ntsd

来源:互联网 发布:单片机继电器程序 编辑:程序博客网 时间:2024/06/06 08:44

  ntsd从Windows 2000开始就是系统自带的进程调试工具,在system32目录下。NTSD的功能非常的强大,用法也比较复杂,但如果只用来结束一些进程,那就比较简单了。在Windows中只有System、SMSS.EXE和CSRSS.EXE不能杀。前两个是纯内核态的,最后那个是Win32子系统,ntsd本身需要它。lsass.exe也不要杀掉,它是负责本地账户安全的。被调试器附着的进程会随调试器一起退出,所以可以用来在命令行下终止进程。

  打开cmd 后输入以下命令就可以结束进程:

  方法一:利用进程的PID结束进程

  命令格式:ntsd -c q -p pid

  命令范例: ntsd -c q -p 1332 (结束explorer.exe进程)

  范例详解:explorer.exe的pid为1332,但是如何获取进程的pid呢?在CMD下输入TASKLIST就可以获取当前任务管理器所有进程的PID。或者打开任务管理器,在菜单栏,选择“查看”—“选择列”,在打开的选择项窗口中将“PID(进程标识符)”项选择钩上,这样任务管理器的进程中就会多出PID一项了。(PID的分配并不固定,是在进程启动是由系统随机分配的,所以进程每次启动的进程一般都不会一样。)

  可使用以下命令:

  =================================================

  @echo off

  mode con cols=30 lines=5

  color 1e

  echo.

  set /p t=请输入进程名:

  tasklist /fo csv>2.txt

  find "%t%" 2.txt>1.txt

  for /f "delims=, tokens=2" %%i in (1.txt) do set a=%%i

  ntsd -c q -p %a%

  echo PID NAME

  echo ============

  echo %a% %T%

  del 1.txt

  del 2.txt

  pause >nul

  exit

  =================================================

  方法二:利用进程名结束进程

  命令格式:ntsd -c q -pn ***.exe (***.exe 为进程名,exe不能省)

  命令范例:ntsd -c q -pn explorer.exe

  另外的能结束进程的DOS命令还有taskkill和tskill命令:

  命令格式: taskkill /pid 1234 /f ( 也可以达到同样的效果。)

  如果上面这些还不能满足您的求知欲,下面还有:

  ntsd详解

  有一些高等级的进程,tskill和taskkill或许无法结束,那么我们还有一个更强大的工具,那就是系统debug级的ntsd.准确的说,ntsd是一个系统调试工具,只提供给系统开发级的管理员使用,但是对我们杀掉进程还是很爽的.基本上除了WINDOWS系统自己的管理进程,ntsd都可以杀掉。NTSD 调试程序在启动时要求用户指定一个要连接的进程。使用 TLIST 或 PVIEWER,您可以获得某个现有进程的进程 ID,然后键入 NTSD -p pid 来调试这个进程。NTSD 命令行使用如下的句法:

  NTSD [options] imagefile

  其中,imagefile 是要调试的映像名称。

  用法usage: ntsd [-?] [-2] [-d] [-g] [-G] [-myob] [-lines] [-n] [-o] [-s] [-v] [-w]

  [-r BreakErrorLevel] [-t PrintErrorLevel]

  [-hd] [-pd] [-pe] [-pt #] [-pv] [-x | -x{e|d|n|i} <event>]

  [-- | -p pid | -pn name | command-line | -z CrashDmpFile]

  [-zp CrashPageFile] [-premote transport] [-robp]

  [-aDllName] [-c "command"] [-i ImagePath] [-y SymbolsPath]

  [-clines #] [-srcpath SourcePath] [-QR //machine] [-wake ]

  [-remote transport:server=name,portid] [-server transport:portid]

  [-ses] [-sfce] [-sicv] [-snul] [-noio] [-failinc] [-noshell]

  where: -? displays this help text

  command-line is the command to run under the debugger

  -- is the same as -G -g -o -p -1 -d -pd

  -aDllName sets the default extension DLL

  -c executes the following debugger command

  -clines number of lines of output history retrieved by a remote client

  -failinc causes incomplete symbol and module loads to fail

  -d sends all debugger output to kernel debugger via DbgPrint

  -d cannot be used with debugger remoting

  -d can only be used when the kernel debugger is enabled

  -g ignores initial breakpoint in debuggee

  -G ignores final breakpoint at process termination

  -hd specifies that the debug heap should not be used

  for created processes. This only works on Windows Whistler.

  -o debugs all processes launched by debuggee

  -p pid specifies the decimal process Id to attach to

  -pd specifies that the debugger should automatically detach

  -pe specifies that any attach should be to an existing debug port

  -pn name specifies the name of the process to attach to

  -pt # specifies the interrupt timeout

  -pv specifies that any attach should be noninvasive

  -r specifies the (0-3) error level to break on (SeeSetErrorLevel)

  -robp allows breakpoints to be set in read-only memory

  -t specifies the (0-3) error level to display (SeeSetErrorLevel)

  -w specifies to debug 16 bit applications in a separate VDM

  -x sets second-chance break on AV exceptions

  -x{e|d|n|i} <event> sets the break status for the specified event

  -2 creates a separate console window for debuggee

  -i ImagePath specifies the location of the executables that generated

  the fault (see _NT_EXECUTABLE_IMAGE_PATH)

  -lines requests that line number information be used if present

  -myob ignores version mismatches in DBGHELP.DLL

  -n enables verbose output from symbol handler

  -noio disables all I/O for dedicated remoting servers

  -noshell disables the .shell (!!) command

  -QR <//machine> queries for remote servers

  -s disables lazy symbol loading

  -ses enables strict symbol loading

  -sfce fails critical errors encountered during file searching

  -sicv ignores the CV record when symbol loading

  -snul disables automatic symbol loading for unqualified names

  -srcpath <SourcePath> specifies the source search path

  -v enables verbose output from debugger

  -wake wakes up a sleeping debugger and exits

  -y <SymbolsPath> specifies the symbol search path (see _NT_SYMBOL_PATH)

  -z <CrashDmpFile> specifies the name of a crash dump file to debug

  -zp <CrashPageFile> specifies the name of a page.dmp file

  to use with a crash dump

  -remote lets you connect to a debugger session started with -server

  must be the first argument if present

  transport: tcp | npipe | ssl | spipe | 1394 | com

  name: machine name on which the debug server was created

  portid: id of the port the debugger server was created on

  for tcp use: port=<socket port #>

  for npipe use: pipe=<name of pipe>

  for 1394 use: channel=<channel #>

  for com use: port=<COM port>,baud=<baud rate>,

  channel=<channel #>

  for ssl and spipe see the documentation

  example: ... -remote npipe:server=yourmachine,pipe=foobar

  -server creates a debugger session other people can connect to

  must be the first argument if present

  transport: tcp | npipe | ssl | spipe | 1394 | com

  portid: id of the port remote users can connect to

  for tcp use: port=<socket port #>

  for npipe use: pipe=<name of pipe>

  for 1394 use: channel=<channel #>

  for com use: port=<COM port>,baud=<baud rate>,

  channel=<channel #>

  for ssl and spipe see the documentation

  example: ... -server npipe:pipe=foobar

  -premote transport specifies the process server to connect to

  transport arguments are given as with remoting

  Environment Variables:

  _NT_SYMBOL_PATH=[Drive:][Path]

  Specify symbol image path.

  _NT_ALT_SYMBOL_PATH=[Drive:][Path]

  Specify an alternate symbol image path.

  _NT_DEBUGGER_EXTENSION_PATH=[Drive:][Path]

  Specify a path which should be searched first for extensions dlls

  _NT_EXECUTABLE_IMAGE_PATH=[Drive:][Path]

  Specify executable image path.

  _NT_SOURCE_PATH=[Drive:][Path]

  Specify source file path.

  _NT_DEBUG_LOG_FILE_OPEN=filename

  If specified, all output will be written to this file from offset 0.

  _NT_DEBUG_LOG_FILE_APPEND=filename

  If specified, all output will be APPENDed to this file.

  _NT_DEBUG_HISTORY_SIZE=size

  Specifies the size of a server's output history in kilobytes

  Control Keys:

  <Ctrl-B><Enter> Quit debugger

  <Ctrl-C> Break into Target

  <Ctrl-F><Enter> Force a break into debuggee (same as Ctrl-C)

  <Ctrl-P><Enter> Debug Current debugger

  <Ctrl-V><Enter> Toggle Verbose mode

  <Ctrl-W><Enter> Print version information

  ntsd: exiting - press enter ---

  选项option:

  -2打开一个用于调试字符模式的应用程序的新窗口

  -d将输出重定向到调试终端-g 使执行自动通过第一个断点

  -G使 NTSD 在子程序终止时立即退出o启用多个进程的调试,默认值为由调试程序衍生的一个进程

  -p指定调试由进程 ID 标识的进程

  -v产生详细的输出。

  例如,假设 inetinfo.exe 的进程 ID 为 104。键入命令“NTSD -p 104”将 NTSD 调试程序连接到 inetinfo 进程 (IIS)。也可使用 NTSD 启动一个新进程来进行调试。例如,NTSD notepad.exe 将启动一个新的 notepad.exe 进程,并与它建立连接。一旦连接到某个进程,您就可以用各种命令来查看堆栈、设置断点、转储内存,等等。

  命令含义~显示所有线程的一个列表KB 显示当前线程的堆栈轨迹~*KB显示所有线程的堆栈轨迹R显示当前

  帧的寄存器输出U反汇编代码并显示过程名和偏移量D[type][< range>]转储内存BP设置断点BC[]清除一个或多个断点BD[]禁用一个或多个断点BE[< bp>]启用一个或多个断点BL[]列出一个或多个断点。

  个人意见,有一个非常重要的参数就是-v参数,我们可以通过它发现一个进程下面挂接了哪些连接库文件。有很多病毒,木马,或者恶意软件,都喜欢把自己做成动态库,然后注册到系统正常程序的加载库列表中,达到隐藏自己的目的.

  首先我们需要设置一下ntsd的输出重定向,最好是重定向到一个文本文件,方便我们分析研究.

  c:/>set _NT_DEBUG_LOG_FILE_APPEND=c:/pdw.txt

  注意,虽然输出重定向了,但是我们的输出依然会继续显示在屏幕上,而且会进入到debug模式,我们使用-c q参数,就可以避免这个问题.

  c:/>ntsd -c q -v notepad.exe

  现在我们的pdw.txt文件中,就可以看见notepad.exe文件的调试信息.

  可以知道,ntsd的软件终止能力是很好很强大的,一些taskkill都无法终止的软件(如Student.exe这一类或木马)可以用ntsd轻易终止