![]() ![]() You can see the legend and change color assignments by selecting Hacker > Options > Highlighting: Process Hacker can visually identify processes that are being debugged, those are associated with services and those that were packed. Both tools color-code the entries based on the processes’ characteristics: Like Process Explorer, Process Hacker can display the listing of running processes in a tree-like fashion, showing you the parent-child relationship between the processes. Process Hacker implements many of the same features that Process Explorer has for examining local processes, and adds a number of unique capabilities that are especially useful when examining an infected system or analyzing malware. First install Invoke-WindowsApi script then you can write this: Invoke-WindowsApi "kernel32" () "DebugActiveProcess" course if you need it often you can make an alias for that.Process Hacker is an open source replacement not only for the built-in Windows Task Manager, but also for the popular Process Explorer tool. void suspend(DWORD processId)Īs I said Windows command line has not any utility to do that but you can invoke a Windows API function from PowerShell. See the Remarks section on MSDN for details. If you'll make a command line application you'll need to keep its instance running to keep the process suspended (or it'll be terminated). This function lets you stop a process (given its Process ID), syntax is very simple: just pass the ID of the process you want to stop et-voila. To resume you may use DebugActiveProcessStop. It'll suspend the process execution (with all threads all together). To suspend a program is what usually a debugger does, to do it you can use the DebugActiveProcess function. GetModuleHandle("ntdll"), "NtSuspendProcess") NtSuspendProcess pfnNtSuspendProcess = (NtSuspendProcess)GetProcAddress( HANDLE processHandle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, processId)) typedef LONG (NTAPI *NtSuspendProcess)(IN HANDLE ProcessHandle) Read this post (or this article) for a code example (reference for undocumented functions: news://comp.os.32). Starting from Windows XP there is the NtSuspendProcess but it's undocumented. For single threaded applications it's prolix but it works. ![]() Please note that this function is even too much naive, to resume threads you should skip threads that was suspended and it's easy to cause a dead-lock because of suspend/resume order. } while (Thread32Next(hThreadSnapshot, &threadEntry)) HANDLE hThread = OpenThread(THREAD_ALL_ACCESS, FALSE, If (threadEntry.th32OwnerProcessID = processId) Thread32First(hThreadSnapshot, &threadEntry) ThreadEntry.dwSize = sizeof(THREADENTRY32) HANDLE hThreadSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0) For a single threaded application this may not be an issue. It works but some applications may crash or hung because a thread may be stopped in any point and the order of suspend/resume is unpredictable (for example this may cause a dead lock). Hard Wayįirst get all the threads of a given process then call the SuspendThread function to stop each one (and ResumeThread to resume). I also assume your application has all the required permissions to do it (examples are without any error checking). You can't do it from the command line, you have to write some code (I assume you're not just looking for an utility otherwise Super User may be a better place to ask). ![]()
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