Documentation

You can view the documentation below, or browse our GitHub Repository, where you can contribute to user manual and FAQ.

General | Installing ClamAV | How to Report A Bug | Miscellaneous FAQ | ClamAV Virus Database FAQ | End of Life Policy (EOL) | Potentially Unwanted Applications (PUA) | Mailing Lists FAQ | Troubleshooting FAQ | Safebrowsing | Upgrading ClamAV | ClamAV on Microsoft Windows FAQ | Which Version of ClamAV should I use? | Uninstalling ClamAV | ClamAV Overview | Interpreting Scan Alerts FAQ | Freshclam FAQ | How do I ignore a ClamAV signature?

Manual | Clam AntiVirus User Manual

Manual | UserManual | Installing ClamAV on Unix / Linux / macOS from Source | Installing ClamAV on Windows | Introduction | LibClamAV | On-Access Scanning | Creating signatures for ClamAV | Usage | ClamAV Development | Contribute

Manual | UserManual | Installation-Unix | Installation on Debian and Ubuntu Linux Distributions | Installation on macOS (Mac OS X) | Installation on Redhat and CentOS Linux Distributions

Manual | UserManual | Signatures | Trusted and Revoked Certificates | Body-based Signature Content Format | Bytecode Signatures | Signatures based on container metadata | Database Info | Dynamic Configuration (DCONF) | Passwords for archive files \[experimental\] | Extended signature format | File Type Magic | ClamAV File Types | Functionality Levels (FLEVELs) | File hash signatures | Logical signatures | PhishSigs | Using YARA rules in ClamAV | Allow list databases

Manual | UserManual | Usage | Configuration | Scanning | Signature Testing and Management

Additional | Microsoft Authenticode Signature Verification | Private Local Mirrors

Allow list databases

File allow lists

To allow a specific file use the MD5 signature format and place it inside a database file with the extension of .fp (for “false positive”). To allow a specific file with the SHA1 or SHA256 file hash signature format, place the signature inside a database file with the extension of .sfp (for “SHA false positive”).

Signature ignore lists

To ignore a specific signature from the database you just add the signature name into a local file with the .ign2 extension and store it inside the database directory.

E.g:

    Eicar-Test-Signature

Additionally, you can follow the signature name with the MD5 of the entire database entry for this signature. In such a case, the signature will no longer be ignored when its entry in the database gets modified (eg. the signature gets updated to avoid false alerts). E.g:

    Eicar-Test-Signature:bc356bae4c42f19a3de16e333ba3569c

Historically, signature ignores were added to .ign files. This format is still functional, though it has been replaced by the .ign2 database.

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