ClamAV suits people who want a free, open-source engine for detecting trojans, viruses and other malware on Windows. Cisco Systems, Inc. publishes it, and the download links to the official server at github.com. TopDown APK does not host the file.
Checking the version after installing 1.5.4
The current build is 1.5.4, a patch release dated August 7, 2026. The installer is 214.1 MB, so allow for the space. Confirm that your install reports 1.5.4, because the fixes in this release cover earlier 1.5.x builds.
For configuration, check the project page on GitHub.
What the 1.5.4 patch release fixes
The changelog lists fixes for memory-handling flaws in ZIP catalogue indexing, GPT partition names, the PESpin unpacker and the PDF parser. Some of these affect versions as far back as 0.90. The notes credit outside researchers by name, which shows the fixes are documented in the open.
When Malwarebytes or ESET make more sense
ClamAV is a detection engine only. If you want a packaged product, alternatives include Malwarebytes, ESET Security, ClamWin Free Antivirus and Emsisoft Emergency Kit.
What's new in 1.5.4
Version 1.5.4 is a patch release fixing several CVEs, including CVE-2026-20337 in ZIP catalogue handling and CVE-2026-20339 in the PESpin unpacker.
ClamAV pros and cons
Pros
- Free
- Open source under GPL-2.0, with code on GitHub
- Published by Cisco Systems, Inc.
- Patch release 1.5.4 documents each fix and its affected versions
Cons
- The installer is 214.1 MB
- No real-time protection
- No graphical interface
Is ClamAV safe?
The file comes from github.com, the official host, and is not hosted by TopDown APK. The publisher is Cisco Systems, Inc., and the licence is GPL-2.0 with public source. No independent security review is available, so keep it on 1.5.4 or later.
How to install ClamAV
- Press the download button to get the official file.
- Run the installer you saved and confirm the Windows security prompt if the publisher matches.
- Follow the setup steps, then start ClamAV from the Start menu.
