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→Anti Virus
===Anti Virus===
===Anti Virus===
The SME Server uses the Clam AntiVirus (www.clamav.net) as the default and build-in anti virus engine. By default this system will automatically get virus signature updates from the clamav database. Other people and organizations have developed additional signatures which can be used with ClamAV.
The SME Server uses the Clam AntiVirus (www.clamav.net) as the default and build-in anti virus engine.
====Signatures====
By default this system will automatically get virus signature updates from the clamav database. Other people and organizations have developed additional signatures which can be used with ClamAV.
* Sane Security (http://www.sanesecurity.com/clamav/) - who maintains nine signature databases (Phishing and Scam)
* Sane Security (http://www.sanesecurity.com/clamav/) - who maintains nine signature databases (Phishing and Scam)
In order to use these addition databases with your Clam AV installation you need to download the databases. I have modified a script from San Security to work with SME 7.x which can be used to obtain the databases from Sane Security, MSRBL and the Malware Block List. The addition of these 5 new databases provides ~75.000 new signatures for Clam AV to work with.
In order to use these addition databases with your Clam AV installation you need to download the databases. I have modified a script from San Security to work with SME 7.x which can be used to obtain the databases from Sane Security, MSRBL and the Malware Block List. The addition of these 5 new databases provides ~75.000 new signatures for Clam AV to work with.
''Installation''
cd /etc
cd /etc
wget http://sme.swerts-knudsen.dk/downloads/unofficial-clamav-sigs-2.4/unofficial-clamav-sigs.conf
wget http://sme.swerts-knudsen.dk/downloads/unofficial-clamav-sigs-2.4/unofficial-clamav-sigs.conf
signal-event email-update
signal-event email-update
====Heuristic Scan====
HeuristicScanPrecedence is a new option in clamav 0.94.
When enabled, if a heuristic scan (such as phishingScan) detects a possible virus/phish it will stop scan immediately. Recommended, saves CPU scan-time.
To enable this feature:
config setprop clamav HeuristicScanPrecedence yes
expand-template /etc/clamd.conf
sv t clamd
Default is disabled.
===Email Clients===
===Email Clients===