# Engine Editor > Add-Ons > Anti-Malware

Use this branch to enable and change settings for anti-malware checks on the Security Engine.

Option | Definition
--- | ---
Enable | Enables anti-malware checks.
Malware Log Level | The log level for anti-malware events. None — Does not create any log entry. Transient — Creates a log entry that is displayed in the Current Events mode in the Logs view, but is not stored. Stored — Creates a log entry that is stored on the Log Server. Essential — Creates a log entry that is shown in the Logs view and saved for further use. Alert — Triggers the alert you select.
Alert | When the Log Level is set to Alert, specifies the Alert that is sent.

Option | Definition
--- | ---
Malware Signature Update Settings section
Update Frequency | Defines how often the Security Engine checks for updates to the anti-malware database. Never — The Security Engine does not check for updates. You must update the anti-malware database manually. When Anti-Malware Daemon Starts — Checks when the anti-malware daemon starts. The daemon starts, for example, when the anti-malware feature is enabled or when the Security Engine restarts. Every Hour — Checks for updates once an hour. Daily — Checks for updates once a day. Set the time of day. Weekly — Checks for updates once a week. Set the day and time of day.

Option | Definition
--- | ---
Malware Signature Mirror Settings section
Mirror(s) | Enter the URL of the anti-malware database mirror that the Security Engine contacts to update the anti-malware database. Separate multiple addresses with commas.
Use HTTP Proxy (Optional) | Specifies that the Security Engine uses an HTTP proxy to connect to the anti-malware database mirrors.
Host | The IP address or DNS name of the HTTP proxy.
Port | The listening port of the HTTP proxy.
Username | The user name for authenticating to the HTTP proxy.
Password | The password for authenticating to the HTTP proxy. By default, passwords and keys are not shown in plain text. To show the password or key, deselect the Hide option.