Install Content and Software Updates
To ensure that you are always protected from the latest threats (including those that have not yet been discovered), you must ensure that you keep your firewalls up-to-date with the latest content and software updates published by Palo Alto Networks.
The following content updates are available, depending on which subscriptions you have:
- Antivirus—Includes new and updated antivirus signatures, including WildFire signatures and automatically-generated command-and-control (C2) signatures. WildFire signatures detect malware first seen by firewalls from around the world. Automatically-generated C2 detect certain patterns in C2 traffic (instead of the C2 server sending malicious commands to a compromised system); these signatures enable the firewall to detect C2 activity even when the C2 host is unknown or changes rapidly. You must have a Threat Prevention subscription to get these updates. New antivirus signatures are published daily.
- Applications—Includes new and updated application signatures. This update does not require any additional subscriptions, but it does require a valid maintenance/support contract. New application updates are published weekly. To ensure that Application updates do not impact your existing policy, review the policy impact of new application updates (see Manage New App-IDs Introduced in Content Releases) and be sure to follow the Best Practices for Application and Threat Content Updates.
- Applications and Threats—Includes new and updated application and threat signatures, including those that detect spyware and vulnerabilities. This update is available if you have a Threat Prevention subscription (and you get it instead of the Applications update). New Applications and Threats updates are published weekly, and the firewall can retrieve the latest update within 30 minutes of availability. To ensure that Application updates do not impact your existing policy, review the policy impact of new application updates (see Manage New App-IDs Introduced in Content Releases) and be sure to follow the Best Practices for Application and Threat Content Updates.
- GlobalProtect Data File—Contains the vendor-specific information for defining and evaluating host information profile (HIP) data returned by GlobalProtect agents. You must have a GlobalProtect license (subscription) and create an update schedule in order to receive these updates.
- GlobalProtect Clientless VPN—Contains new and updated application signatures to enable Clientless VPN access to common web applications from the GlobalProtect portal. You must have a GlobalProtect license (subscription) and create an update schedule in order to receive these updates and enable Clientless VPN to function.
- BrightCloud URL Filtering—Provides updates to the BrightCloud URL Filtering database only. You must have a BrightCloud subscription to get these updates. New BrightCloud URL database updates are published daily. If you have a PAN-DB license, scheduled updates are not required as firewalls remain in-sync with the servers automatically.
- WildFire—Available with a WildFire subscription, this update provides near real-time malware and antivirus signatures created as a result of the analysis done by the WildFire cloud service. As a best practice, schedule the firewall to retrieve and WildFire updates every minute (this allows the firewall to get the latest signatures within a minute of availability). If you have a Threat Prevention subscription and not a WildFire subscription, you must wait 24 to 48 hours for the WildFire signatures to roll into the antivirus update.
- WF-Private—Provides malware signatures generated by an on-premise WildFire appliance.
Follow the steps to install content and software updates.
- Ensure that the firewall has access to the update
- By default, the firewall accesses the Update Server at updates.paloaltonetworks.com so that the firewall receives content updates from the server to which it is closest in the Content Delivery Network Infrastructure for Dynamic Updates. If the firewall has restricted access to the Internet, set the update server address to use the hostname staticupdates.paloaltonetworks.com or the IP address 18.104.22.168 instead of dynamically selecting a server from the CDN infrastructure.
- (Optional) Click Verify Update Server Identity for an extra level of validation to enable the firewall to check that the server’s SSL certificate is signed by a trusted authority. This is enabled by default.
- (Optional) If the firewall needs to use a
proxy server to reach Palo Alto Networks update services, in the Proxy
Server window, enter:
- Server—IP address or host name of the proxy server.
- Port—Port for the proxy server. Range: 1-65535.
- User—Username to access the server.
- Password—Password for the user to access the proxy server. Re-enter the password at Confirm Password.
- Check for the latest content updates.Select DeviceDynamic Updates and click Check Now (located in the lower left-hand corner of the window) to check for the latest updates. The link in the Action column indicates whether an update is available:
You cannot download the antivirus update until you have installed the Application and Threats update.
- Download—Indicates that a new update file is available. Click the link to begin downloading the file directly to the firewall. After successful download, the link in the Action column changes from Download to Install.
If you are using PAN-DB as your URL filtering database you will not see an upgrade link because the PAN-DB database on the firewall automatically synchronizes with the PAN-DB cloud.To check the status of an action, click Tasks (on the lower right-hand corner of the window).
- Upgrade—Indicates that a new version of the BrightCloud database is available. Click the link to begin the download and installation of the database. The database upgrade begins in the background; when completed a check mark displays in the Currently Installed column.
- Revert—Indicates that a previously installed version of the content or software version is available. You can choose to revert to the previously installed version.
- Install the content updates.Installation can take up to 20 minutes on a PA-200 or PA-500 firewall and up to two minutes on a PA-5000 Series, PA-7000 Series, or VM-Series firewall.Click the Install link in the Action column. When the installation completes, a check mark displays in the Currently Installed column.
each content update.Repeat this step for each update you want to schedule.Stagger the update schedules because the firewall can only download one update at a time. If you schedule the updates to download during the same time interval, only the first download will succeed.
- Set the schedule of each update type by clicking the None link.
- Specify how often you want the updates to occur by
selecting a value from the Recurrence drop-down.
The available values vary by content type (WildFire updates are
available Every Minute, Every
15 Minutes, Every 30 minutes,
or Every Hour whereas Applications and Threats
updates can be scheduled for Weekly, Daily, Hourly,
or Every 30 Minutes and Antivirus updates
can be scheduled for Hourly, Daily,
or Weekly).As new WildFire signatures are made available every five minutes, set the firewall to retrieve WildFire updates Every Minute to get the latest signatures within a minute of availability.
- Specify the Time and (or, minutes past the hour in the case of WildFire), if applicable depending on the Recurrence value you selected, Day of the week that you want the updates to occur.
- Specify whether you want the system to Download Only or, as a best practice, Download And Install the update.
- Enter how long after a release to wait before performing
a content update in the Threshold (Hours) field.
In rare instances, errors in content updates may be found. For this
reason, you may want to delay installing new updates until they
have been released for a certain number of hours.If you have mission critical applications that must be 100% available, set the threshold for Applications or Applications and Threats updates to a minimum of 24 hours or more and follow the Best Practices for Application and Threat Content Updates.
- Click OK to save the schedule settings.
- Click Commit to save the settings to the running configuration.
- Update PAN-OS.
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