How can I prevent my PC from shutting down due to a virus?

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Discussion Overview

The discussion revolves around troubleshooting unexpected computer shutdowns, with a focus on identifying whether the cause is a virus or a worm, specifically the Sasser worm. Participants share their experiences and suggest potential solutions, including system updates and removal tools.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Exploratory

Main Points Raised

  • One participant describes experiencing crashes, blue screens, and errors related to lasass.exe, questioning the cause of these issues.
  • Another participant asks if the user scanned their hard drive before downloading updates and whether they have multiple computers with the same operating system.
  • Several participants assert that the issue is not a virus but rather the Sasser worm, suggesting steps to mitigate the problem, such as unplugging the internet and enabling the Microsoft firewall.
  • One participant mentions having already run the latest patches and antivirus definitions but still experiencing issues.
  • A suggestion is made to check a specific link for symptoms of the Sasser worm and to follow removal instructions if applicable.
  • Another participant provides a method to temporarily prevent the shutdown using a command and emphasizes the importance of updating the system before attempting to remove the worm.

Areas of Agreement / Disagreement

Participants generally agree that the issue is likely related to the Sasser worm rather than a traditional virus, but there is no consensus on the effectiveness of the proposed solutions or the exact steps needed for resolution.

Contextual Notes

Some participants reference specific tools and methods for removal, but there are unresolved questions regarding the effectiveness of these methods and the need for system updates.

Who May Find This Useful

This discussion may be useful for users experiencing similar shutdown issues on Windows XP, particularly those concerned about worms and viruses.

karthik3k
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Virus r something else ?

Im using Win XP Pro.
I have downloaded the latest fix from microsoft site. Ran it.
Downloaded the latest virus definitions. Installed it.
But still my computer crashes unexpectedly.
Sometimes it shows Blue screen.
Sometimes some kinda err in lasass.exe
Sometimes shuts down in 60 secs.
What went wrong ?
Somebody help
 
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You scaned your HD before you downloaded them ?
You are having two computers and both have XPPro installed ?
 
It isn't a virus. It is a worm. To be more exact is is the sasser worm or a type of variant. You don't need to do anything to get it. I suggest unplugging the internet, turning on atleast the built in microsoft firewall, plugging back the internet, finally going to windows update and downloading every patch there is.
 
dduardo said:
It isn't a virus. It is a worm. To be more exact is is the sasser worm or a type of variant. You don't need to do anything to get it. I suggest unplugging the internet, turning on atleast the built in microsoft firewall, plugging back the internet, finally going to windows update and downloading every patch there is.

I ran all the latest patch available from microsoft website.
I even updated the Norton Antivirus definitions and scanned my computer.
But still ...
 
I’m with dduardo.. you’ve been hit with the sasser worm… check this link http://vil.nai.com/vil/content/v_125007.htm and under the symptoms section see if it resembles what you are seeing. If so follow the instructions there to remove it.

Try the manual removal instructions… however the windows updates should have taken care of it.

HTH,
 
Last edited by a moderator:
To avoid your PC from shutting down:

When you see the window that tells you the PC will shut down in 60 seconds, click on Start. Then select "Run". In the new window that appears type this text:
Code:
shutdown -a
You have now prevented the shutdown (once) and have enough time to download a Sasser removal tool and kill the virus. Note: before you kill the virus, visit windows update and make sure you have the latest updates installed, or you will get hit again right away.
Further note: It is important to turn off System Restore before removing the worm, or the restore function will restore the virus after reboot. Instructions on how to do that can be found on the symantec website, for instance.
 

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