Cisco Cisco Web Security Appliance S690 ユーザーガイド
14-14
AsyncOS 8.8 for Cisco Web Security Appliances User Guide
Chapter 14 File Reputation Filtering and File Analysis
Troubleshooting File Reputation and Analysis
Information about Advanced Malware Protection including File Analysis is logged in Access Logs or in
AMP Engine Logs. For more information, see the chapter on monitoring system activity through logs.
AMP Engine Logs. For more information, see the chapter on monitoring system activity through logs.
Several Alerts About Failure to Connect to File Reputation or File Analysis
Servers
Problem
You receive several alerts about failures to connect to the file reputation or analysis services in
the cloud. (A single alert may indicate only a transient issue.)
Solution
•
Ensure that you have met the requirements in
.
•
Check for network issues that may prevent the appliance from communicating with the cloud
services.
services.
•
Increase the Query Timeout value:
Select Security Services > Anti-Malware and Reputation . The Query Timeout value is in the
Advanced settings area of the Advanced Malware Protection Services section.
Advanced settings area of the Advanced Malware Protection Services section.
API Key Error (On-Premises File Analysis)
Problem
You receive an API key alert when attempting to view File Analysis report details, or the Web
Security appliance is unable to connect to the AMP Threat Grid server to upload files for analysis.
Solution
This error can occur if you change the hostname of the AMP Threat Grid server and you are
using a self-signed certificate from the AMP Threat Grid server, as well as possibly under other
circumstances. To resolve the issue:
circumstances. To resolve the issue:
•
Generate a new certificate from the AMP Threat Grid appliance that has the new hostname.
•
Upload the new certificate to the Web Security appliance.
•
Reset the API key on the AMP Threat Grid appliance. For instructions, see the online help on the
AMP Threat Grid appliance.
AMP Threat Grid appliance.
Related Topics
•
Files are Not Uploaded As Expected
Problem
Files are not evaluated or analyzed as expected. There is no alert or obvious error.
Solution
Check the maximum file size limit configured for the DVS Engine Object Scanning Limits
on the Security Services > Anti-Malware and Reputation page. This limit applies to Advanced
Malware Protection features.
Malware Protection features.