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Computer randomly shuts off


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#1 foxmulderftw

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Posted 19 September 2010 - 02:40 PM

Hello, my computer seems to randomly just shut off. I need to turn of my power on and off a few times before I can turn it back on. It usually shuts off from 10-25 minutes in, I scanned it with AVG, spybot, and a malware scanner. The malware scanner can never finish scanning before the computer shuts off, but around 20 minutes in it finds an infection. I'm not sure what the infection is or if what the scanner found is responsible, but thats all I really have to go on. I also ran a hijackthis log if you want me to post it.

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#2 DaChew

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Posted 19 September 2010 - 02:55 PM

Try to complete a MBAM quick scan even if you have to reboot or shut down after installing and updating before running the scan.

We maybe dealing with malware and overheating.

Please download Malwarebytes Anti-Malware and save it to your desktop.Download Link 1
Download Link 2
MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
    For instructions with screenshots, please refer to the How to use Malwarebytes' Anti-Malware Guide.
  • 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 definition 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.
  • 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. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.
Make sure the room and computer are cool before starting the MBAM scan
Chewy

No. Try not. Do... or do not. There is no try.

#3 foxmulderftw

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Posted 19 September 2010 - 03:41 PM

I've already tried the fast scan, I tried it again though and it doesn't pick up whatever the full scan does. I took off the side of my computer and put a big fan on it, so I'm going to see if I can finish a full scan before it shuts off.

#4 foxmulderftw

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Posted 19 September 2010 - 04:21 PM

Ok, so I managed to complete the scan and take out the infection, so I'll post the log.



Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4653

Windows 6.1.7600
Internet Explorer 8.0.7600.16385

9/19/2010 2:16:47 PM
mbam-log-2010-09-19 (14-16-47).txt

Scan type: Full scan (C:\|)
Objects scanned: 284731
Time elapsed: 32 minute(s), 12 second(s)

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

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\Users\Alex\Documents\RemoveWAT 2.2.5.2\RemoveWAT.exe (HackTool.Wpakill) -> Quarantined and deleted successfully.

#5 DaChew

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Posted 19 September 2010 - 05:48 PM

http://www.bleepingcomputer.com/forums/topic323892.html

Would you post a speccy link please
Chewy

No. Try not. Do... or do not. There is no try.

#6 foxmulderftw

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Posted 19 September 2010 - 06:03 PM

Here you go.
http://speccy.piriform.com/results/qKeydZoJSBQuH5tTaVtl1bK

#7 DaChew

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Posted 19 September 2010 - 06:15 PM

What exact power supply runs that beast?
Chewy

No. Try not. Do... or do not. There is no try.

#8 foxmulderftw

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Posted 19 September 2010 - 06:21 PM

I have a Cooler Master rs 500 pcar a3

#9 DaChew

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Posted 19 September 2010 - 06:40 PM

I need to turn of my power on and off a few times before I can turn it back on.


Sounds like an overloaded power supply tripping the protection.
Chewy

No. Try not. Do... or do not. There is no try.

#10 foxmulderftw

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Posted 19 September 2010 - 06:50 PM

Hmm, so should I buy a new one? How many watts do you recommend for my computer?

#11 DaChew

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Posted 19 September 2010 - 06:57 PM

I have asked for a second opinion, give it a little time, we might get more help if you posted in our hardware subforum with a link to this thread.
Chewy

No. Try not. Do... or do not. There is no try.

#12 cryptodan

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Posted 20 September 2010 - 04:30 PM

Files Infected:
C:\Users\Alex\Documents\RemoveWAT 2.2.5.2\RemoveWAT.exe (HackTool.Wpakill) -> Quarantined and deleted successfully.


Why are you using a WAT Remover, are you using a legitimate Operating System from Windows?

#13 Sneakycyber

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Posted 25 September 2010 - 09:26 PM

As others have posted the PSU may be overloaded if its an inexpensive model that is over rating its 500. Try removing your RAdeon board and using the on board video if the computer stays on then the PSU is the culprit.
Chad Mockensturm 
Network Engineer
Certified CompTia Network +, A +




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