Posts Tagged ‘ccleaner’

Detail – The configuration registry database is corrupt

June 6th, 2009

One of the Windows XP virtual machines on my LAB was infected in a nasty way (Duuh!) and by nasty I mean persistent and annoying. In the end my trusty malware removal toolkit came to the rescue. After rebooting the system I was presented with an error prior to login in.

Windows was unable to load the registry. This is often caused by insufficient memory or insufficient security rights.
 
DETAIL - The configuration registry database is corrupt.

More than anything the error is annoying. The recommendation I received from Microsoft was to replace the affected user profile with a new one. While this is a valid recommendation, I knew there had to be an easier/automated solution. Then, I remembered that CCleaner comes with an integrated Registry Cleaner, it was worth a shot.

Registry Repair

  • Start CCleaner
  • Click on Registry
  • Click on Scan for Issues and let it scan for issues
  • When the scan is done click on Fix selected issues…
  • And Reboot

CCleaner

Keep in mind, I would not normally use a Registry Cleaner but this time it was necessary.

5 tools that should be part of any malware removal toolkit

May 25th, 2009

Malware is an example of human generated wreck and at the same time proof of the ingenuity the same are capable of. For this reason part of my home laboratory is dedicated to a group of virtual machines which only have the job of tearing each other apart with malware.

The lab serves a double purpose which is to test the effectiveness of both proactive and reactive tools. On this occasion I am writing about reactive tools that have worked for me multiple times. Keep in mind that one tool alone will never do the job. It may take multiple tools to completely remove the infection.

Those who refuse to experiment will never know their true potential

After sacrificing multiple virtual machines I have generated a list of tools that work against malware.

Disclamer: Most of the software listed in this page is free for personal use only.

Toolkit

Malwarebytes Anti-Malware free version

malwarebytes

Malwarebytes Anti-Malware is one of my favorite tools to remove nasty malware of the likes of Antivirus XP which is particularly difficult to detect and remove. You have the option between a paid version with real time scanning or a free version which lacks real time scanning but still does the same job and has access to the same database of malware as the paid version.

BitDefender Rescue Disk

rescuecd

BitDefender Rescue Disk is a bootable antivirus live CD (based on Linux). BitDefender Rescue CD scans the operating system from the outside, another important feature is the ability to automatically update definitions from the BitDefender Internet servers.

Definition updates are important to keep up with the latest threats.

TrendMicro HijackThis

trendmicro

HijackThis is a some what complex tool that serves for reconnaissance by scanning and reporting back with a log file. The log simply reports on changes that may or may not be malicious. The user has to make the decision on what kind of action to take.

If you have no idea on how to read and interpret the log file you could end up damaging the system. Be cautious when using this tool.

CCleaner

ccleaner

Not exactly a security tool but CCleaner is useful because of the ability to fix problems found in the registry and other garbage left behind.

Sysinternals Process Explorer

Process_Explorer

Process Explorer is my favorite tool for tracking and solving problems on a Windows system that may not be evident or obscured by the OS. While not intended to be a security tool, Process Explorer can display all running process and information about the system is running on. As an exmaple the information displayed by Process Explorer can help the user inspect and stop unwanted malware from running on the system.

Do you know of any other tool that should be part of this list?