User Guide - Kaspersky Lab

File Anti-Virus 85
Figure 18. Selecting the file types scanned for viruses
Tip:
Do not forget that someone could send a virus to your computer with an
extension (e.g. .txt) that is actually an executable file renamed as a .txt file. If
you select Scan programs and documents (by extension), the scan would
skip such a file. If Scan programs and documents (by content) is selected,
the extension is ignored, and analysis of the file headers will uncover that the
file is an .exe file. File Anti-Virus would thoroughly scan the file for viruses.
In the Productivity section, you can specify that only new files and those that
have been modified since the previous scan should be scanned for viruses. This
mode noticeably reduces scan time and increases the program’s performance
speed. To select this mode, check Scan new and changed files only. This
mode applies to both simple and compound files.
In the Compound Files section, specify which compound files to scan for
viruses:
Scan archives – scans .zip, .cab, .rar, and .arj archives.