Saturday, September 10, 2005

Updated Registry parsing tool

Well, this isn't so much an update as it is a modification. I've released lsreg.pl, a Perl script that allows the administrator/investigator to search raw Registry files (ie, NTUSER.DAT, system32\config\SYSTEM, system32\config\SOFTWARE) for specific keys and values.

The Perl script takes two arguments...the path to the raw Registry file, and the path to the file containing the keys/values you're looking for. An example of the output is:

Key -> CurrentControlSet\Control\Windows\ShutdownTime
LastWrite : Tue Aug 2 12:06:56 2005
Value : ShutdownTime;REG_BINARY;c4 96 a0 ad 5a 97 c5 01

Key -> Select
LastWrite : Wed Feb 23 09:37:25 2000
Value :Current;REG_DWORD;1
Value :Default;REG_DWORD;1
Value :Failed;REG_DWORD;0
Value :LastKnownGood;REG_DWORD;2

Key -> Setup
LastWrite : Tue Apr 29 21:33:53 2003
Value :SetupType;REG_DWORD;0
Value :SystemSetupInProgress;REG_DWORD;0
Value :CmdLine;REG_MULTI_SZ;setup -newsetup -mini
Value :SystemPrefix;REG_BINARY;d2 03 00 00 00 00 39 80
Value :SystemPartition;REG_SZ;\Device\HarddiskVolume1
Value :OsLoaderPath;REG_SZ;\
Value :CloneTag;REG_MULTI_SZ;Wed Feb 23 01:44:25 2000

The script uses no MS APIs (so basically, I rewrote the API), but instead parses the Registry files in binary mode. Notice that the output includes the LastWrite time of the keys. If a key is being searched for, the script returns all of the values in that key, if there are any. If a value is being searched for, the script returns the value and data, if found.

As always, comments and questions are welcome.

2 comments:

Anonymous said...

Link to your perl script is broken...

Keydet89 said...

This is an old link. Click on "Windows IR/CF Tools (SF.net)" on the right under "Links", and you'll find regp.pl, the offline Registry parser, along with a standalone .exe. Dump the Registry file, search it using Notepad, etc.