Mapping-Injection: Just another Windows Process Injection


Mapping injection is a process injection technique that avoids the usage of common monitored syscall VirtualAllocEx and WriteProcessMemory. This can be achieved by using the Syscall MapViewOfFile2() and some preliminary steps in order to “prepare” the memory with the required shellcode. Once the memory is allocated in the remote process a remote thread is spawned . For the PoC purpose a straight CreateRemoteThread() is used. Some stealthier variations could be used with QueueUserApc() or through Thread Hijacking but this won’t be covered in this PoC. With this technique you will have a different syscall pattern from the classic process injection that is: VirtualAllocEx -> WriteProcessMemory -> CreateRemoteThread. In this technique you will have the following syscall pattern: CreateFileMapping -> MapViewOfFile -> memcpy -> MapViewOfFile2 -> CreateRemoteThread Requirements Supported OS: Windows 10 / Windows Server 2016, version 1703 (build 10.0.15063) and above versions Usage The PoC will inject just a MessageBox....

January 7, 2020
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