After deploying the DSA on a protected Linux virtual machine (VM), you tried to run a manual anti-malware scan but got this error:
Event ID: 793
Event: Manual Malware Scan Failure
Unable to complete the operation due to the following error on the Agent/Appliance: -1.
The issue occurs if you do not complete the last stage of the deployment procedure, wherein the security updates are downloaded.
To resolve the issue, download the security updates before running a manual malware scan.