It is excellent, but Microsoft still needs to improve this protection, especially on what I stated above. jar that installed StrRat - even if Microsoft Defender managed to remove the infection, it is not safe that cyber criminals could have got information about the infected user). Sometimes MS Defender even reacted late (on a malware that had modified RegAsm.exe to install AgentTesla and on a. exe executables and MS Defender blocked scripts. I don't know if it's related to SAC, but even during the execution, SAC blocked all. Microsoft Defender is unable to delete the elements detected correctly, the interface bugs and deletes only few files. On the fake crack, Microsoft Defender blocks all files dropped by the executable. On the Web, with or without Edge, Microsoft Defender blocks all malicious files. => SAC (Smart App Control) is a new system that will automatically block applications that are considered untrustworthy or potentially malicious. We also activate Smart Application Control of Windows 11. I am surprised that CHOICE has rated Windows Defender so poorly, given the scores it gets in other anti-virus software comparisons. We use ConfigureDefender developed by Ful to set Microsoft Defender to maximum. Confirm it, Ransomware Shield adds the app to your Exceptions list itself and there's nothing else to do.Ĭontrolled Folders could be better, then, but it did its core job, keeping us safe from a threat that the antivirus engine missed.Today we are going to test Microsoft Defender, but not by default! Controlled Folders simply blocks everything it doesn't recognize, and previously we've found some legitimate programs refused to run until we manually added them to an Exceptions list.Īvast's Ransomware Shield is smarter, more like a firewall when it detects an unauthorized access to a folder, it alerts you, but also asks if the process is legitimate.
This time, Defender displayed an alert when our ransomware tried to access the folder, and it wasn't able to encrypt any documents. We turned Controlled Folders on, added our test folder to the list, and ran the ransomware simulator again.
Fortunately, Defender has a second layer of protection in its Controlled Folders feature (Security Center > Virus & Threat Protection > Manage Ransomware Protection.) Turn this on and it automatically blocks unauthorized apps from accessing key document folders (Documents, Pictures, Videos, Music, more) and you can easily add more.
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