windbg commands cheat sheet

Working with WinDbg is kind of pain in the ass and I never remember all the commands by heart, so I write down the commands I used. d[a| u| b| w| W| d| c| q| f| D] [/c #] [Addr] I have tried setting a conditional breakpoint on LoadLibraryExW like the examples in this document. Dump default register mask. bp " - this will run a windbg command after breaking. Displays the most recent exception or event that occurred (why the debugger is waiting? x BlueRobot Moderator, BSOD Academy Instructor. Toggle source line support: enable; disable; toggleWhat happened? Initialize (=inject Logger into the target application) but don't enable logging. However it only stops when it's loading comctl32.dll so there must be something wrong in the syntax. SymPattern can contain wildcards This mask controls how registers are displayed by the "r". Joined May 7, 2013 Posts 3,266 Location %systemroot% Jun 27, 2014 #1 I've created my WinDbg Cheat Sheet (.DOC) which is able to download from my OneDrive, and I'm going to attach the file to this post too. Show all event filters with break status and handling Show the stack on the current thread's stack (mixed managed/unmanaged) ~*kv. Syntax: !tp pool Address [Flags], !tp tqueue Address [Flags] (Check WinDbg for more options). locate all stacks that contain Symbol or module Evaluate expression (use default evaluator) You can combine multipile commands using ';' for example: This command will break at line 385 in the ProcessProtector.c file in the ProcessProtector module and it will print basic process information, a … Please register if you do not have an account yet. Break on Access: [r=read/write, w=write, e=execute], Size=[1|2|4 bytes] We’re going […][…] dump, open it up in windbg, and look around (there are tons of windbg cheat sheets around like this one, this one, or this one).

Set unresolved breakpoint. attach to process.

Display info about the memory used by the target process

Loads the sos extension (lets you run commands on managed code) kv. .help has a new DML mode where a top bar of links is given.chain has a new DML mode where extensions are linked to a .extmatch .extmatch has a new DML format where exported functions link to "!ExtName.help FuncName" commandslm has a new DML mode where module names link to lmv commandsk has a new DML mode where frame numbers link to a .frame/dv Allows for interactive exploration of code flow for a function. WinDbg cheat sheet « The Art of Dev. You must be logged in to post a comment. a) From WinDbg's command line do a !heap -p -h [HeapHandle], where [HeapHandle] is the value returned by HeapCreate. Displays Application Verifier options. You can do a !heap -stat or !heap -p to get all heap handles of your process. I've set the breakpoint like this: bu kernel32!LoadLibraryExW ";as /mu ${/v:MyAlias} poi(@esp+4); .if ( $spat( @"${MyAlias}", "*protect*" ) != 0 ) { .echo ok - dll loaded; kP; } .else { g }". You can do a !heap -stat or !heap -p to get all heap handles of your process. bp is set when the module gets loaded

Working with WinDbg is kind of pain in the ass and I never remember all the commands by heart, so I write down the commands I used..foreach (t {!dumpheap -mt -short}) {.if(poi(${t}+28)>0){.printf ” Thread Obj: %N, Obj Address: ${t}, Name: %N \n”,poi(${t}+28), poi(${t}+c)}}I believe from .NET 4.0 (new CLR) that’s the correct command[…] dump, open it up in windbg, and look around (there are tons of windbg cheat sheets around like this one, this one, or this one). a) From WinDbg's command line do a !heap -p -h , where is the value returned by HeapCreate. WinDbg Cheat Sheet. display raw stack data + possible symbol info == dds esp The name of the dll I'm trying to match is protection_engine.dll , the pattern I use is *protect*.

b) Alternatively you can use !heap -p -all to get addresses of all _DPH_HEAP_ROOT's of your process directly. quick way to find out which threads are spinning out of control or consuming too much CPU timeDecode and display information about an error value [Command]: works for a few regular commands such as k, r displays current symbol options

Enablepageheap.Thenyoucanuse"!heap-p-all"togetaddressesofactual_DPH_HEAP_BLOCKstructsinyour process. display formatted view of the thread's environment block (TEB)-1 = dump all slots for current thread Output directory optional. displays exception context record (registers) associated with the current exceptionList modules; verbose | with loaded symbols | k-kernel or u-user only symbol info | image path; pattern that the module name must match Loading stuff .loadby sos mscorwks Load SOS extension (will identify sos location by loaded mscorwks path) .load c:\Windows\Microsoft.NET\Framework\v2.0.50727\sos Load SOS extension for .NET 2.0 .load … It seems that the following applies for windows XP SP2: )display time (system-up, process-up, kernel time, user time)ends the debugging session, but leaves any user-mode target application runningQuit = ends the debugging session and terminates the target application WinDbg Cheat Sheet - Data Structures, Commands and Extensions. Dumps the heap. !heap listallheapswithindexandHeapAddr !heap-h listallheapswithrangeinformation(startAddr,endAddr) !heap-h1 detailedheapinfoforheapwithindex1 !heap-s0 Summaryforallheaps(reservedandcommittedmemory,..) !heap-flts20 …

Choose default expression evaluator Ctrl-Break. Echo Comment -> comment text + echo it

Dump all floating-point registers == rM 0x4 Set conditional breakpoint in the heap manager [Heap = HeapAddr | Idx | 0] Set symbol store path to automatically point to http://msdl.microsoft.com/download/symbols Display detailed help about an exported function Enable logging + possibly initialize it if not yet done.

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