| 摘要 |
Techniques are described herein for loading a user-mode component associated with a kernel-mode component based on an asynchronous procedure call (APC) built by the kernel-mode component. The APC is provided to the main thread of a user-mode process while that user-mode process loads, causing the user-mode process to load the user-mode component. The APC also causes allocation of memory at a location adjacent to that of the user-mode process and stores instructions at the allocated memory. The user-mode component then atomically hooks function(s) of the user-mode process, including modifying a single instruction or set of instructions of the function(s) to jump to the allocated memory. When that modified instruction is executed and jumps to the allocated memory, the instructions at the allocated memory request loading of the user-mode component, which receives data from the hooked function. The user-mode component then provides that data to the kernel-mode component. DOCKET No: C052-0016US TITLE: USER-MODE COMPONENT INJECTION AND ATOMIC HOOKING z I-o 0 0 w z z zr 0 0( 0_ o 0 0o zz< Uzi~ z 0zco |
