• Introduction To Comodo Client - Security For Linux
  • Special Features
  • System Requirements
  • Install Comodo Client - Security For Linux
  • Start CCS For Linux
  • Understand CCS Alerts
• The Summary Screen
• Antivirus Tasks - Introduction
  • Run A Scan
  • Update Virus Database
  • Scheduled Scans
  • Quarantined Items
  • Scan Profiles
  • Scanner Settings
    • Real Time Scan
    • Manual Scan
    • Scheduled Scan
    • Exclusions
• More Options - Introduction
  • Preferences
    • Language Settings
    • Log Settings
    • Connection Settings
    • Update Settings
    • External Device Control Settings
  • Manage My Configurations
    • Xcitium Preset Configurations
    • Import / Export And Manage Personal Configurations
  • Diagnostics
  • View Antivirus Events
    • Log Viewer Module
      • Antivirus Logs
        • Filter Antivirus Logs
      • Device Control Logs
        • Filter Device Control Logs
      • Alerts Displayed Logs
        • Filter Alerts Displayed Logs
      • Tasks Launched Logs
        • Filter Tasks Launched Logs
      • Configuration Change Logs
        • Filter Configuration Change Logs
  • Help
  • About
• Appendix 1 - CCS For Linux How To Tutorials
  • Scan Your Computer For Viruses
  • View Antivirus Events
  • Configure Database Updates
  • Quickly Set Up Security Levels
  • Change CCS Language Settings
  • Run An Instant Antivirus Scan On Selected Items
  • Create A Scheduled Scan
  • Restore Incorrectly Quarantined Item(s)
  • Switch Off Automatic Antivirus Updates
  • Password Protect Your CCS For Linux Settings
  • Control External Device Accessibility
• About Xcitium

Antivirus Tasks - Introduction

• Click the 'Antivirus' tab on the CCS home-screen to open this interface.

• The tasks screen lets you run on-demand virus scans and configure scanner settings.

• You can also set up a scan schedule, manage quarantined items, update the virus database, and create a custom scan profile.
  

Background – How antivirus scans work

1. Files on the host are checked against the local virus database and Xcitium's master, cloud database.

• Note – Realtime scanning uses only local virus database.

2. Discovered malware is handled per the scanner settings. You can automatically quarantine threats, or have an alert shown which lets you choose what to do with each threat.

3. If the file's signature is not available in FLS, then the file is given an 'unknown' trust rating. Unknown files are submitted to Valkyrie for analysis if so configured in the Xcitium Enterprise profile.

• Verdict Cloud  is Xcitium's online file rating system. It tests the runtime behavior of unknown files in order to identify those that are malicious.

• Note – You need to enable 'Enable Cloud Scanning' in settings to activate this feature.

4. Unknown files run normally until Valkyrie analysis is complete.

5. If Valkyrie finds that the file is malicious then it is added to the malware blacklist. CCS will flag the file as a virus on the next scan.

The following sections explain about each task in detail:

• Run a Scan

• Update Virus Database

• Quarantined Items

• Scheduled Scans

• Scan Profiles

• Scanner Settings