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View Full Version : Computer randomly turns itself on?!?!



Jimmy D
28-01-2004, 06:09 PM
hi, my girlfriends computer just randomly turns itslef on at any time of day, u have to flick the switch at the back to get it to stop doing it. it recently had a virus but its now cleared expect for when u leave the computer on for a long time and it goes back to the log in screen is says avg has detected a trojan horse in the system volume information folder in C:\ . i cant access the folder because its hidden even when viewing hidden folders, ive tried typing it in in the address bar but it says acess denied. could this trojan be the reason its turning on randomly?

Growly
28-01-2004, 06:19 PM
Ok, there is a possibility that it is related, but another thing to check is whether Wake on Lan or Wake on Modem is enabled.

If wake on modem is enabled, it could be used in conjunction with the trojan.

So when the hacker wants to use the trojan as a backdoor to your system, he dials your modem, it turns your computer on, and he then gets access. Check if it is enabled, and try your best to remove it. Check the trojan out at Symantecs security response (www.symantec.com) to seee how to remove it.

If it is not enabled, there is also a possibility that the trojan has enabled it, tho it may not be obvious.

Jen C
28-01-2004, 06:31 PM
>avg has detected a trojan horse in the system volume information folder in C:\ .

This is where the System Restore points are kept for ME and XP and AVG will detect a copy of the trojan/virus but will not be able to clean it from those files. You will need to purge all your previous restore points to remove the trojan. To do this you just need to turn off System Restore, reboot the machine and do another AVG scan to get the all clear, and then turn System Restore back on again. Note, by purging your restore points you will lose all previous points and will start from scratch again.

Pheonix
28-01-2004, 06:44 PM
To find the "wake on lan" etc..as mentioned above...look in the BIOS under Power Management.

Graham L
28-01-2004, 06:48 PM
Wake on LAN is highly unlikely. Wake on Modem would be marked by the phone ringing (at least once) when it happens. :D

Jimmy D
04-02-2004, 01:34 PM
> Note, by purging your restore points you will lose
> all previous points and will start from
> scratch again.

could u explain what all this points business means? what will happen if it starts from scratch?

Pheonix
04-02-2004, 03:03 PM
If the restore function is turned on (XP and ME only), if you do any major changes, it will create a restore point. So if it turns to "custard" after the change, then you can go back to what it was before, by using the restore.
The computer can save a number of these occurrences, and these are commonly referred to as "retore points." So you could actually go back further by choosing an older restore point. It only restores the changed files to do with Windows and will not affect your personal stuff like e-mail and documents.
The trick is, that on turning off the restore function, all restore points are lost. Turning it back on, a restore point will be made on your next startup of your PC. It will continue to make the restore points as per normal.
Hope this helps with your understanding and just use the windows help to find out how to turn on/off restore function.