-date anti-virus software.
  • In some cases your computer may not start after malicious files have been removed, and you will need to carry out a re-installation.

Minimum Requirements for the EU-Cleaner powered by Avira

  • Pentium or later, min. 266MHz
  • Windows XP with at least SP 2, (32 or 64 Bit)
  • Windows Vista (32 or 64 bit, SP 1 or higher recommended) Windows 7 (32 or 64 bit)
  • Min. 150 MB free disk space
  • Windows XP, min. 192 MB memory
  • Windows Vista, Windows 7, min. 512 MB memory
  • Internet connection for updating and initial download

Data Privacy Notice for EU-Cleaner

The Avira EU-Cleaner is a product of Avira Operations GmbH & Co. KG, published in cooperation with the Anti-Botnet Advisory Centre of eco - Association.

Avira Operations GmbH & Co. KG, Kaplaneiweg 1, 88069 Tettnang
Eco – Association of the German Internet Industry e.V., Lichtstrasse 43h, 50825 Cologne.

It will not be necessary to provide any personal-related data for downloading and using the EU-Cleaner.

What data will be collected from the Avira EU-Cleaner?

The Avaira EU-Cleaner collects and processes data only in connection with updates. Updates will be used for the purpose in effectively freeing your computer of threats and to keep the product itself up-to-date. By implementing updates, the Avira EU-Cleaner connects with the update server at Avira Operations GmbH & Co. KG. The update server holds the latest product versions (if such exists), in particular the latest virus signatures and detection routines. This way the Avira EU-Cleaner will always be up-to-date and will be able to free your computer from the latest threats. With this update method, the so-called UAS (User Agent String) including the ip-address from your computer will only be transferred, and saved in the weblog on Avira’s update server.

The UAS includes standardized information on the following technical system values:

- Information, that it is dealing with the Avira EU-Cleanerr
- The tool’s version number that the Avira EU-Cleaner uses, in order to load updates (Avira Webloader)
- The product language
- The unique serial number, which is randomly generated whilst being copied

Further data will not be collected nor processed.

In what scope will the transferred update data be used?

The collected data will be anonymous and used exclusively for creating statistics. The statistical information serves mainly for improvement and further devolvement of the Avira EU-Cleaner.

Which data will otherwise be collected and transferred?

By using the Avira EU-Cleaner you can send the scan results in form of a report to the Anti-Botnet Advisory Centre. The report serves solely for product improvement and will only be used for statistically purposes. Sending the report is absolutely voluntary. You will be asked after every scan whether you want to send the report or not. You can view the contents of the report before it is sent. The contents of the report will be encrypted and anonymised (no personal data will be transferred). The transfer itself will be via an encrypted connection.

I have read and acknowledge the data privacy notice and now I can download Avira EU-Cleaner.

DOWNLOAD EU-Cleaner powerd by Avira

The instructions are also available as a PDF for downloading:
Guidelines EU-Cleaner Avira

Minimum System Requirements for the EU-Cleaner powered by SurfRight

  • 9 MB free diskspace
  • Windows XP with at least SP 2, min. 256 MB RAM
  • Windows Vista, min. 512 MB Ram
  • Windows 7, min. 1 GB RAM
  • Internet connection for updating and initial download

DOWNLOAD EU-Cleaner powered by SurfRight

You can find instructions in our blog:
Guidelines EU-Cleaner SurfRight

DE-Cleaner System Rescue DVD

In certain circumstances, it may be that your computer is so severely infected that an anti-virus update is no longer possible, or infected files cannot be deleted. In this case, the DE-Cleaner System Rescue DVD should be used. The DVD is able to remove malicious files from your system where conventional methods have failed.

Important Advice:

  • To prevent any problems, please read and follow the instructions on DE-Cleaner System Rescue DVD before downloading and running.
  • Be sure to secure your personal data before you begin cleaning, i.e. graphics, documents, or videos.
  • You will need a blank DVD, a DVD burner and a DVD burning program. If you do not have a DVD burning program, please install a program which is able to burn DVD images (ISO), e.g. the freeware version CDBurnerXP.
  • Please note: Burn the System Rescue DVD in bootable ISO format (not a data CD!). Instructions for burning the DVD can be found at Instructions image burning.
  • Instructions for creating a bootable USB-Stick from within the windows environment can be found on our blog at Anti-Bot CD v3.5 goes USB.
  • So that your PC starts from the DVD drive and not from its hard drive, you may need to Change Boot Sequence in BIOS.
  • Once your computer has been checked by the System Rescue DVD, you should nonetheless scan your computer with an anti-virus product.
  • If your PC no longer starts after the removal of malicious files, we suggest a new installation.

Minimum System Requirements for the DE-Cleaner System Rescue DVD

  • 1 GB RAM
  • DVD Drive
  • Active Internet Connection (recommended)

DOWNLOAD DE-Cleaner System Rescue DVD - Version 3.5

DOWNLOAD DE-Cleaner System Rescue DVD - Version 3.5 - USB Stick

The instructions are also available as a PDF for downloading and printing:
Instructions DE-Cleaner System Rescue DVD v3.5

Online Scanner

Online scanners have the advantage that they do not have to be installed and can be run straight from a browser. The examination by an online scanner can take several hours depending on configuration, the amount of data and the number of programs installed on your computer.

Please note that an online scanner does not replace any permanently installed anti-virus software!

A selection of free online scanners:

Reinstall Windows

If you were unable to remove a bot, it would be advisable to re-install Windows. We have made instructions available to assist you in re-installing Windows XP, Windows Vista and Windows 7.

Make sure you secure your data on an external storage medium before you re-install Windows.

Installation Instructions

Backup Programs

It is essential that you secure your personal data before a new installation and/or before cleaning the computer. The built-in Windows backup program should be sufficient. It is also possible to use other free programs.

Regarding the security of your computer please consider the following basic rules:

  1. Check your computer for infection.
  2. Install current Service Packs and Security Updates for your system. Activate automatic updates.
  3. Check your internet browser and the embedded plugins (e.g. Java, Flash, Shockwave, Quicktime) regularly for Actuality.
  4. Install a virus scanner and update it regularly.
  5. Use a Firewall e.g. Windows built-in Firewall or a Router.

Good to know

Find out what botnets are, the damage they cause, and how they threaten the data on your computer.

Here you can find small programs and tutorials which enable you to remove a botnet infection from your computer.

In this section you will find many tips on how to protect your computer from infection.

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