Win32/Sojaner.MemoryScanner/MemoryScanner.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;
using System.Threading;
using System.Runtime.InteropServices;

namespace Sojaner.MemoryScanner
{
    // code borrowed from: http://www.codeproject.com/KB/cs/sojaner_memory_scanner.aspx    
    #region ProcessMemoryReader class
    //Thanks goes to Arik Poznanski for P/Invokes and methods needed to read and write the Memory
    //For more information refer to "Minesweeper, Behind the scenes" article by Arik Poznanski at Codeproject.com
    public class ProcessMemoryReader
    {

        public ProcessMemoryReader()
        {
        }

        /// <summary>   
        /// Process from which to read          
        /// </summary>
        public Process ReadProcess
        {
            get
            {
                return m_ReadProcess;
            }
            set
            {
                m_ReadProcess = value;
            }
        }

        private Process m_ReadProcess = null;

        private IntPtr m_hProcess = IntPtr.Zero;

        public void OpenProcess()
        {
            //                  m_hProcess = ProcessMemoryReaderApi.OpenProcess(ProcessMemoryReaderApi.PROCESS_VM_READ, 1, (uint)m_ReadProcess.Id);
            ProcessMemoryReaderApi.ProcessAccessType access;
            access = ProcessMemoryReaderApi.ProcessAccessType.PROCESS_VM_READ
                | ProcessMemoryReaderApi.ProcessAccessType.PROCESS_VM_WRITE
                | ProcessMemoryReaderApi.ProcessAccessType.PROCESS_VM_OPERATION;
            m_hProcess = ProcessMemoryReaderApi.OpenProcess((uint)access, 1, (uint)m_ReadProcess.Id);
        }

        public void CloseHandle()
        {
            try
            {
                int iRetValue;
                iRetValue = ProcessMemoryReaderApi.CloseHandle(m_hProcess);
                if (iRetValue == 0)
                {
                    throw new Exception("CloseHandle failed");
                }
            }
            catch (Exception ex)
            {
                //System.Windows.Forms.MessageBox.Show(ex.Message, "error", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Warning);
                throw ex;
            }
        }

        public byte[] ReadProcessMemory(IntPtr MemoryAddress, uint bytesToRead, out int bytesRead)
        {
            byte[] buffer = new byte[bytesToRead];

            IntPtr ptrBytesRead;
            ProcessMemoryReaderApi.ReadProcessMemory(m_hProcess, MemoryAddress, buffer, bytesToRead, out ptrBytesRead);

            bytesRead = ptrBytesRead.ToInt32();

            return buffer;
        }

        public void WriteProcessMemory(IntPtr MemoryAddress, byte[] bytesToWrite, out int bytesWritten)
        {
            IntPtr ptrBytesWritten;
            ProcessMemoryReaderApi.WriteProcessMemory(m_hProcess, MemoryAddress, bytesToWrite, (uint)bytesToWrite.Length, out ptrBytesWritten);

            bytesWritten = ptrBytesWritten.ToInt32();
        }


        /// <summary>
        /// ProcessMemoryReader is a class that enables direct reading a process memory
        /// </summary>
        class ProcessMemoryReaderApi
        {
            // constants information can be found in <winnt.h>
            [Flags]
            public enum ProcessAccessType
            {
                PROCESS_TERMINATE = (0x0001),
                PROCESS_CREATE_THREAD = (0x0002),
                PROCESS_SET_SESSIONID = (0x0004),
                PROCESS_VM_OPERATION = (0x0008),
                PROCESS_VM_READ = (0x0010),
                PROCESS_VM_WRITE = (0x0020),
                PROCESS_DUP_HANDLE = (0x0040),
                PROCESS_CREATE_PROCESS = (0x0080),
                PROCESS_SET_QUOTA = (0x0100),
                PROCESS_SET_INFORMATION = (0x0200),
                PROCESS_QUERY_INFORMATION = (0x0400)
            }

            // function declarations are found in the MSDN and in <winbase.h> 

            //          HANDLE OpenProcess(
            //                  DWORD dwDesiredAccess,  // access flag
            //                  BOOL bInheritHandle,    // handle inheritance option
            //                  DWORD dwProcessId       // process identifier
            //                  );
            [DllImport("kernel32.dll")]
            public static extern IntPtr OpenProcess(UInt32 dwDesiredAccess, Int32 bInheritHandle, UInt32 dwProcessId);

            //          BOOL CloseHandle(
            //                  HANDLE hObject   // handle to object
            //                  );
            [DllImport("kernel32.dll")]
            public static extern Int32 CloseHandle(IntPtr hObject);

            //          BOOL ReadProcessMemory(
            //                  HANDLE hProcess,              // handle to the process
            //                  LPCVOID lpBaseAddress,        // base of memory area
            //                  LPVOID lpBuffer,              // data buffer
            //                  SIZE_T nSize,                 // number of bytes to read
            //                  SIZE_T * lpNumberOfBytesRead  // number of bytes read
            //                  );
            [DllImport("kernel32.dll")]
            public static extern Int32 ReadProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, [In, Out] byte[] buffer, UInt32 size, out IntPtr lpNumberOfBytesRead);

            //          BOOL WriteProcessMemory(
            //                  HANDLE hProcess,                // handle to process
            //                  LPVOID lpBaseAddress,           // base of memory area
            //                  LPCVOID lpBuffer,               // data buffer
            //                  SIZE_T nSize,                   // count of bytes to write
            //                  SIZE_T * lpNumberOfBytesWritten // count of bytes written
            //                  );
            [DllImport("kernel32.dll")]
            public static extern Int32 WriteProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, [In, Out] byte[] buffer, UInt32 size, out IntPtr lpNumberOfBytesWritten);


        }
    }
    #endregion
}
Revision:	88
Committed:	Wed May 9 20:52:20 2012 UTC (11 years, 1 month ago) by william
File size:	5985 byte(s)
Log Message:
#	Content
1	using System;
2	using System.Collections.Generic;
3	using System.Text;
4	using System.Diagnostics;
5	using System.Threading;
6	using System.Runtime.InteropServices;
7
8	namespace Sojaner.MemoryScanner
9	{
10	// code borrowed from: http://www.codeproject.com/KB/cs/sojaner_memory_scanner.aspx
11	#region ProcessMemoryReader class
12	//Thanks goes to Arik Poznanski for P/Invokes and methods needed to read and write the Memory
13	//For more information refer to "Minesweeper, Behind the scenes" article by Arik Poznanski at Codeproject.com
14	public class ProcessMemoryReader
15	{
16
17	public ProcessMemoryReader()
18	{
19	}
20
21	/// <summary>
22	/// Process from which to read
23	/// </summary>
24	public Process ReadProcess
25	{
26	get
27	{
28	return m_ReadProcess;
29	}
30	set
31	{
32	m_ReadProcess = value;
33	}
34	}
35
36	private Process m_ReadProcess = null;
37
38	private IntPtr m_hProcess = IntPtr.Zero;
39
40	public void OpenProcess()
41	{
42	// m_hProcess = ProcessMemoryReaderApi.OpenProcess(ProcessMemoryReaderApi.PROCESS_VM_READ, 1, (uint)m_ReadProcess.Id);
43	ProcessMemoryReaderApi.ProcessAccessType access;
44	access = ProcessMemoryReaderApi.ProcessAccessType.PROCESS_VM_READ
45	\| ProcessMemoryReaderApi.ProcessAccessType.PROCESS_VM_WRITE
46	\| ProcessMemoryReaderApi.ProcessAccessType.PROCESS_VM_OPERATION;
47	m_hProcess = ProcessMemoryReaderApi.OpenProcess((uint)access, 1, (uint)m_ReadProcess.Id);
48	}
49
50	public void CloseHandle()
51	{
52	try
53	{
54	int iRetValue;
55	iRetValue = ProcessMemoryReaderApi.CloseHandle(m_hProcess);
56	if (iRetValue == 0)
57	{
58	throw new Exception("CloseHandle failed");
59	}
60	}
61	catch (Exception ex)
62	{
63	//System.Windows.Forms.MessageBox.Show(ex.Message, "error", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Warning);
64	throw ex;
65	}
66	}
67
68	public byte[] ReadProcessMemory(IntPtr MemoryAddress, uint bytesToRead, out int bytesRead)
69	{
70	byte[] buffer = new byte[bytesToRead];
71
72	IntPtr ptrBytesRead;
73	ProcessMemoryReaderApi.ReadProcessMemory(m_hProcess, MemoryAddress, buffer, bytesToRead, out ptrBytesRead);
74
75	bytesRead = ptrBytesRead.ToInt32();
76
77	return buffer;
78	}
79
80	public void WriteProcessMemory(IntPtr MemoryAddress, byte[] bytesToWrite, out int bytesWritten)
81	{
82	IntPtr ptrBytesWritten;
83	ProcessMemoryReaderApi.WriteProcessMemory(m_hProcess, MemoryAddress, bytesToWrite, (uint)bytesToWrite.Length, out ptrBytesWritten);
84
85	bytesWritten = ptrBytesWritten.ToInt32();
86	}
87
88
89	/// <summary>
90	/// ProcessMemoryReader is a class that enables direct reading a process memory
91	/// </summary>
92	class ProcessMemoryReaderApi
93	{
94	// constants information can be found in <winnt.h>
95	[Flags]
96	public enum ProcessAccessType
97	{
98	PROCESS_TERMINATE = (0x0001),
99	PROCESS_CREATE_THREAD = (0x0002),
100	PROCESS_SET_SESSIONID = (0x0004),
101	PROCESS_VM_OPERATION = (0x0008),
102	PROCESS_VM_READ = (0x0010),
103	PROCESS_VM_WRITE = (0x0020),
104	PROCESS_DUP_HANDLE = (0x0040),
105	PROCESS_CREATE_PROCESS = (0x0080),
106	PROCESS_SET_QUOTA = (0x0100),
107	PROCESS_SET_INFORMATION = (0x0200),
108	PROCESS_QUERY_INFORMATION = (0x0400)
109	}
110
111	// function declarations are found in the MSDN and in <winbase.h>
112
113	// HANDLE OpenProcess(
114	// DWORD dwDesiredAccess, // access flag
115	// BOOL bInheritHandle, // handle inheritance option
116	// DWORD dwProcessId // process identifier
117	// );
118	[DllImport("kernel32.dll")]
119	public static extern IntPtr OpenProcess(UInt32 dwDesiredAccess, Int32 bInheritHandle, UInt32 dwProcessId);
120
121	// BOOL CloseHandle(
122	// HANDLE hObject // handle to object
123	// );
124	[DllImport("kernel32.dll")]
125	public static extern Int32 CloseHandle(IntPtr hObject);
126
127	// BOOL ReadProcessMemory(
128	// HANDLE hProcess, // handle to the process
129	// LPCVOID lpBaseAddress, // base of memory area
130	// LPVOID lpBuffer, // data buffer
131	// SIZE_T nSize, // number of bytes to read
132	// SIZE_T * lpNumberOfBytesRead // number of bytes read
133	// );
134	[DllImport("kernel32.dll")]
135	public static extern Int32 ReadProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, [In, Out] byte[] buffer, UInt32 size, out IntPtr lpNumberOfBytesRead);
136
137	// BOOL WriteProcessMemory(
138	// HANDLE hProcess, // handle to process
139	// LPVOID lpBaseAddress, // base of memory area
140	// LPCVOID lpBuffer, // data buffer
141	// SIZE_T nSize, // count of bytes to write
142	// SIZE_T * lpNumberOfBytesWritten // count of bytes written
143	// );
144	[DllImport("kernel32.dll")]
145	public static extern Int32 WriteProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, [In, Out] byte[] buffer, UInt32 size, out IntPtr lpNumberOfBytesWritten);
146
147
148	}
149	}
150	#endregion
151	}