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Computer reboots before finishing startup, can't get into windows


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10 replies to this topic

#1 UncleGrubby

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Posted 11 January 2009 - 12:17 AM

I posted this in the Windows XP forum, not thinking.

Last night I found a virus on my computer and ran Malwarebytes. I had run it before to sucessfully remove a problem I'd had. So it does its job and says I need to restart to complete the process.

I restart and go to bed while it's shutting down.

Well I come back today to find it's stuck in a loop where it will boot up to the point where it says "Windows is stating up" and then all of a sudden the computer just shuts off and restarts.

I CAN boot it into safe mode but I am unsure of what to do from there.

Thanks folks!

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#2 Guest_superbird_*

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Posted 11 January 2009 - 01:15 PM

Hi,

Please do the following in Safe Mode.
(For downloading the tools, use an other pc, and transfer the files by an USB-drive or CD)

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
alternate download link 2
  • Make sure you are connected to the Internet.
  • Double-click on Download_mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
  • MBAM will automatically start and you will be asked to update the program before performing a scan. If an update is found, the program will automatically update itself. Press the OK button to close that box and continue. If you encounter any problems while downloading the updates, manually download them from here and just double-click on mbam-rules.exe to install.
  • On the Scanner tab:
    • Make sure the "Perform Quick Scan" option is selected.
    • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
  • Back at the main Scanner screen, click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad and you may be prompted to restart your computer. (see Note below)
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply and exit MBAM.
Note: If MBAM encounters a file that is difficult to remove, you will be presented with 1 of 2 prompts. Click OK to either and let MBAM proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot will prevent MBAM from removing all the malware.

#3 UncleGrubby

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Posted 11 January 2009 - 01:36 PM

Your advice informs me to run Malwarebytes but as you can see I already have it and have done that and that's what has brought me here in the first place.

So will running it again do anything different that running it two nights ago did? I don't understand how that would fix anything but I'll give it a shot so you can see my log.

#4 Guest_superbird_*

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Posted 11 January 2009 - 01:46 PM

Sorry, overlooked that part of your post.
yes please rescan. Maybe I can get some useful information from the log. :thumbsup:

#5 UncleGrubby

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Posted 11 January 2009 - 04:01 PM

Here's the newest log from the latest scan:

-------------------

Malwarebytes' Anti-Malware 1.31
Database version: 1471
Windows 5.1.2600 Service Pack 2

1/11/2009 3:49:30 PM
mbam-log-2009-01-11 (15-49-30).txt

Scan type: Quick Scan
Objects scanned: 55940
Time elapsed: 7 minute(s), 26 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 3
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CLASSES_ROOT\CLSID\{6d794cb4-c7cd-4c6f-bfdc-9b77afbdc02c} (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\virusremover2008 (Rogue.VirusRemove) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\virusremover2008 (Rogue.VirusRemove) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks\{6d794cb4-c7cd-4c6f-bfdc-9b77afbdc02c} (Trojan.Vundo) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

----------------------


The problem persists, however. Still can't boot into windows normally, it just shuts down and restarts right before where it would usually bring up my desktop.

#6 Guest_superbird_*

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Posted 12 January 2009 - 01:36 AM

Hi,

Please use the Internet Explorer browser (or FireFox with IETab), and do an online scan with Kaspersky Online Scanner

Note: If you have used this particular scanner before, you MAY HAVE TO UNINSTALL the program through Add/Remove Programs before downloading the new ActiveX component

Click Yes, when prompted to install its ActiveX component.
(Note.. for Internet Explorer 7 users: If at any time you have trouble with the "Accept" button of the license, click on the "Zoom" tool located at the bottom right of the IE window and set the zoom to 75 %. Once the license has been accepted, reset to 100%.)
The program launches and downloads the latest definition files.
  • Once the files are downloaded click on Next
  • Click on Scan Settings and configure as follows:
    • Scan using the following Anti-Virus database:
      • Extended
    • Scan Options:Scan Archives
      Scan Mail Bases
  • Click OK and, under select a target to scan, select My Computer
When the scan is done, in the Scan is completed window (below), any infection is displayed.
There is no option to clean/disinfect, however, we need to analyze the information on the report.
Posted Image
Posted Image
To obtain the report:
Click on: Save Report As (above - red blinking arrow)
Next, in the Save as prompt, Save in area, select: Desktop
In the File name area, use KScan, or something similar
In Save as type, click the drop arrow and select: Text file [*.txt]
Then, click: Save
Please post the Kaspersky Online Scanner Report in your reply.

#7 UncleGrubby

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Posted 12 January 2009 - 09:15 PM

I cannot perform this scan because I cannot get online with windows in Safe Mode. For that matter, I'm not even sure if i could in normal windows since I can't get it to boot up.

All I have is Safe Mode, no internet. Is there more I can do? I'm using a different PC to get online right now.

#8 Guest_superbird_*

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Posted 13 January 2009 - 01:46 AM

Hi,

Can you please try to boot up in normal mode? :thumbsup:

#9 UncleGrubby

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Posted 13 January 2009 - 02:19 PM

It will not boot up in normal mode. that is the problem that i am trying to have fixed.

#10 Guest_superbird_*

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Posted 13 January 2009 - 03:07 PM

Hi,

I'm going to redirect you to the HijackThissection of this forum. This, because it's a deeper infection.
Read this page and follow it's steps: http://www.bleepingcomputer.com/forums/t/34773/preparation-guide-for-use-before-using-malware-removal-tools-and-requesting-help/

Good luck. :thumbsup:

#11 Orange Blossom

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Posted 27 January 2009 - 08:27 PM

Hello UncleGrubby,

Now that your log is posted here: http://www.bleepingcomputer.com/forums/t/198566/unkown-infection-keeps-windows-xp-from-starting-up-reboots/ you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a HJT Team member, nor should you ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the HJT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the HJT Team members are EXTREMELY busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the HJT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another HJT Team member is already assisting you and not open the thread to respond.

If after 5 days you still have received no response, then post a link to your HJT log in the thread titled "Haven't Had A Reply In Five Days?".

To avoid confusion, I am closing this topic. Good luck with your log.

Orange Blossom :thumbsup:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

Orange Blossom

An ounce of prevention is worth a pound of cure

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