hello, it is a posiibility. I will quote our quietman7 on this.
Not knowing what you had on here. But malware like Rootkits and Virut mentioned below can be there.Caution
: If you are considering backing up data and reformatting, keep in mind, with a Virut infection
, there is always a chance of backed up data reinfecting your system. If the data is that important to you, then you can try to salvage some of it but there is no guarantee
so be forewarned that you may have to start over again afterwards if reinfected by attempting to recover your data. Only back up your important documents, personal data files, photos to a CD or DVD drive, not a flash drive or external hard drive as they may become compromised in the process. The safest practice is not to backup
any executable files (*.exe), screensavers (*.scr), autorun (.ini) or script files (.php, .asp, .htm, .html, .xml ) files because they may be infected by malware. Avoid backing up compressed files (.zip, .cab, .rar) that have executables inside them as some types of malware can penetrate compressed files and infect the .exe files within them. Other types of malware may even disguise itself by hiding a file extension
or adding to the existing extension as shown here
(click Figure 1 to enlarge
) so be sure you look closely at the full file name. If you cannot see the file extension, you may need to reconfigure Windows to show file name extensions
. Then make sure you scan the backed up data with your anti-virus prior to
to copying it back to your hard drive.