Sorry for the delayed response but we are all volunteers and sometimes a topic thread will get missed.
You made the right decision. 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...
In some instances this infection 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.
If your computer was used for online banking, had credit card information or other sensitive data on it, 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
. Banking and credit card institutions should be notified of the possible security breach. Because your computer was compromised please read: