RiskWare.ExtensionMismatch is Malwarebytes’ generic detection name for files that are executable, but have extensions that are not associated with executable files. The reasons for this can be numerous, but users should handle files detected like this with care, unless they are aware of their origin and use.
Malwarebytes blocks RiskWare.ExtensionMismatch from executing malicious files.
Malwarebytes can detect and remove RiskWare.ExtensionMismatch without further user interaction.
Should users wish to keep this program and exclude it from being detected in future scans, they can add the program to the exclusions list. Here’s how to do it.
If you want to allow the program to connect to the Internet, for example to fetch updates, also add an exclusion of the type Allow an application to connect to the internet and use the Browse button to select the file you wish to grant access.