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How can Combofix destroy my computer?


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#1 Viegaard

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Posted 27 May 2016 - 10:13 PM

Hello!

 

I don't get how and why it says in this forum that Combofix unsupervised can be harmful to my computer.

 

I have watched the Youtube demo, and there was 0 user interaction. It simply ran by itself, no options just double click the .exe file and it runs, no where during the process was there any options to do stuff.

 

/ Viegaard



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#2 Animal

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Posted 27 May 2016 - 10:18 PM

As has been mentioned by Global Moderator quietman7 numerous times in this forum:
 

There are circumstances ComboFix will hang, crash or stall at various stages due to malware interference, failure to disable other real-time protection tools or the presence of CD Emulators (Daemon Tools, Alchohol 120%, Astroburn, AnyDVD) so that it does not complete successfully. Also, depending on how badly a system is infected, ComboFix may take longer to complete its routine than it normally does or fail to run properly. While that is not normal behavior, it is not unusual.

As a general policy, Bleeping Computer does not offer advice on how to run ComboFix unless we asked someone to run it or if there is a problem with the computer caused by running the tool. We recommend that people should not be using ComboFix without being advised to do so by a trained expert (see here) who is assisting them deal with a malware problem. When issues arise due to complex malware infections, problems running ComboFix (i.e. stalling, hanging, crashing) or with other security tools causing conflicts, experts are usually aware of them and can advise what should or should not be done while providing individual assistance. When false detections are identified, experts have access to the developer and can report them so he can investigate, confirm and make corrections. Those attempting to use ComboFix on their own do not have such information and are at risk when running the tool in an unsupervised environment.

While our policy is not to offer advice on running ComboFix unless we asked someone to run it, we are willing to assist with resolving problems caused after using it and we are certainly willing to help with malware disinfection. If that assistance requires running ComboFix, you will be advised what to do in order to get the tool to run properly or investigate any error messages.


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#3 quietman7

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Posted 28 May 2016 - 06:26 AM

Adding to the above...it's not so much that ComboFix is dangerous or harmful, but that it is a powerful and complex tool.

ComboFix was created as a specialized first responder tool for malware removal experts who assist others as it has the ability to deal with multiple malware infections and has built in removal functionality which makes it very powerful. ComboFix is intended by its creator to do two things: 1) automatically remove known infections and 2) provide a detailed system report similar to DDS that a trained expert can use to further investigate and remove malicious files and registry entries. ComboFix was never meant to be used as a general purpose malware scanner like SuperAntispyware, AdwCleaner or Malwarebytes' Anti-Malware which scan individual drives, different folders, the registry, etc on a computer for malware...nor was it designed to be a remote support tool.

ComboFix is safe to use by someone trained in how to use it or when following instructions provided by a trained expert helper who is assisting them deal with a malware problem. However in untrained hands, using this tool incorrectly could lead to disastrous problems with your operating system such as preventing it from ever starting again.

With ComboFix there is always a risk that something on a computer may be erroneously changed when running the tool or using it incorrectly. These issues are able to be quickly resolved by those trained in its usage. For those who have no training, there is a good chance they will be left with an unusable computer. Further, when issues arise due to complex malware infections, problems running ComboFix (i.e. stalling, hanging, crashing) or with other security tools causing conflicts, experts are usually aware of them and can advise what should or should not be done while providing individual assistance. When false detections are identified, experts have access to the developer and can report them so he can investigate, confirm and make corrections. Those attempting to use ComboFix on their own do not have such information and are at risk when running the tool in an unsupervised environment.
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