Update README.md

Author: ZeroMemoryEx

README.md

@@ -1,15 +1,44 @@
 # What is Process Injection?
 * It is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process’s memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
 
-# TECHNICAL DETAILS
-
-* Open process with Access Rights
-* LPTHREAD_START_ROUTINE (its a pointer to the application-defined function of type LPTHREAD_START_ROUTINE to be executed by the thread and represents the starting address of the thread in the remote process. The function must exist in the remote process.)
-* VirtualAllocEx (used to allocate space from the target process virtual memory)
-* WriteProcessMemory (used to write the path of the shellcode into the allocated memory)
-* CreateRemoteThread (used to creates a thread in the virtual memory area of a process)
-* WaitForSingleObject (Waits until the specified object is in the signaled state or the time-out interval elapses)
+### ****TECHNICAL DETAILS****
 
+- ****OpenProcess API****
+    
+    Opens an existing local process object and return an open handle to the specified process.****
+    
+    **Parameters**
+    
+    `[in] dwDesiredAccess`
+    
+    The access to the process object. This access right is checked against the security descriptor for the process. This parameter can be one or more of the [process access rights](https://docs.microsoft.com/en-us/windows/desktop/ProcThread/process-security-and-access-rights).
+    
+    If the caller has enabled the SeDebugPrivilege privilege, the requested access is granted regardless of the contents of the security descriptor.
+    
+    `[in] bInheritHandle`
+    
+    If this value is TRUE, processes created by this process will inherit the handle. Otherwise, the processes do not inherit this handle.
+    
+    `[in] dwProcessId`
+    
+    The identifier of the local process to be opened.
+    
+    If the specified process is the System Idle Process (0x00000000), the function fails and the last error code is `ERROR_INVALID_PARAMETER`. If the specified process is the System process or one of the Client Server Run-Time Subsystem (CSRSS) processes, this function fails and the last error code is `ERROR_ACCESS_DENIED` because their access restrictions prevent user-level code from opening them.
+    
+    If you are using [GetCurrentProcessId](https://docs.microsoft.com/en-us/windows/desktop/api/processthreadsapi/nf-processthreadsapi-getcurrentprocessid) as an argument to this function, consider using [GetCurrentProcess](https://docs.microsoft.com/en-us/windows/desktop/api/processthreadsapi/nf-processthreadsapi-getcurrentprocess) instead of OpenProcess, for improved performance.
+    
+- VirtualAllocEx API
+    
+    Reserves a region of memory within the virtual address space of a specified process, The function initializes the memory it allocates to zero and return the base address of the allocated memory .
+    
+- WriteProcessMemory API
+    
+    Writes data to an area of memory in a specified process. The entire area to be written to must be accessible or the operation fails.****
+    
+- **CreateRemoteThread API**
+    
+    Creates a thread that runs in the virtual address space of another process and return a handle to the new thread.
+    
 
 # DEMO