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Ransomeware Protection won't turn on


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Hello Malwarebytes team,

For the last weak or so, I started receiving notifications from the malwarebytes app that the Ransomeware protections is turned off.

I tried clicking on Turn On but nothing happens. after reading some related posts, I also places the Malwarebytes in an exclusion folder for windows Defender and restarted but no success.

I also made sure I downloaded the latest version and reinstall it but still not able to turn on Ransomware protection.

See attached Log files.

Thank you

Sergiu_S

mbst-grab-results.zip

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Greetings,

Please remove the exclusions in Malwarebytes referencing locations on drive F:\ which does not appear to be attached to your system any longer.  This is consistent with similar cases where a bug in the most recent version of Malwarebytes causes Ransomware Protection to fail to start whenever an exclusion exists for a location on a drive that is no longer attached to the system.  Hopefully this will be fixed in the next release, however for the time being such exclusions must be removed in order for Ransomware Protection to function.

Please let us know how it goes and if there are any additional problems.

Thanks

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@exile360 - I recently found this topic and I have to add that it's not just USB devices that are no longer attached to the system are causing this problem.

In my case it was a folder in a network attached storage device (NAS) that I had to delete in order to have ransomware protection enabled, eventhough the drives are mapped in my system permanently (tho I realize there might be a moment in startup where the mapped drives are not yet available but MB might already be running, but if this was simply the case, just restarting MB should fix it: it doesnt.)

Also good to mention is that after the exclusion was removed, i had to restart MB...

How will i know i can safely add the exclusion back again and this bug is fixed? Trial and error? 

Thanks!

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Yep, that makes sense since Malwarebytes can't actually scan network attached storage devices (you can't have it scan any files/folders on network drives as it is unable to access them due to permissions quirks in Windows in how it implements network storage).

I don't know if or when it will be fixed, but it is likely that it will be mentioned in the change log/release notes for the version that fixes this issue, and it's likely that it will be included in the next release so I'd suggest keeping an eye on the pinned topic at the top of this area of the forums for announcements of the next release to see when it gets fixed.

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@babylon_nl you are correct, it's not just USB devices, it's any drive that does not exist, including network devices. And you also hit the nail on the head by stating that your network drives actually take a few seconds to attach on system startup, whereas services and drivers will generally start before that, hence this error. This should be fixed in our next release which is slated soon, but no timeline yet.

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Yeah, network drives are tricky due to the way that permissions are handled for them in Windows because since they technically aren't a part of the system, Windows doesn't provide the same level of access to them for processes that would normally have full access to privileged/protected locations such as system files and folders as well as the shell folders for other users/user accounts (i.e. administrative permissions and even SYSTEM account permissions) so getting the appropriate access to a network storage device for an anti-malware tool is a complicated issue, since it must have full read/write/delete access to be able to scan for, detect and remove threats.  There are some "tricks" that can be done to implement it such as "spoofing" other users (your local, limited user account actually has full write access even though the built in SYSTEM account does not) which would be necessary since the scanner and protection components run under MBAMService which runs as SYSTEM (highest level local permissions for the local system/storage devices).

I have no doubt that they will eventually implement full support for network storage devices, but it's not likely to happen any time soon given how infrequently they are used these days and how complex it would be to make it work (many users have stopped using attached storage due to threats like ransomware an worms that spread to attached storage devices, including those connected through the network so removable storage media such as USB drives and external SATA (eSATA) are more often used as a means of backing up files in case of emergency).

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