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Special Command—Using .dump/.dumpcab to Get Dumps and Symbols from Production Servers

Using WinDbg you can create a dump file from an application running, for instance, in a production server. After collecting the dump file, you can load it in another machine and debug it. However, to be more effective during your debugging session you Read More...
Posted Wednesday, September 16, 2009 12:55 AM by Roberto Farah | 3 Comments

Special Command—Displaying Information From Modules/DLLs with !dlls

!dlls extension displays the table entries of all loaded modules. You can also use it to display all modules that a specified thread or process is using. The WinDbg help file describes all parameters. Here we are going to show the most common usage. Displays Read More...
Posted Thursday, August 20, 2009 3:10 AM by Roberto Farah | 0 Comments

Special Command—Displaying More PE Header Information with !dh

The !dh extension displays the PE header information from a specified module. Usage: !dh [options] <addressOfModule> Options can be: -f Displays file headers. -s Displays section headers. -a Displays all header information. Example: 0:532> lm Read More...
Posted Thursday, August 20, 2009 3:05 AM by Roberto Farah | 0 Comments

Special Command—Displaying the PE Header Information with !lmi

Like its cousin !dh, the !lmi extension displays the PE header information from a specified module. However, it gives you fewer details than !dh . The output is summarized. Usage: !lmi <moduleName> Examples: 0:532> !lmi mtgdi Loaded Module Info: Read More...
Posted Thursday, August 20, 2009 2:59 AM by Roberto Farah | 0 Comments

Special Command—Parsing Strings, Files, and Commands Output Using .foreach

This is by far one of the most powerful WinDbg commands. Even if you don’t create scripts, you’ll benefit from this command. It’s powerful because it’s flexible. You can use it for a huge variety of operations. The .foreach token parses the output of Read More...
Posted Thursday, March 12, 2009 1:41 AM by Roberto Farah | 1 Comments

Special Command—Extracting Class and Struct Fields Using dt

dt is another command used almost all the time whenever you want to get the fields and type for a structure or class. For example, you may have a this pointer and use dt to get its fields and type. It’s a simple command with interesting variations that Read More...
Posted Tuesday, April 22, 2008 12:18 AM by Roberto Farah | 1 Comments

[Windbg Script] Get Portable Executable Headers

There are several tools you can use to read the image headers, like Dumpbin.exe and Link.exe, for instance. You can, however, also use Windbg for doing that! In other words, during your debugging session you can see the header from an image file without Read More...
Posted Thursday, May 03, 2007 8:59 PM by Roberto Farah | 10 Comments
 
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