
9.2 Check that on-access scanning is working
On-access scanning is your main method of protection against threats.Whenever you copy, move,
or open a file, or start a program, the security VM scans the file or program and grants access to
it only if it does not pose a threat to your computer.
Important: Ensure that Sophos Anti-Virus for Windows is not installed on any guest VMs that
are protected with a security VM.
To check that a security VM is scanning files on access:
1. Go to eicar.org/86-0-Intended-use.html. Copy the EICAR test string to a new file. Give the file
a name with a .com extension and save it to one of the guest VMs.
2. Try to access the file from the guest VM.
3. In Sophos Enterprise Console, in the computer list in the lower right part of the window, click
the Status tab.
4. In the list of computers, look for the security VM. In the Alerts and errors column, Enterprise
Console should display Virus/spyware detected. It should also display that EICAR is
not cleanable.
5. Delete the EICAR file that you created.
Before you delete the EICAR file, you must stop vShield Endpoint Thin Agent on the affected
guest VM:
As an Administrator, in a Command Prompt window, type:
net stop vsepflt
To restart the agent after deleting EICAR, type:
net start vsepflt
6. In Enterprise Console, clear the alert.
a) In the computer list in the lower right part of the window, right-click the security VM and
select Resolve Alerts and Errors.
b) In the Resolve Alerts and Errors dialog box, on the Alerts tab, select the alert and click
Acknowledge.
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Sophos Anti-Virus for VMware vShield
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