Hi
I am having an infection on my laptop.
These are some of the symptoms that I see:
1. I have ESET NOD32. On startup it says "
Threat Found
C:\windows\system32\drivers\mpfqn.sys
Threat : win32/sality.NAQ virus
2. I cant open msconfig or regedit or task manager
3. Any thumb drive placed into the laptop, automatically has folders like newfolder.exe
4. Can't even open bleepingcomputer.com/forums from the infected laptop. As soon as this page opens, the browser window (google chrome) automatically closes
Please, can some one help me fix it
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Win32/Sality. NAQ Virus Laptop infected
#2
Posted 05 April 2010 - 07:34 AM
I'm afraid I have very bad news. Your system is infected with a nasty variant of Win32/Sality. This family of malware is a polymorphic file infector which infects .exe, .scr files, downloads more malicious files to your computer, steals sensitive system information/passwords and sends it back to the attacker.
Please see Kaspersky's Threat Encyclopaedia of Win32.Sality.NAO.
With this particular infection, the safest solution and only sure way to remove it effectively is to reformat and reinstall the OS.
About Sality Virus
If the computer was used for online banking, has credit card information or other sensitive data on it, you should disconnect from the Internet until your system is cleaned. All passwords should be changed immediately to include those used for banking, email, eBay, paypal and online forums. You should consider them to be compromised and change each password using a clean computer and not the infected one. If not, an attacker may get the new passwords and transaction information. Banking and credit card institutions should be notified immediately of the possible security breach.Because your computer was compromised please read:
Please see Kaspersky's Threat Encyclopaedia of Win32.Sality.NAO.
With this particular infection, the safest solution and only sure way to remove it effectively is to reformat and reinstall the OS.
Quote
As with many other malware, Sality disables antivirus software and prevents access to certain antivirus and security websites. Sality can also prevent booting into Safe Mode and may delete security-related files found on infected systems. To spread via the autorun component, Sality generally drops a .cmd, .pif, and .exe to the root of discoverable drives, along with an autorun.inf file which contains instructions to load the dropped file(s) when the drive is accessed.
If the computer was used for online banking, has credit card information or other sensitive data on it, you should disconnect from the Internet until your system is cleaned. All passwords should be changed immediately to include those used for banking, email, eBay, paypal and online forums. You should consider them to be compromised and change each password using a clean computer and not the infected one. If not, an attacker may get the new passwords and transaction information. Banking and credit card institutions should be notified immediately of the possible security breach.Because your computer was compromised please read:
- How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?
- What Should I Do If I've Become A Victim Of Identity Theft?
- Identity Theft Victims Guide - What to do
- When should I re-format? How should I reinstall?
- Help: I Got Hacked. Now What Do I Do?
- Where to draw the line? When to recommend a format and reinstall?
Microsoft MVP - Consumer Security 2007-2012 
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

Member of UNITE, Unified Network of Instructors and Trusted Eliminators
#3
Posted 29 December 2010 - 11:35 AM
Hello, can anyone please expand on Quietman7 qoute " Reinstalling Windows without first wiping the entire hard drive with a repartition and/or format will not remove the infection."
Basically, my computer has a recovery partition, as well as 3 recovery dvd's that I created.
So if I had virut or sality, would restoring the computer using the recovery dvd's to its factory settings, NOT guarantee the removal of the virus ?
Also I used the windows 7 utility to create an image of my pc, which is stored on an external hard drive, would restoring to that image,NOT guarantee the removal of the virus ?
Thank you very much for explaing ths to me, I would appreciate it.
Do the two methods I have mentioned, actually wipe the original hard drive, or just write on top, thus leaving the infection
Basically, my computer has a recovery partition, as well as 3 recovery dvd's that I created.
So if I had virut or sality, would restoring the computer using the recovery dvd's to its factory settings, NOT guarantee the removal of the virus ?
Also I used the windows 7 utility to create an image of my pc, which is stored on an external hard drive, would restoring to that image,NOT guarantee the removal of the virus ?
Thank you very much for explaing ths to me, I would appreciate it.
Do the two methods I have mentioned, actually wipe the original hard drive, or just write on top, thus leaving the infection
#4
Posted 29 December 2010 - 05:25 PM
If you're not sure how to reformat and reinstall Windows, please review:
These links include specific step-by-step instructions with screenshots:
Vista users can refer to these instructions:
Windows 7 users can refer to these instructions:
Depends on whether the recovery partition itself was not infected. If so, you would need to contact the manufacturer, explain what happened and ask them to send full recovery disks to use instead. If you lost or misplaced your recover disks, again you can contact and advise the manufacturer. In many cases they will send replacements as part of their support.
If you have made a disk image with an imaging tool (i.e. Acronis True Image, Drive Image, Ghost, Macrium Reflect, etc.) before your system was infected, then using it is another option. Disk Imaging allows you to take a complete snapshot (image) of your hard disk which can be used for system recovery in case of a hard disk disaster or malware resistent to disinfection. The image is an exact, byte-by-byte copy of an entire hard drive (partition or logical disk) which can be used to restore your system at a later time to the exact same state the system was when you imaged the disk or partition. Essentially, it will restore the computer to the state it was in when the image was made. You will then have to reinstall all programs that you added afterwards. This includes all security updates and patches from Microsoft.
These links include specific step-by-step instructions with screenshots:
Vista users can refer to these instructions:
- Windows Vista Clean Install
- How to Do a Clean Install and Setup with a Full Version of Vista
- How to Do a Clean Install with a Upgrade Version of Vista
Windows 7 users can refer to these instructions:
Quote
So if I had virut or sality, would restoring the computer using the recovery dvd's to its factory settings, NOT guarantee the removal of the virus ?
If you have made a disk image with an imaging tool (i.e. Acronis True Image, Drive Image, Ghost, Macrium Reflect, etc.) before your system was infected, then using it is another option. Disk Imaging allows you to take a complete snapshot (image) of your hard disk which can be used for system recovery in case of a hard disk disaster or malware resistent to disinfection. The image is an exact, byte-by-byte copy of an entire hard drive (partition or logical disk) which can be used to restore your system at a later time to the exact same state the system was when you imaged the disk or partition. Essentially, it will restore the computer to the state it was in when the image was made. You will then have to reinstall all programs that you added afterwards. This includes all security updates and patches from Microsoft.
Microsoft MVP - Consumer Security 2007-2012 
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

Member of UNITE, Unified Network of Instructors and Trusted Eliminators
#5
Posted 30 December 2010 - 02:12 PM
Many thanks Quietman7,I really appreciate your detailed answer and links.Very much appreciated
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