Uninstall if selected in Device Manager and told to uninstall. Not uninstall when the application is removed and in fact will not even The driver isĪccessible under a non-admin account and is activated every boot. Multiplayer game(s) are closed, the driver continues running. The driver is installed as a system service. Using direct hardware access to read / write the hard disk, program the DMAĬontroller, etc., or it could damage the system by resetting CMOS, A malicious process could elevate its privilege level on the system by Potential problems with the system, bad data, etc.Ģ. Returning to arbitrary code), I/O instructions could be issued, leading to If the process behaves unexpectedly (for example, a stack corruption Ke386IoSetAccessProcess to achieve this the driver is very similar to theĪllowing a process unrestricted I/O access has the following risks:ġ. The driver uses undocumented kernel function Ke386SetIoAccessMap and The design of modern operating systems does not generally allowįor any I/O access from user mode code for system stability and security. I/O permission mask for the calling process to allow unrestricted I/O in This kernel mode driver allows any process to access it, and it modifies the On Windows 9x without the need of the npptnt2.vxd driver. A malicious individual could achieve the same ends Of nppt9x.vxd (Windows9x) and npptnt2.sys (Windows NT).ĭue to the nature of Windows 9x design, the vulnerability we are about toĭiscuss has no bearing. To achieve some of these ends the program uses a kernel driver by the name Terminates applications defined by the game vendor and INCA to be cheats,īlocks certain calls to DirectX functions, and auto-updates itself. Hides the game application process, monitors the entire memory range, NProtect Gameguard is an application bundled with multiplayer games which Subject: Unrestricted I/O access vulnerability in INCA Gameguard
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