MikroTik routers have a number of issues that need to be patched urgently. The issues allow the routers to be taken over by hackers to be used as they require and are being actively exploited. The issues have been patched in the most recent release of MikroTik OS versions 6.42.7, 6.40.9, and 6.43 in late August. According to a recent survey, two thirds of MikroTik routers have NOT been patched.
If you are using a MikroTik router, please ensure that it is patched to the latest version of the OS urgently.