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.
.Windows Insider MVP 2017-2018Microsoft MVP Reconnect 2016Microsoft MVP Consumer Security 2007-2015 Member of UNITE, Unified Network of Instructors and Trusted EliminatorsIf I have been helpful & you'd like to consider a donation, click