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Base Antivirus Logs

This Article Applies to:

  • Avast Business Hub
  • Avast Business On-Premise Console
  • Avast Small Business Solutions
  • Avast Small Office Protection

If the Avast Support Tool fails, or does not gather all of the logs requested by Business Technical Support, you can manually gather the logs to send.

Unmanaged Local Clients

  • C:\ProgramData\AVAST Software\Avast\log\
  • C:\ProgramData\AVAST Software\Persistent Data\Avast\Logs\

Managed Local Clients

  • C:\Program Files (x86)\AVAST Software\Business Agent\log.txt
  • C:\Program Files (x86)\AVAST Software\Business Agent\smbpol.db


  • /var/log/system.log

Component Logs

  • Avastsvc (core service log): C:\ProgramData\AVAST Software\Avast\log\AvastSvc.log
  • Antivirus UI log (issues with UI start, popups etc listed here): C:\ProgramData\AVAST Software\Avast\log\AvastUI.log
  • Antivirus UI javascript content: C:\ProgramData\AVAST Software\Avast\log\HtmlRemoteContent.log
  • Dumps from Crashed Components: C:\ProgramData\AVAST Software\Avast\log\unp*.mdmp
  • Self-Defense Module: C:\ProgramData\AVAST Software\Avast\log\selfdef.log
  • Anti-rootkit protection (driver start/stop): C:\ProgramData\AVAST Software\Avast\log\arpot.log
  • Anti-rootkit scan: C:\ProgramData\AVAST Software\Avast\log\aswAr*.log
  • CyberCapture/DeepScreen: C:\ProgramData\AVAST Software\Avast\log\autosandbox.log
  • Exchange Protection: C:\ProgramData\Avast Software\Avast\log\ExchangeShield.log
  • Firewall Configuration: C:\ProgramData\AVAST Software\Avast\log\FwServ.log
  • Mail Shield: C:\ProgramData\AVAST Software\Avast\log\Mail.log
  • Outlook addin: C:\ProgramData\AVAST Software\Avast\log\asOutExt64.log
  • Passwords: C:\ProgramData\AVAST Software\Avast\log\Pam.log
  • Patch Management: C:\ProgramData\Avast Software\PatchTools\History\*.zip
  • SecureDNS/Real Site: C:\ProgramData\AVAST Software\Avast\log\aswSecDns.log
  • SecureLine VPN: C:\ProgramData\AVAST Software\SecureLine\log\vpn_engine.log
  • Web Shield: C:\ProgramData\AVAST Software\Avast\log\StreamFilter.log
  • Web Shield Debug (debug logging must be enabled): C:\ProgramData\AVAST Software\Avast\log\FilterEngine.log
  • Network Inspector: C:\ProgramData\AVAST Software\Avast\log\Hns.log
  • Windows Security Center (registration of Avast to WSC): C:\ProgramData\AVAST Software\Avast\log\wsc.log