Malwarebytes just released a statement here:

"For those experiencing an issue with Malwarebytes AntiMalware, flagging NSIS container files and uninstallers as Trojan.Backdoor.MRX.

These are confirmed false positive detections and the offending signture that caused the F/p detection(s) has since been removed from the database.

We apologize for any undue duress caused and as always will endeavour to prevent this from happening again in the future."

Just wanted to give a heads up to anyone who ran MBAM recently and found that it quarantined a bunch of Uninstall.exe's and registry files (like myself).

I do have a question though. Is it OK if I restore the files MBAM quarantined under the vendor "TROJAN.BACKDOOR.MRX" that were part of that false-positive scan?