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Video Reviews - Security and Privacy
Those Nasty RATS Part 4
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<blockquote data-quote="509322" data-source="post: 579314"><p>After the reboot, if the RAT attempted to reload update.dll using rundll32, then it would be blocked.</p><p></p><p>Just because you do not see an AppGuard block alert after reboot does it mean that the dll was loaded. If the RAT does not attempt to load update.dll, then there will be no block alert.</p><p></p><p>If the RAT is early launch, and attempts to load update.dll before the AppGuard GUI is actively running, then there will be no AppGuard block alert. However, the block event can be found in Event Viewer > Applications.</p><p></p><p>I <em>suspect</em> that AppGuard blocked regsvr32 from registering update.dll on the system during installation of the signed RAT. In the video you see that AppGuard blocks update.dll when the RAT installer is executed.</p></blockquote><p></p>
[QUOTE="509322, post: 579314"] After the reboot, if the RAT attempted to reload update.dll using rundll32, then it would be blocked. Just because you do not see an AppGuard block alert after reboot does it mean that the dll was loaded. If the RAT does not attempt to load update.dll, then there will be no block alert. If the RAT is early launch, and attempts to load update.dll before the AppGuard GUI is actively running, then there will be no AppGuard block alert. However, the block event can be found in Event Viewer > Applications. I [I]suspect[/I] that AppGuard blocked regsvr32 from registering update.dll on the system during installation of the signed RAT. In the video you see that AppGuard blocks update.dll when the RAT installer is executed. [/QUOTE]
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