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Video Reviews - Security and Privacy
(Sandboxed) Windows Defender vs Zero Day Malware
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<blockquote data-quote="Eddie Morra" data-source="post: 775449"><p>Windows Defender was sandboxed to prevent vulnerabilities which affect the user-mode components such as the privileged Windows Service from being exploited in a way that would allow the attacker to gain additional privileges (e.g. through a Local Privilege Escalation vulnerability present in the scanning engine used by a privileged Windows Defender process).</p><p></p><p>If you were to exploit other areas of Windows Defender which will not be sandboxed, such as the kernel-mode software, then the sandbox would be of no use. Specific vulnerabilities were being reported to Microsoft consistently (e.g. Google Project Zero) and Microsoft preferred to implement a sandbox container for some user-mode components instead of addressing the elephant in the room about how they needed to follow their own secure guidelines and if they already were... do better.</p><p></p><p>Of course a sandbox container is a good idea but it shouldn't be a substitute for fixing the real underlying issues. It's only a good addition if the underlying problems are also considered properly and effectively fixed... and if you never learn from your mistakes then you'll mess up whatever you do as a substitute sooner or later. Only time will tell.</p><p></p><p>If someone driving stupidly accidentally injures someone but gets let off the hook from prison and sent to driving classes again (e.g. instead of losing their license), it won't make a difference if they didn't care to fix the main issue... which is to focus properly, listen to what they are told and drive safely in the future. Otherwise, no matter how many classes they attend, the same issues will eventually happen.</p><p></p><p>The Windows Defender experimental sandboxing will not affect malware protection (e.g. detection levels, behavioural prevention, etc.). It will only make Windows Defender safer in the event of exploitation which affects a sandboxed component (limiting what an attacker can or cannot do without an additional exploit for the sandbox container escaping) and potentially make it more resistant against vulnerabilities in general (possibly).</p></blockquote><p></p>
[QUOTE="Eddie Morra, post: 775449"] Windows Defender was sandboxed to prevent vulnerabilities which affect the user-mode components such as the privileged Windows Service from being exploited in a way that would allow the attacker to gain additional privileges (e.g. through a Local Privilege Escalation vulnerability present in the scanning engine used by a privileged Windows Defender process). If you were to exploit other areas of Windows Defender which will not be sandboxed, such as the kernel-mode software, then the sandbox would be of no use. Specific vulnerabilities were being reported to Microsoft consistently (e.g. Google Project Zero) and Microsoft preferred to implement a sandbox container for some user-mode components instead of addressing the elephant in the room about how they needed to follow their own secure guidelines and if they already were... do better. Of course a sandbox container is a good idea but it shouldn't be a substitute for fixing the real underlying issues. It's only a good addition if the underlying problems are also considered properly and effectively fixed... and if you never learn from your mistakes then you'll mess up whatever you do as a substitute sooner or later. Only time will tell. If someone driving stupidly accidentally injures someone but gets let off the hook from prison and sent to driving classes again (e.g. instead of losing their license), it won't make a difference if they didn't care to fix the main issue... which is to focus properly, listen to what they are told and drive safely in the future. Otherwise, no matter how many classes they attend, the same issues will eventually happen. The Windows Defender experimental sandboxing will not affect malware protection (e.g. detection levels, behavioural prevention, etc.). It will only make Windows Defender safer in the event of exploitation which affects a sandboxed component (limiting what an attacker can or cannot do without an additional exploit for the sandbox container escaping) and potentially make it more resistant against vulnerabilities in general (possibly). [/QUOTE]
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