【问题标题】:How do I use C to terminate a process on a remote computer?如何使用 C 终止远程计算机上的进程?
【发布时间】:2012-04-06 16:09:23
【问题描述】:

平台:Windows 语言:C/C++

我需要一种方法来终止远程计算机上的进程,它实际上是一个远程服务,对 SERVICE_STOP 命令没有响应,有人知道我该怎么做吗?

【问题讨论】:

    标签: c++ c windows service process


    【解决方案1】:

    要杀死远程机器中的进程,您可以使用Win32_Process WMI 类和Terminate 方法,要停止远程服务,您可以使用Win32_ServiceStopService 方法。

    这是一个 C++ 示例:

    #include "stdafx.h"
    #define _WIN32_DCOM
    #include <iostream>
    using namespace std;
    #include <comdef.h>
    #include <Wbemidl.h>
    # pragma comment(lib, "wbemuuid.lib")
    
    //CREDENTIAL structure
    //http://msdn.microsoft.com/en-us/library/windows/desktop/aa374788%28v=vs.85%29.aspx
    #define CRED_MAX_USERNAME_LENGTH            513
    #define CRED_MAX_CREDENTIAL_BLOB_SIZE       512
    #define CREDUI_MAX_USERNAME_LENGTH CRED_MAX_USERNAME_LENGTH
    #define CREDUI_MAX_PASSWORD_LENGTH (CRED_MAX_CREDENTIAL_BLOB_SIZE / 2)
    
    // The Terminate method terminates a process and all of its threads. The method returns an integer value that can be interpretted as follows: 
    // 0 - Successful completion.
    // 2 - The user does not have access to the requested information.
    // 3 - The user does not have sufficient privilge.
    // 8 - Unknown failure.
    // 9 - The path specified does not exist.
    // 21 - The specified parameter is invalid.
    // Other - For integer values other than those listed above, refer to Win32 error code documentation.
    // 
    // Note:  The  SE_DEBUG_PRIVILEGE privilege is required to invoke this method
    
    #pragma argsused
    int main(int argc, char* argv[])
    {
        wchar_t pszName[CREDUI_MAX_USERNAME_LENGTH+1] = L"user";
        wchar_t pszPwd[CREDUI_MAX_PASSWORD_LENGTH+1]  = L"password";
        BSTR strNetworkResource;
        //To use a WMI remote connection set localconn to false and configure the values of the pszName, pszPwd and the name of the remote machine in strNetworkResource
        bool localconn = true;  
        strNetworkResource = localconn ?  L"\\\\.\\root\\CIMV2" : L"\\\\remote--machine\\root\\CIMV2";
    
        COAUTHIDENTITY *userAcct =  NULL ;
        COAUTHIDENTITY authIdent;
        HRESULT hres;
    
        // Initialize COM. ------------------------------------------
    
        hres =  CoInitializeEx(0, COINIT_MULTITHREADED);
        if (FAILED(hres))
        {
            cout << "Failed to initialize COM library. Error code = 0x" << hex << hres << endl;
            cout << _com_error(hres).ErrorMessage() << endl;
            cout << "press enter to exit" << endl;
            cin.get();          
            return 1;                  // Program has failed.
        }
    
        // Set general COM security levels --------------------------
        if (localconn)
            hres =  CoInitializeSecurity(
                NULL,
                -1,                          // COM authentication
                NULL,                        // Authentication services
                NULL,                        // Reserved
                RPC_C_AUTHN_LEVEL_DEFAULT,   // Default authentication
                RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation
                NULL,                        // Authentication info
                EOAC_NONE,                   // Additional capabilities
                NULL                         // Reserved
                );
        else
            hres =  CoInitializeSecurity(
                NULL,
                -1,                          // COM authentication
                NULL,                        // Authentication services
                NULL,                        // Reserved
                RPC_C_AUTHN_LEVEL_DEFAULT,   // Default authentication
                RPC_C_IMP_LEVEL_IDENTIFY,    // Default Impersonation
                NULL,                        // Authentication info
                EOAC_NONE,                   // Additional capabilities
                NULL                         // Reserved
                );
    
    
        if (FAILED(hres))
        {
            cout << "Failed to initialize security. Error code = 0x" << hex << hres << endl;
            cout << _com_error(hres).ErrorMessage() << endl;
            CoUninitialize();
            cout << "press enter to exit" << endl;
            cin.get();          
            return 1;                      // Program has failed.
        }
    
        // Obtain the initial locator to WMI -------------------------
    
        IWbemLocator *pLoc = NULL;
        hres = CoCreateInstance(CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID *) &pLoc);
    
        if (FAILED(hres))
        {
            cout << "Failed to create IWbemLocator object. " << "Err code = 0x" << hex << hres << endl;
            cout << _com_error(hres).ErrorMessage() << endl;
            CoUninitialize();
            cout << "press enter to exit" << endl;
            cin.get();              
            return 1;                 // Program has failed.
        }
    
        // Connect to WMI through the IWbemLocator::ConnectServer method
    
        IWbemServices *pSvc = NULL;
    
        // Connect to the root\\CIMV2 namespace
        // and obtain pointer pSvc to make IWbemServices calls.
        if (localconn)  
            hres = pLoc->ConnectServer(
                 _bstr_t(strNetworkResource),      // Object path of WMI namespace
                 NULL,                    // User name. NULL = current user
                 NULL,                    // User password. NULL = current
                 0,                       // Locale. NULL indicates current
                 NULL,                    // Security flags.
                 0,                       // Authority (e.g. Kerberos)
                 0,                       // Context object
                 &pSvc                    // pointer to IWbemServices proxy
                 );
        else
            hres = pLoc->ConnectServer(
                _bstr_t(strNetworkResource),  // Object path of WMI namespace
                _bstr_t(pszName),             // User name
                _bstr_t(pszPwd),              // User password
                NULL,                // Locale
                NULL,                // Security flags
                NULL,                // Authority
                NULL,                // Context object
                &pSvc                // IWbemServices proxy
                );
    
    
        if (FAILED(hres))
        {
            cout << "Could not connect. Error code = 0x" << hex << hres << endl;
            cout << _com_error(hres).ErrorMessage() << endl;
            pLoc->Release();
            CoUninitialize();
            cout << "press enter to exit" << endl;
            cin.get();                  
            return 1;                // Program has failed.
        }
    
        cout << "Connected to root\\CIMV2 WMI namespace" << endl;
    
        // Set security levels on the proxy -------------------------
        if (localconn)
            hres = CoSetProxyBlanket(
               pSvc,                        // Indicates the proxy to set
               RPC_C_AUTHN_WINNT,           // RPC_C_AUTHN_xxx
               RPC_C_AUTHZ_NONE,            // RPC_C_AUTHZ_xxx
               NULL,                        // Server principal name
               RPC_C_AUTHN_LEVEL_CALL,      // RPC_C_AUTHN_LEVEL_xxx
               RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
               NULL,                        // client identity
               EOAC_NONE                    // proxy capabilities
            );
        else
        {
            // Create COAUTHIDENTITY that can be used for setting security on proxy
            memset(&authIdent, 0, sizeof(COAUTHIDENTITY));
            authIdent.PasswordLength = wcslen (pszPwd);
            authIdent.Password = (USHORT*)pszPwd;
            authIdent.User = (USHORT*)pszName;
            authIdent.UserLength = wcslen(pszName);
            authIdent.Domain = 0;
            authIdent.DomainLength = 0;
            authIdent.Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
            userAcct = &authIdent;
    
            hres = CoSetProxyBlanket(
               pSvc,                           // Indicates the proxy to set
               RPC_C_AUTHN_DEFAULT,            // RPC_C_AUTHN_xxx
               RPC_C_AUTHZ_DEFAULT,            // RPC_C_AUTHZ_xxx
               COLE_DEFAULT_PRINCIPAL,         // Server principal name
               RPC_C_AUTHN_LEVEL_PKT_PRIVACY,  // RPC_C_AUTHN_LEVEL_xxx
               RPC_C_IMP_LEVEL_IMPERSONATE,    // RPC_C_IMP_LEVEL_xxx
               userAcct,                       // client identity
               EOAC_NONE                       // proxy capabilities
            );
        }
    
    
        if (FAILED(hres))
        {
            cout << "Could not set proxy blanket. Error code = 0x" << hex << hres << endl;
            cout << _com_error(hres).ErrorMessage() << endl;
            pSvc->Release();
            pLoc->Release();     
            CoUninitialize();
            cout << "press enter to exit" << endl;
            cin.get();                  
            return 1;               // Program has failed.
        }
    
        // Use the IWbemServices pointer to make requests of WMI ----
    
        BSTR MethodName = SysAllocString(L"Terminate");
        BSTR ClassName = SysAllocString(L"Win32_Process");
    
        IWbemClassObject* pClass = NULL;
        hres = pSvc->GetObject(ClassName, 0, NULL, &pClass, NULL);
    
        IWbemClassObject* pInParamsDefinition = NULL;
        hres = pClass->GetMethod(MethodName, 0, &pInParamsDefinition, NULL);
    
        IWbemClassObject* pClassInstance = NULL;
        hres = pInParamsDefinition->SpawnInstance(0, &pClassInstance);
    
        VARIANT varCommand;
    
    
        // Execute Method
        IWbemClassObject* pOutParams = NULL;
        // Pass the Pid of the process to terminate
        hres = pSvc->ExecMethod(L"Win32_Process.Handle=\"4532\"", MethodName, 0,
        NULL, pClassInstance, &pOutParams, NULL);
    
        if (FAILED(hres))
        {
            cout << "Could not execute method. Error code = 0x" << hex << hres << endl;
            cout << _com_error(hres).ErrorMessage() << endl;        
            SysFreeString(ClassName);
            SysFreeString(MethodName);
            if (pClass) pClass->Release();
            if (pInParamsDefinition) pInParamsDefinition->Release();
            if (pOutParams) pOutParams->Release();
            if (pSvc) pSvc->Release();
            if (pLoc) pLoc->Release();     
            CoUninitialize();
            cout << "press enter to exit" << endl;
            cin.get();          
            return 1;               // Program has failed.
        }
    
    
        VARIANT varReturnValue;
        hres = pOutParams->Get(L"ReturnValue", 0, &varReturnValue, NULL, 0);
        if (!FAILED(hres))
        wcout << "ReturnValue " << varReturnValue.intVal << endl;
        VariantClear(&varReturnValue);
    
    
        // Clean up    
        SysFreeString(ClassName);
        SysFreeString(MethodName);  
        if (pClass) pClass->Release();
        if (pInParamsDefinition) pInParamsDefinition->Release();
        if (pOutParams) pOutParams->Release();
        if (pLoc) pLoc->Release();
        if (pSvc) pSvc->Release();
        CoUninitialize();
        cout << "press enter to exit" << endl;
        cin.get();  
        return 0;
    }
    

    【讨论】:

    • 有任何关于如何使用它们的 C 或 C++ 示例吗?
    • @shawn 您可以通过将cout 替换为printf() 并将_com_error(hres).ErrorMessage() 替换为Kernel32 的GetLastError() 来将上述C++ 代码转换为C。
    • @shawn 通过比较stackoverflow.com/questions/9589431/…中RRUZ的代码来获取C/C++转换的一些想法
    • @shawn 抱歉之前的评论;有一个错误:正确,获取Win32错误的字符串版本替换_com_error(hres).ErrorMessage(),请参考这个stackoverflow.com/questions/1387064/…
    • @shawn,WMI 基于 COM。
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