There is a .dll in my system32 file that seems to keep on remaking itself which means there’s a backdoor program on this system. I’ve tried Kaspersky but the .dll seems to slow my computer down that when I try Kaspersky my laptop doesn’t load up when it comes to the desktop. I’ve tried Ad-Aware, Pest Control, Nod32, and AVG. I’ve also tried to remove it forcefully but it says it’s in use. When I remote it with a cold boot it remakes itself when I restart my computer. I did this in Safe Mode. Any tips on to remove this annoying bugger? I also tried googling the .dll but nothing comes up, here is the dll
vtUlLDst.dll
Is that even a legit system32 dll but infected? If it is would I be able to make a new, clean system32 or is reformating my only option?
Help needed! Thanks in advance.
Best answer:
Answer by Darren Y
To clean up your virus/spyware problems
Update your anti-virus [you should only have one anti-virus running on your PC]
Update your anti-spyware software.
Restart your PC in safe mode
http://www.pchell.com/support/safemode.shtml
And run a full scan with both.
You may also want to have a look at your start up items by by msconfig.
http://www.netsquirrel.com/msconfig/
Be precise with the items you uncheck, you can have a look here to see if they are necessary
http://www.greatis.com/appdata/index.html
You should also have a look at your IE Add-ons.
http://www.microsoft.com/windowsxp/by/web/sp2_addonmanager.mspx
Disable any you do not use.
After you reboot back to normal mode, down load and install ccleaner to fix any registry problems.
http://www.ccleaner.com
Know better? Leave your own answer in the comments!
I can only suggest prevx
http://prevx.com/
i’m by avira..antivirus..it searched & ruined 456 threats in my laptop
works for me
first off just because the dll reappears doesn’t mean u have a backdoor installed it may possibly mean there is a code most likely by a loop to check for the existence of the object and re-erect it ,, those are usually in the registry startup locations,, it may also be some function hooks involved in where ur antivirus may be disabled or wounded basically what u need is a fresh binary thats not infected, u can’t trust ur AV nor the functionality of the OS at this top,, u need to make a LiveCD by Nero or infrarecorder or knoppix or a similar live linux CD with NTFS modules built-in and a antivirus like ClamAV,,, u boot into the live CD and run a the AV,, the AV should notice ur windows hard drive even thought the OS is dead,,, it should also be able to configure networking for u and update the AV program for u to run a scan on the windows partitions,,, this should be all means find the infection and give chance to remove,, another thing u can do is just delete the files and every instance of the code from the system by the Live CD’s file browser,, they wont return when the drive is dead because the Os is not alive,, but u must know the locations of registry hives on the system which u can google, k and u should also have the sysinternals suite installed to be able to locate the infected binary names and investigate their locations
Well its not a trojan or adware. its a virus obviously by that description.
if that viri is not defined, if its new, scanning you’re HDD would be a waste of time.
Removing it manually can be to risky. you make one mistake in its registry and you can hurt you’re computer or even kill it.
reformat may possibly be you’re only option
u know what dude i tried what u said and google it and yeaa u r right,i have an thought,,i reflect u can mail ur issue to one of the antivirus company’s like mcafee or symantec all those ,and i reflect they will react with u ,,,,may be this is a new spyware or backdoor try it
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Excellent luck!