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Barracuda CloudGen Firewall

How to Configure ATP in the HTTP Proxy

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Configure when and which types of files are uploaded to the Barracuda ATP Cloud for traffic passing through the HTTP proxy service. Users will receive downloaded files immediately. When files with a risk factor higher than the define risk threshold are detected, the associated users and/or IP addresses are placed in quarantine. Files whitelisted in the Malware Protection configuration of the HTTP Proxy are never scanned by ATP.

Before You Begin

Step 1. Configure ATP Scan Policy and Risk Threshold

Configure the ATP scan policy to determine if the user will have to wait for scanning to complete before the file is forwarded.

  1. Go to CONFIGURATION > Configuration Tree > Box > Virtual Servers > your virtual server > Assigned Services > Virus Scanner > Virus Scanner Settings.
  2. Click Lock.
  3. In the left menu, click ATP.
  4. In the ATP HTTP and HTTPS Scan Policies section, select the Global Policy:

    • Deliver First, then Scan 

    • Scan First, then Deliver

  5. If needed, set the individual scan policies for each file type:
    • Apply Global Policy (default)
    • Do Not Scan – This file type is not scanned and immediately forwarded to the user.
    • Deliver First, then Scan – The user receives the file immediately. If malware is found the quarantine policy applies.
    • Scan First, then Deliver – The users are redirected while they wait for the scan to finish. Malicious files are not delivered to the user.
       
      atp02.png
  6. In the ATP Threats section, select the Block Threats policy:
    • High Only – File classified as high risk are blocked. 
    • High and Medium (Default) – Files classified as high or medium risk are blocked.
    • High, Medium and Low – Files classified as high, medium or low risk are blocked. Only files with classification None are allowed. 
  7. Set Send Notification Emails to:
    • No – No notification emails are sent when malware is found. 
    • To System-Settings Address (Default) – A notification email is sent to the system notification email address. For more information, see How to Configure System Email Notifications.
    • To Explicit Address – Enter the Explicit Email Address and Explicit SMTP Server the Barracuda CloudGen Firewall will use to send the notification emails. 
  8. (optional) Set the ATP Data Retention (in days). These values determine how long files are kept on the system before they are deleted.
  9. Click Send Changes and Activate.

Step 2. Enable ATP in the Firewall, Configure Automatic Quarantine Policy and Quarantine for the HTTP Proxy

You must enable ATP in the security policy of the forwarding firewall and enable the quarantine for the HTTP proxy.

  1. Go to CONFIGURATION > Configuration Tree > Box > Virtual Servers > your virtual server > Assigned Services > Firewall > Security Policy.
  2. Click Lock
  3. In the Advanced Threat Protection section click Enable ATP in the firewall.
  4. Select the Automatic Blacklist Policy:
    • No auto quarantining – No connections are blocked.
    • User only – All connections by the infected user are blocked regardless of the source IP address.
    • User@IP (AND) – All connections originating from the infected source IP address and the infected user are blocked.
    • User, IP (OR) – All connections coming from the infected source IP address and/or the infected user are blocked.
  5. Select the Enable Quarantine for HTTP Proxy checkbox.
    atd_proxy01.png
  6. Click Send Changes and Activate.

Quarantine Management

Manually Placing a User and/or IP Address in Quarantine

If you are not using automatic quarantine policy, the administrator can also place a user in quarantine manually.

  1. Go to FIREWALL > ATP.
  2. Click the Scanned Files tab.
  3. Double click the malicious file. The ATP File Details window opens.
  4. In the File Download section select the user in the list. 
  5. Click Quarantine. The Select Quarantine Policy window opens.
  6. Select the Quarantine Policy:
    • Block only Users – Place the user in quarantine, but not the source IP address.
    • Block only IP Addresses – Place the IP address in quarantine, but not the user.
    • Block User @ IP (logic AND) –  Place user@IP address in quarantine.  Both user and IP address have to match.
    • Block User, IP (logic OR) – Place the user and IP address in quarantine. Either user or IP address have to match.
  7. Click OK.

The user and/or IP address are now in quarantine network object (Click the Quarantine tab to verify). Create an access rule using the ATP User Quarantine network object to block connection to and from the infected users and/or IP addresses. 

Removing a User and/or IP Address from Quarantine
  1. Go to FIREWALL > ATP.
  2. Click the Quarantine Tab.
  3. Right click the user or IP address you want to remove from quarantine.
  4. Click Remove from Quarantine

The user and/or IP address is removed from the quarantine network object.

Download a Scan Report

You can download a short or long version of scan report.

  1. Go to FIREWALL > ATP.
  2. Double click the scanned file. 
  3. Click Download Report and select the report type:
    • Summary Report
    • Full Report
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