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Software / KDL Protect

KDL Protect

A file you received worries you, or a USB stick you don't trust. KDL Protect runs the scan with the antivirus already on your computer and explains the result.

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Scan result: the item flagged by Microsoft Defender, its explanation and the quarantine button.Scan result: the item flagged by Microsoft Defender, its explanation and the quarantine button.

What it does

  • On-demand scan of a file or a folder
  • Engine, version and signature age shown
  • The result says “no threat detected by the engine”, never “safe file”
  • Verified quarantine, restore without overwriting anything
  • History and log kept on your computer, no telemetry
  • Portable version for a USB stick (Windows)

Screenshots

Details of flagged files: engine, hash, size (harmless EICAR test files).Details of flagged files: engine, hash, size (harmless EICAR test files).
The quarantine: isolated files can no longer run and can be restored.The quarantine: isolated files can no longer run and can be restored.
Scan history: folder, date, engine and number of flagged files.Scan history: folder, date, engine and number of flagged files.

Download

Free, no account.

Version 0.7.1

WindowsYour system

Windows 10 and 11.exe installer · 24.3 MBPortable versionNo installation · 34.0 MB

LinuxYour system

Ubuntu, Debian, Mint.deb package · 29.1 MB

The Windows files are not code-signed yet: the first time you run them, Windows SmartScreen may show a warning.

SHA-256 checksums
  • KDL-Protect-Setup-0.7.1.exe29c17aa56082184d5dee6f9a814d6bd312c92a4be299c91a5d0b520a111b2270
  • KDL-Protect-Portable-0.7.1.zip500e15cb6914d5cd0ea726fd1b39e6f81e65b11467e62d2b9dc3bdaff3335f03
  • kdl-protect_0.7.1_amd64.deb7113d0353416aa701fb73ca1e3fdf1c3722196ba27dfa663edb204724554c137

Questions

Is KDL Protect an antivirus?
No. It drives the antivirus already installed: Microsoft Defender on Windows, ClamAV on Linux. It gives no real-time protection; on Windows, Defender keeps doing that.
Does “no threat detected” mean my file is safe?
No. It means the engine recognised no known threat with its current signatures.
What do I need on Linux?
ClamAV, from your distribution: sudo apt install clamav clamav-freshclam.