Справочник Пользователя для Sophos Anti-Virus 5

The report of a virus fragment indicates that part of a file matches part of a virus.
There are three possible causes:

Many new viruses are based on existing ones, so that code fragments typical of a
known virus may appear in files infected with a new one. If a virus fragment is
reported, it is possible that Sophos Anti−Virus has detected a new virus, which
could become active.

Many viruses contain bugs in their replication routines that cause them to infect
target files incorrectly. An inactive portion of the virus (possibly a substantial part)
may appear within the host file, and this is detected by Sophos Anti−Virus. A
corrupted virus cannot spread.

When running a full scan, Sophos Anti−Virus may report that there is a virus
fragment in a database file.

If the Sophos Enterprise Console is used to administer Sophos
Anti−Virus on workstations, it may override changes made here. To
avoid this, refer to the console help.

By default, Sophos Anti−Virus prevents access to removable disks whose boot
sectors are infected. To allow access (e.g. to copy files from a floppy disk infected
with a boot sector virus), do as follows.

In the home page of the Sophos Anti−Virus window, click Configure
Sophos Anti−Virus.

1. 

In the Configure page, click On−access scanning.

2. 

In the On−access scan settings for this computer dialog box, click the
Scanning tab.

3. 

Select Allow access to drives with infected boot sectors.

4.