False virus alarm for DC++ 0.791 and recent nightly builds

As of today we found that a few anti virus software reports that the official DC++ 0.791 executable contains a malware called Gen:Variant.Kazy.63748 or similar. We believe that this is completly a false report and already contacted to the largest AV vendor affected, requesting a quick fix.

Until the problem is fixed you can either safely make an exception for DC++ 0.791 in your anti virus software (if such function is available) or as a temporary solution, you can revert to the still available 0.782 version.

As of today, the following AV solutions report malware in DC++0.791

  • F-Secure
  • BitDefender
  • GData

As malware detection signatures are known to be exchanged between vendors, you might experience this problem with another AV solutions in the near future.

Appearently only the official MinGW builds are reported as bad, executables built with Microsoft Visual C++ 10 seems to be unaffected.

We hope the problem will be resolved soon, oh well….

Update: the largest AV vendor very quickly responded so at least for the latest release of DC++ the issue seem to be resolved. Any other MinGW builds higher than bzr rev. 2614 are still produce the problem though…


Thank you for your submission.

The file you submitted is indeed clean. A database update will be released to resolve this issue.

For the meantime, you may exclude this file from Real-time Scanning. Instructions for exclusions can be found here:

Internet Security 2010, Internet Security 2011, Client Security 9:


For the latest database updates please visit this page:


We apologize for any inconveniences that this may have brought you. Should you have further questions, please do not hesitate to email us again.

Best regards,
F-Secure Security Labs http://www.f-secure.com/weblog/
F-Secure Corporation http://www.f-secure.com/

About emtee
I started to use DC using DC++ in 2003 when its version number was around 0.261. Since then I've been amazed by the DC network: a professional but still easy-to-use way of P2P file sharing. I was invited to the DC++ development team in 2006 where - in the beginning - I had been doing user support and testing only. A few years later I started to add small contributions to the DC++ code as well so these days I do mostly bug fixes, testing and improvements as well as I take part of the improvement of the documentation for both DC++ and ADCH++. I translated the whole DC++ help file to my native language (Hungarian) and currently maintaining the whole HU locale stuff for DC++. My ultimate goal is to help making the DC network as more user friendly as possible.

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