Scanning comparison: writing to disk vs. reading from disk
The on-access scanner performs scans differently, depending on whether the user is writing to disk or reading from disk.
When files are being written to disk, the on-access scanner scans these items:
- Incoming files being written to the local hard drive.
- Files being created on the local hard drive or a mapped network drive (this includes new files, modified files, or files being copied or moved from one drive to another).
Note: To scan mapped network drives, you must enable the On Network Drives option. Refer to Enabling on-network drives.
These scans are only accessible by the same client where VirusScan Enterprise is installed. It does not detect access to the mapped network drive by other systems.
When files are being read from disk, the on-access scanner scans these items:
- Outgoing files being read from the local hard drive or mapped network drives.
Note: To scan mapped network drives, select the On network drives option, described in the previous bullets, to include remote network files.
- Any file attempting to execute a process on the local hard drive.
- Any file opened on the local hard drive.
- Any file being renamed on the local hard drive, if the file properties have changed.