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LetsDefend - RegistryHive

Created: 21/03/2024 11:28 Last Updated: 22/03/2024 13:52


**RegistryHive** ![1bc40668849fde91cf5fbd31c2b40611.png](/resources/1bc40668849fde91cf5fbd31c2b40611.png)

You're a forensics analyst and have a registry dump. Try to analyze the evidence and answer the questions.

Registry Files Location: C:\Users\LetsDefend\Desktop\RegistryHive\Regs


Start Investigation

What is the Computer name of this machine?

We got all the registry hives that needed to complete this challenge ba2b7e6843be4838b6d92914445edd4c.png There are 3 tools that we can used which are RegRipper 2.8 and 3 and lastly RegistryExplorer from EZ tools 024b8da93023e32d7e7501f81d4d240a.png I started by using RegRipper 3 with SYSTEM hive which hold system information 7ef3f9a8dac8805506a3377bb8339490.png Search for ComputerName c5c12c43c057b2d604ae62c8ca6526cc.png

DESKTOP-8K4U4R6

What is the last shutdown time for this machine?
Format: YYYY/MM/DD HH:MM:SS

Search by shutdown on the system hive output 486f2baa4bbc3f2802364647f903d0f2.png

2023-03-23 21:53:11

What is the time zone name that the machine uses?

Search by timezone on the system hive output 07594b051ca85eca5c63e3ca33358c5e.png

Pacific Standard Time

What is the IP address of the default gateway?

Search by gateway on the system hive output, We got only DHCP Default Gateway here 09c69a75369872c5a14c3561ba84fb81.png

192.168.235.2

What is the last login date for the user “Work”?
Format: DD/MM/YYYY HH:MM:SS

Now move to SAM hive for user information 1620896d9973270b0fa043e336cac28f.png e4db74ebbc242ab65ba88af42baf0cfe.png

23/03/2023 21:53:29

How many logins did the “Work” user have?

72d1dc85e4690b6a120cb57d00bf991f.png

3

What is the OS “ProductName”?

use Registry Explorer to load Software Hive then go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion which hold information about Windows OS and Product 2155f45bb469e7d3d5ba84b712f84846.png

Windows 10 Pro

What is the OS “BuildNumber”?

Still on HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion 292db90dd3711a107ade2fecc9174736.png

19043

How many programs run on startup for any user?

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run registry holds information for programs that will be run on startup 9f8c4f2d16956f57ad8ea0aa2ff73c06.png

2

What is the last installed app?

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall registry holds this information despite it names 6eeb502c818b3f1503724344f787a446.png

xampp

What is the “DefaultGatewayMac”?

Registry NetworkList holds this information, so just search for this d709695939e0237693ffbc2cbf25dc6f.png

00-50-56-FD-27-94

What is the Machine SID?

This question can obtained by using RegRipper 2.8 only, and the hive that hold this information is SECURITY Hive 08c48c7b70cbea3d35a605d3a797c7cc.png f47a18535ba6575eec8afe6d230f89eb.png

S-1-5-21-1957816478-2793074591-1041990146

Summary

This challenge was designed for user to practice registry analysis and find basic information about system from 4 registry hives.

![ab9619c5073440a51c50d25cd57e0165.png](/resources/ab9619c5073440a51c50d25cd57e0165.png)