Endpoint Manager

• Introduction To Comodo Client Security
  • Special Features
  • System Requirements
  • Install Comodo Client Security
  • Start Comodo Client Security
  • The Main Interface
    • The Home Screen
    • The Tasks Interface
    • The Widget
    • The System Tray Icon
  • Understand Security Alerts
  • Password Protection
• 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
    • Automatically Scan Unrecognized And Quarantined Files
  • Instantly Scan Files And Folders
  • Process Infected Files
  • Manage Virus Database Updates
  • Manage Blocked Autoruns
  • Manage Quarantined Items
• Firewall Tasks - Introduction
  • Configure Internet Access Rights For Applications
  • Stealth Your Computer Ports
  • Manage Network Connections
  • Stop All Network Activities
  • View Active Internet Connections
• Containment Tasks - Introduction
  • Run An Application In The Container
  • Reset The Container
  • Identify And Kill Unsafe Running Processes
  • Open Shared Space
  • The Virtual Desktop
    • Start The Virtual Desktop
    • The Main Interface
    • Run Browsers Inside The Virtual Desktop
    • Open Files And Run Applications Inside The Virtual Desktop
    • Pause And Resume The Virtual Desktop
    • Close The Virtual Desktop
  • Containment Statistics Analyzer
• DLP Tasks - Introduction
  • Run Data Loss Prevention Scans
  • Manage DLP Quarantined Files
• Advanced Tasks - Introduction
  • Create A Rescue Disk
    • Download And Burn Comodo Rescue Disk
  • Remove Deeply Hidden Malware
  • Manage CCS Tasks
  • View CCS Logs
    • Antivirus Logs
    • VirusScope Logs
    • Firewall Logs
    • HIPS Logs
    • Containment Logs
    • Website Filtering Logs
    • Device Control Logs
    • Autorun Event Logs
    • Alert Logs
    • CCS Tasks Logs
    • File List Changes Logs
    • Vendor List Changes Logs
    • Configuration Changes Logs
    • Virtual Desktop Event Logs
    • Data Loss Prevention Event Logs
    • Search And Filter Logs
  • Submit Files For Analysis To Comodo
  • View Active Process List
• CCS Advanced Settings
  • General Settings
    • Customize User Interface
    • Configure Virus Database Updates
    • Log Settings
    • Manage CCS Configurations
      • Comodo Preset Configurations
      • Personal Configurations
    • Manage Performance
  • Antivirus Configurations
    • Real-time Scanner Settings
    • Scan Profiles
  • Firewall Configuration
    • General Firewall Settings
    • Application Rules
    • Global Rules
    • Firewall Rule Sets
    • Network Zones
      • Network Zones
      • Blocked Zones
    • Port Sets
  • HIPS Configuration
    • HIPS Settings
    • Active HIPS Rules
    • HIPS Rule Sets
    • HIPS Groups
      • Registry Groups
      • COM Groups
  • Protected Objects
    • Protected Objects - HIPS
      • Protected Files
      • Blocked Files
      • Protected Registry Keys
      • Protected COM Interfaces
    • Protected Objects - Containment
      • Protected Files And Folders
      • Protected Keys
  • Data Loss Prevention
    • DLP Monitoring Rules
    • DLP Discovery Rules
    • DLP Keyword Groups
  • Containment Settings
    • Containment Settings
    • Auto-Containment Rules
    • Virtual Desktop Settings
    • Containment - An Overview
    • Unknown Files - The Scanning Processes
  • File Rating Configuration
    • File Rating Settings
    • File Groups
    • Submitted Files
  • Advanced Protection
    • VirusScope Settings
    • Scan Exclusions
    • Device Control Settings
    • Script Analysis Settings
    • Miscellaneous Settings
  • Web Filter Settings
    • Website Filtering Rules
    • Website Categories
• Appendix 1 - CCS How To... Tutorials
  • Enable / Disable AV, Firewall, Auto-Containment And VirusScope Easily
  • Set Up The Firewall For Maximum Security And Usability
  • Block Internet Access While Allowing Local Area Network (LAN) Access
  • Set Up HIPS For Maximum Security And Usability
  • Create Rules To Auto-Contain Applications
  • Run An Instant Antivirus Scan On Selected Items
  • Create An Antivirus Scan Schedule
  • Run Untrusted Programs Inside The Container
  • Run Browsers Inside The Container
  • Restore Incorrectly Quarantined Items
  • Submit Quarantined Items To Comodo Valkyrie For Analysis
  • Enable File Sharing Applications Like BitTorrent And Emule
  • Block Any Downloads Of A Specific File Type
  • Disable Auto-Containment On A Per-application Basis
  • Switch Off Automatic Antivirus Updates
  • Suppress CCS Alerts Temporarily
  • Control External Device Accessibility
• Appendix 2 - Comodo Secure DNS Service
  • Router - Manually Enable Or Disable Comodo Secure DNS
  • Windows - Enable Comodo Secure DNS
• About Comodo Security Solutions

Block any Downloads of a Specific File Type

 

This page explains how to configure CCS to prohibit downloads of specific types of file.

Example scenarios:

• Some malicious websites try to push malware in .exe file format. These files, known as executables, can run commands on your computer. If the .exe is malicious then these commands could install a virus, initiate a buffer overflow attack or could contain 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 may also want to block the download of audio files (.wma, .mp3, .wav, .midi), video files (.wmv, .avi, .mpeg, .swf ) or image files (.bmp. .jpg, .png) for various reasons.

You can block downloads of a specific file type by configuring 'Blocked Files' in the HIPS module:

1. Click 'Settings' on the CCS home screen

2. Click 'HIPS' > 'Protected Objects'

3. Click the 'Blocked Files' tab:

4. Click 'Add' > 'Applications'.

5. Browse to the default download folder for your browser from the 'Open' dialog:

The default download location for most browsers is C:/Users/[username]/Download.

6. Select any file from the folder and click 'Open'.

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

7. Select the entry from the Blocked Files interface, and click 'Edit' at the top

8. Replace the name of the file with simply '*.file_extension', where 'file_extension' is the file type you wish to block. For example:

• Change 'C:/Users/[username]/Downloads/file-name.pdf' to C:/Users/[username]/Downloads/*.exe to block all files with *.exe extension

• Change 'C:/Users/[username]/Downloads/file-name.xls' to C:/Users/[username]/Downloads/*.jpg to block all files with *.jpg extension
  

 

9. Click 'OK' in the 'Edit Property' dialog.

10. Click 'OK' to save your settings.

This will block browser downloads of the specific file type to your 'Downloads' folder. Repeat the process if other browsers on your system have a different download folder.

 

Note: Blocking files in this way will only block downloads of specific file types to specific folders. If you change the folder for browser downloads then the download will be allowed.

 

Tip: To unblock future downloads, go to 'HIPS' > 'Protected Objects' > 'Blocked Files', select the file path, and choose 'Remove'. To unblock individual files, go to 'General Tasks' > 'Unblock Applications' and choose 'Unblock'.