Use SetThreadContext() to perform Remote Process Injection.

BOOL SetThreadContext(
  HANDLE        hThread,
  const CONTEXT *lpContext
  • Get a handle to an existing process on the system or create a new sacrificial process

    • OpenProcess()

    • CreateProcess()

    • CreateProcessAsUser()

  • Get a Handle to the thread of the process

    • OpenThread()

  • Allocate some memory in the chosen remote process

    • VirtualAllocEx()

  • Get the current thread context

    • GetThreadContext()

  • Write shell-code to the remote process, or write a DLL to the remote process

    • GetProcAddress()

    • LoadLibrary()

    • WriteProcessMemory()

  • Update EIP/RIP for the thread to our shell-code

    • SetThreadContext()

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