Managing Isolated Files

Constraints

Servers that are not protected by HSS do not support alarm-related operations.

Isolation and Killing Operations

1. Log in to the management console.
2. Click in the upper left corner of the page, select a region, and choose Security > Host Security Service.
3. In the navigation pane on the left, choose Detection > Alarms and click Server Alarms.

   Table 1 Alarm statistics

   Parameter	Description
   Time Range	You can select a fixed period or customize a time range to search for alarms. Only alarms generated within 30 days can be queried. The options are as follows: Last 24 hours Last 3 days Last 7 days Last 30 days
   Affected Servers	Number of servers for which alarms are generated.
   Alarms to be Handled	Number of alarms to be handled. By default, all unhandled alarms are displayed on the Events page.
   Handled Alarms	Number of handled alarms.
   Blocked IP Addresses	Number of blocked IP addresses. You can click the number to check blocked IP address list. The blocked IP address list displays the server name, attack source IP address, login type, blocking status, number of blocks, blocking start time, and the latest blocking time. If a valid IP address is blocked by mistake (for example, after O&M personnel enter incorrect passwords for multiple times), you can manually unblock it. If a server is frequently attacked, you are advised to fix its vulnerabilities in a timely manner and eliminate risks. NOTICE: After a blocked IP address is unblocked, HSS will no longer block the operations performed by the IP address. A maximum of 10,000 IP addresses can be blocked for each type of software. If your Linux server does not support ipset, a maximum of 50 IP addresses can be clocked for MySQL and vsftp. If your Linux server does not support ipset or hosts.deny, a maximum of 50 IP addresses can be blocked for SSH.
   Isolated Files	HSS can isolate detected threat files. Files that have been isolated are displayed on a slide-out panel on the Server Alarms page. You can click Isolated Files on the upper right corner to check them. You can recover isolated files. For details, see Managing Isolated Files.

4. Locate an event that can be isolated and killed, click Handle in the Operation column, and select Isolate and Kill in the displayed box.
   

   For details about events that can be isolated and killed, see Server Alarms.

5. Click OK and isolate and kill the target alarm event.

   Files that have been isolated are displayed on a slide-out panel on the Server Alarms page and cannot harm your servers. You can click Isolated Files on the upper right corner to check them.

Checking Isolated Files

1. In the alarm statistics area on the Server Alarms page, click View Details under Isolated Files to check the isolated files.
2. Check the servers, names, paths, and modification time of the isolated files.

Recovering Isolated Files

1. Click Restore in the Operation column of an isolated file.
2. Click OK.
   

   Recovered files will no longer be isolated. Exercise caution when performing this operation.