Comodo Internet Security

• Introduction To Comodo Internet Security
  • Special Features
  • System Requirements
  • Installation
    • CIS Premium – Installation
    • CIS Pro - Installation And Activation
    • CIS Complete - Installation And Activation
    • Activating CIS Pro/Complete Services After Installation
      • Activating Your License
      • Activating Your Guarantee Coverage
      • Renewal Or Upgrading Your License
  • Starting Comodo Internet Security
  • The Main Interface
    • The Home Screen
    • The Tasks Interface
    • The Widget
    • The System Tray Icon
  • Understanding Security Alerts
• General Tasks – Introduction
  • Scan And Clean Your Computer
    • Run A Quick Scan
    • Run A Full Computer Scan
    • Run A Rating Scan
    • Run A Custom Scan
      • Scan A Folder
      • Scan A File
      • Create, Schedule And Run A Custom Scan
  • Instantly Scan Files And Folders
  • Processing Infected Files
  • Manage Virus Database And Program Updates
  • Manage Quarantined Items
  • View CIS Logs
    • Antivirus Logs
      • Filtering Antivirus Logs
    • Firewall Logs
      • Filtering Firewall Logs
    • Defense+ Logs
      • Filtering Defense+ Logs
    • Alerts Logs
      • Filtering Alerts Displayed Logs
    • Tasks
      • Filtering Tasks Launched Logs
    • Configuration Changes
      • Filtering Configuration Changes Logs
  • Manage CIS Tasks
  • View Active Internet Connections
  • View Active Process List
• Firewall Tasks – Introduction
  • Allow Or Block Internet Access To Applications Selectively
  • Stealth Your Computer Ports
  • Manage Network Connections
  • Stop All Network Activities
  • Advanced Firewall Settings
• Sandbox Tasks – Introduction
  • The Virtual Kiosk
    • Starting The Virtual Kiosk
    • The Main Interface
    • Running Browsers Inside The Virtual Kiosk
    • Opening Files And Running Applications Inside The Virtual Kiosk
    • Configuring The Virtual Kiosk
    • Closing The Virtual Kiosk
  • Run An Application In The Sandbox
  • Reset The Sandbox
• Advanced Tasks – Introduction
  • Create A Rescue Disk
    • Downloading And Burning Comodo Rescue Disk
  • Remove Deeply Hidden Malware
  • Submit Files
  • Identify And Kill Unsafe Running Processes
• Advanced Settings
  • General Settings
    • Customize User Interface
    • Configure Program And Virus Database Updates
    • Log Settings
    • Manage CIS Configurations
      • Comodo Preset Configurations
      • Importing/Exporting And Managing Personal Configurations
  • Security Settings
    • Antivirus Settings
      • Real-time Scanner Settings
      • Scan Profiles
      • Exclusions
    • Defense+ Settings
      • HIPS Behaviour Settings
      • Active HIPS Rules
      • HIPS Rule Sets
      • Protected Objects
        • Protected Files
        • Blocked Files
        • Protected Registry Keys
        • Protected COM Interfaces
      • Behavior Blocker
        • The Sandbox - An Overview
          • Unknown Files - The Auto - Sandboxing And Scanning Processes
      • Configure The Sandbox
    • Firewall Settings
      • Firewall Behavior Settings
      • Application Rules
      • Global Rules
      • Firewall Rule Sets
      • Network Zones
        • Network Zones
        • Blocked Zones
      • Port Sets
    • Manage File Rating
      • File Rating Settings
      • Trusted Files
      • Unrecognized Files
      • Submitted Files
      • Trusted Vendors List
• Comodo GeekBuddy
  • Overview Of Services
  • Activation Of Service
  • Launching The Client And Using The Service
  • Accepting Remote Desktop Requests
  • Chat History
  • Using Issue Tracker
  • Uninstalling Comodo GeekBuddy
• TrustConnect Overview
• Comodo Dragon
• Comodo BackUp
• Appendix 1 CIS How To... Tutorials
  • Enabling / Disabling Security Components Easily
  • Setting Up The Firewall For Maximum Security And Usability
  • Blocking Internet Access While Allowing Local Area Network (LAN) Access
  • Setting Up The HIPS For Maximum Security And Usability
  • Setting Up The Behavior Blocker For Maximum Security And Usability
  • Password Protect Your CIS Settings
  • Reset Forgotten Password (Advanced)
  • Running An Instant Antivirus Scan On Selected Items
  • Creating An Antivirus Scanning Schedule
  • Running Untrusted Programs Inside Sandbox
  • Running Browsers Inside Sandbox
  • Running Untrusted Programs Inside Virtual Kiosk
  • Running Browsers Inside The Virtual Kiosk
  • Restoring Incorrectly Quarantined Item(s)
  • Submitting Quarantined Items To Comodo For Analysis
  • Enabling File Sharing Applications Like BitTorrent And Emule
  • Blocking Any Downloads Of A Specific File Type
  • Disabling Behavior Blocker And Auto-Sandboxing On A Per-application Basis
  • Switching Between Complete CIS Suite And Individual Components (just AV Or FW)
  • Switch Off Automatic Antivirus And Software Updates
  • Suppressing CIS Alerts Temporarily While Playing Games
  • Renewing Your License
• Appendix 2 - Comodo Secure DNS Service
  • Router - Manually Enabling Or Disabling Comodo Secure DNS Service
  • Windows XP - Manually Enabling Or Disabling Comodo Secure DNS Service
  • Windows 7 / Vista - Manually Enabling Or Disabling Comodo Secure DNS Service
• Appendix 3 - Glossary Of Terms
• About Comodo Security Solutions

Blocking any Downloads of a Specific File Type

Comodo Internet Security can be configured to block downloads of specific types of file.

Example scenarios:

• Some malicious websites try to push downloads of malware in .exe file format. .exe files are programs which can execute commands on your computer. If the .exe is malicious in intent then these commands could include the installation of key logging programs, initiation of buffer overflow attacks or code to turn your PC into a zombie. For this reason, you may wish to block all downloads of files with a .exe file extension.

• You want to avoid downloading media files like audio files (e.g. files with extensions .wma, .mp3, .wav, .midi), video files (e.g. files with extensions .wmv, .avi, .mpeg, .swf ) or image files (e.g. files with extensions .bmp. .jpg, .png) for your disk space restrictions.

To selectively block downloading of specific file type, you need to configure Defense+ component of CIS to block the specific file type from the default download folder of your browser.

1. Open 'Tasks' interface by clicking the green curved arrow at top right of the 'Home' screen.

2. Open 'Advanced Tasks' by clicking ' Advanced Tasks' from the Tasks interface and click 'Open Advanced Settings'.

3. 3. Click 'Security Settings' > 'Defense+ ' > 'HIPS' > 'Protected Objects' from the left hand side pane.

4. Click 'Blocked Files' tab.

 

4. Click the handle from the bottom and choose 'Add' > 'Applications'.

5. Browse to the default download folder for that particular file type of your Internet Browser from the Open dialog.

• For example, the default download locations for some file types in Internet Explorer are given below:

• Executable files - C:\Documents and Settings\user name\Local Settings\Temporary Internet Files\

• Document files - C:\Documents and Settings\user name\My Documents\

• Image files - C:\Documents and Settings\user name\My Documents\My Pictures\

• Music files - C:\Documents and Settings\user name\My Documents\My Music\

• Video files - C:\Documents and Settings\user name\My Documents\My Videos\.

7. Select file from the folder and click 'Open'.

The file will be added to 'Blocked Files' list.

8. Select the entry from the Blocked Files interface, click the handle from the bottom and choose Edit.

The Edit Property dialog will appear.

9. Change the file name at the end of the file path to *.file_extension” (e.g. \*.exe, \*.jpg).

10. Click OK in the 'Edit Property' dialog

11. Click OK in the Advanced Settings interface to save your settings

The download of the specific file type to the specified folder through the browser will be blocked. If you have more than one browser, repeat the same for the other browsers too.