To expand on DaChew's comments,
If this is a confirmed infection, be aware that Virut (Virtob)
, are polymorphic file infectors
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
McAfee Risk Assessment and Overview of W32/Virut
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.
Virut/Virux are contracted and spread by visiting remote
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.
Keygen and Crack Sites Distribute VIRUX and FakeAV
...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...
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.