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Virut infection


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#1 sliger

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Posted 27 April 2009 - 06:43 AM

Hi all. My english is bad, so excuse me please! This is the problem - the famous Virut - this virus broke all my exe files, even the Chess game :thumbsup: No one antivirus software can clen it. All software detect it, but no one can clean it. I've try it manually, but this files can not be deleted, because another program is using it. So help me please, I don't wanna re-install (this is only solution described) because I am a Dj and I don't wanna lose this data, so please help me without re-install! Please :flowers:

Edited by sliger, 27 April 2009 - 06:44 AM.


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#2 DaChew

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Posted 27 April 2009 - 07:01 AM

We have a saying here in America

What part of No don't you understand?

That's the bad news, the good news is Virut does not infect music so you can transfer it over to another drive and then
do a complete format and reinstall of your operating system.

Any installers saved would probably reinfect you unless you burned to cd before getting virut

Virut cannot be fixed unless an expert with advanced knowledge spends a great deal of time doing so. It's a lost cause
Chewy

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#3 sliger

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Posted 27 April 2009 - 07:07 AM

ok, thanks!

#4 quietman7

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Posted 27 April 2009 - 12:12 PM

To expand on DaChew's comments,

If this is a confirmed infection, be aware that Virut (Virtob) / Virux, are polymorphic file infectors with IRCBot functionality which infects .exe, .scr and script files (.PHP, .ASP, and .HTML), downloads more malicious files to your system, and opens a back door that compromises your computer. When Virut creates infected files, it also creates non-functional files that are corrupted beyond repair. Virux is an even more complex file infector. In many cases the infected files cannot be disinfected properly by your anti-virus. When disinfection is attempted, the files become corrupted and the system may become irreparable.

The virus has a number of bugs in its code, and as a result it may misinfect a proportion of executable files....some W32/Virut.h infections are corrupted beyond repair.

McAfee Risk Assessment and Overview of W32/Virut
Virut/Virux are contracted and spread by visiting remote, crack and keygen sites. These kind of sites are infested with a smörgåsbord of malware and an increasing source of system infection. However, the CA Security Advisor Research Blog says they have found MySpace user pages carrying the malicious Virut URL. Either way you can end up with a computer system so badly damaged that recovery is not possible and it cannot be repaired. When that happens there is nothing you can do besides reformatting and reinstalling the OS.

...warez and crack web pages are being used by cybercriminals as download sites for malware related to VIRUT and VIRUX. Searches for serial numbers, cracks, and even antivirus products like Trend Micro yield malcodes that come in the form of executables or self-extracting files...quick links in these sites also lead to malicious files. Ads and banners are also infection vectors...

Keygen and Crack Sites Distribute VIRUX and FakeAV

If your 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. You should change each password using a clean computer and not the infected one. If not, an attacker may get the new passwords and transaction information. If using a router, you need to reset it with a strong logon/password so the malware cannot gain control before connect again. Banking and credit card institutions should be notified of the possible security breach. Because your computer was compromised please read:There is no guarantee this infection can be completely removed. In some instances it may have caused so much damage to your system that it cannot be completely cleaned or repaired. The malware may leave so many remnants behind that security tools cannot find them. Many experts in the security community believe that once infected with this type of malware, the best course of action is to wipe the drive clean, reformat and reinstall the OS. Reinstalling Windows without first wiping the entire hard drive with a repartition and/or format will not remove the infection. The reinstall will only overwrite the Windows files. Any malware on the system will still be there afterwards. Please read:Reformatting a hard disk deletes all data. Should you decide to reformat, you can back up all your important documents, personal data files, photos to a CD, external hard drive or USB drive. The safest practice is not to backup any executable files (*.exe), screensavers (*.scr), autorun (.ini) or script files (.PHP, .ASP, and .HTML) files because they may be infected by malware. Some types of malware may even disguise itself by adding and hiding its extension to the existing extension of file(s) so be sure you look closely at the full file name. After reformatting, as a precaution, make sure you scan these files with your anti-virus prior to copying them back to your hard drive.
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#5 bsaget

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Posted 27 April 2009 - 02:28 PM

Hello in this thread: http://www.bleepingcomputer.com/forums/ind...p;#entry1241069, another on of your posters diagnosed my machine with virut. However, my machine is not experiencing any of the same symptoms as describe above. When I disconnect my wireless internet, I experience no problems with any of my programs and none of them appear broken. Also, none of them are experiencing any slowdowns.

Lastly, Virut doesn't appear anywhere when I scan for it with SBMAM or HijackThis. From these scans it appears that I have Vundos and assorteed malware. If I can get a quick second opinion, affirming the other position, I will format my drive reluctantly. From what I read above, I will not be able to back up my .asp and htm files, would .avi files be okay even if they are zipped? I also am networked to a numbe of machines, should I format these machines even it appears from these scans that they only have Vundos like this my main machine?

Thanks!

#6 quietman7

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Posted 27 April 2009 - 02:41 PM

Hello bsaget

extremeboy made his determination on the information and logs that you provided for his review. Please continue in that thread with him if you have further questions as it is still open. Doing that will help to avoid the confusion that often occurs when trying to help two or more members at the same time in the same thread. Even if your problem is similar to the original poster's problem, the solution could be different based on the kind of hardware, software, system requirements, etc. you are using and the presence of other malware. Further, posting for assistance in someone else's topic is not considered proper forum etiquette.

Thanks for your cooperation.
The BC Staff
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#7 extremeboy

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Posted 27 April 2009 - 02:49 PM

Hello bsaget.

I would like you to continue with that thread over there and if you have any questions feel free to ask in that thread, please try avoid posting in other members topics especially topics such as this one as it leads to confusions.

Just FYI. Your MBAM was WAY outdated and Hijackthis is not a anti-virus/anti-spyware removal tool. It's a tool simply for scanning most loading points of a computer. One last thing, MBAM does not call Virut, "virut" it calls it "Trojan.Agent".

I will explain more if needed in your topic.

Thank you for understanding :thumbsup:

With Regards,
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#8 sliger

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Posted 27 April 2009 - 03:51 PM

Hi again. There is another problem. I am so tired now, but anyway if it's a solution tell me please. So I reinstall the win xp, but the system don't allow me to format c:, so I split the drive with partition magic in 2 parts - C: D: and G: where I put the new Win XP, and the same - can't format. So I delete the system files manually - shift+delete - all is done, (i have another XP on G:) but there is some .tmp file, that can't be deleted. The system shut down and when I restart the comp - NTLDR is missing, press ctrl+alt+del to restart - i press the keys, but the same thing. No progress. I'am so tired. What is that, how can I remove the problem and eventually format the disk drive. Tell me pls.

#9 DaChew

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Posted 27 April 2009 - 04:59 PM

With virut you need to delete all partitions reboot then recreate them

You must work from a bootable cd
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#10 quietman7

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Posted 27 April 2009 - 06:30 PM

If you're not sure how to reformat or need help with reformatting, please review:These links include step-by-step instructions with screenshots:Don't forget you will have to go to Microsoft Update and apply all Windows security patches after reformatting.
Also see How to keep your Windows XP activation after clean install.

Note: If you're using an IBM, Sony, HP, Compaq or Dell machine, you may not have an original XP CD Disk. By policy Microsoft no longer allows OEM manufactures to include the original Windows XP CD-ROM on computers sold with Windows preinstalled. Instead, most computers manufactured and sold by OEM vendors come with a vendor-specific Recovery Disk or Recovery Partition for performing a clean "factory restore" that will reformat your hard drive, remove all data and restore the computer to the state it was in when you first purchased it. See Technology Advisory Recovery Media.

If you need additional assistance with reformatting or have questions about multiple hard drives, you can start a new topic in the Windows XP Home and Professional forum.
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