Handling False Alarms

Prerequisites

• Login credentials have been obtained.
• The event list contains at least one misreported event.

Procedure

1. Log in to the management console.
2. Click in the upper left corner of the management console and select a region or project.
3. Click Service List at the top of the page. Choose Security > Web Application Firewall. In the navigation pane on the left, choose Events.
4. Click the Search tab. In the domain name drop-down list, select a domain name or All domain names to view target event logs. The query time can be Yesterday, Today, Past 3 days, Past 7 days, Past 30 days, or a user-defined time. For details about parameters, see Table 1 and Table 2.

   In the upper right corner of the event list, click Search by ID to search a target event by ID.

   Table 1 Event parameters

   Parameter	Description
   Event Type	Type of an attack By default, All is selected. You can view logs of all attack types or select an attack type to view target attack logs.
   Source IP Address	Public IP address of the web visitor/attacker By default, All is selected. You can view logs of all attack source IP addresses, select an attack source IP address, or enter an attack source IP address to view target attack logs.

   Table 2 Log list parameters

   Parameter	Description
   Time	Time when an attack occurs
   Source IP Address	Public IP address of the web visitor/attacker
   Domain Name	Attacked domain name
   URL	Attacked URL
   Malicious load	Location of the malicious load
   Event Type	Type of an attack
   Protective Action	Protective actions.

   

   To view event details, click Details in the Operation column of the event list.

5. If an event is misreported, add a false alarm masking rule by clicking Handle False Alarm in the row of the event. Table 3 lists related parameters.
   

   • False alarm masking only applies to events logged by built-in basic web protection rules. If you want to mask events logged by custom rules, delete the rules.
   • In the upper right corner of the Handle False Alarm dialog box, click False Alarm Masking to go to the False Alarm Masking page. On this page, you can add a false alarm masking rule.

   Table 3 Parameter description

   Parameter	Description	Example Value
   Domain Name	Domain name where an attack occurs, which is obtained automatically by the system	--
   Path	Misreported URL excluding a domain name Prefix match: The path ending with * indicates that the path is used as a prefix. For example, if the path to be protected is /admin/test.php or /adminabc, set Path to /admin*. Exact match: The path to be entered must match the path to be protected. If the path to be protected is /admin, set Path to /admin. NOTE: The path supports prefix and exact matches only and does not support regular expressions. The path cannot contain two or more consecutive slashes. For example, ///admin. If you enter ///admin, the WAF engine converts /// to /.	/admin*
   Event ID	ID of a built-in rule, which is automatically read.	0000-0000-0000-14-a77516b2df8a3324461edb9140d8c45b

6. Click OK. The event is no longer displayed in the event list.
   

   You can switch to the Domains page, locate the row containing the target domain name, and click Configure Policy in the Operation column. In the False Alarm Masking area, click Customize Rule to view the added false alarm rule.