Squid und ClamAV

Installation von Clamav

• apt install c-icap clamav clamdscan clamav-daemon libicapapi-dev libssl-dev git

Tool zum kompilieren

apt install gcc make

Über git clone squidclamav Source runterladen

• git clone https://github.com/darold/squidclamav

Kompilieren

• cd squidclamav
• ./configure && make && make install

Squid Konfiguration erweitern

/etc/squid/squid.conf

...
icap_enable on
icap_send_client_ip on
icap_send_client_username on
icap_client_username_encode off
icap_client_username_header X-Authenticated-User
icap_preview_enable on
icap_preview_size 1024

icap_service service_req reqmod_precache bypass=0 icap://127.0.0.1:1344/squidclamav
icap_service service_resp respmod_precache bypass=0 icap://127.0.0.1:1344/squidclamav

adaptation_access service_req allow all
adaptation_access service_resp allow all
...

c-icap aktivieren

• cat /etc/default/c-icap

START=yes

• cat /etc/c-icap/c-icap.conf

Service squidclamav squidclamav.so

diverse Dienste starten

• systemctl restart clamav-freshclam.service
• systemctl restart clamav-daemon.service
• systemctl restart c-icap.service
• systemctl restart squid

Bugfix

cd /var/lib/clamav/
wget https://www.danami.com/hotfix/main.cvd
wget https://www.danami.com/hotfix/daily.cld
chown clamav:clamav main.cvd
chown clamav:clamav daily.cld
systemctl restart clamav-daemon

Hier kann man Testen

• https://www.eicar.org/download-anti-malware-testfile/

Der Log zum clamav

• tail -f /var/log/clamav/clamav.log

Tue Sep 27 15:12:56 2022 -> instream(local): Win.Test.EICAR_HDB-1(44d88612fea8a8f36de82e1278abb02f:68) FOUND
Tue Sep 27 15:13:05 2022 -> instream(local): Win.Test.EICAR_HDB-1(44d88612fea8a8f36de82e1278abb02f:68) FOUND
Tue Sep 27 15:13:16 2022 -> instream(local): Win.Test.EICAR_HDB-1(e4968ef99266df7c9a1f0637d2389dab:308) FOUND
Tue Sep 27 15:14:12 2022 -> instream(local): Win.Test.EICAR_HDB-1(e4968ef99266df7c9a1f0637d2389dab:308) FOUND
Tue Sep 27 15:15:43 2022 -> instream(local): Win.Test.EICAR_HDB-1(44d88612fea8a8f36de82e1278abb02f:68) FOUND
Tue Sep 27 15:16:50 2022 -> instream(local): Win.Test.EICAR_HDB-1(e4968ef99266df7c9a1f0637d2389dab:308) FOUND
Tue Sep 27 15:16:57 2022 -> instream(local): Win.Test.EICAR_HDB-1(44d88612fea8a8f36de82e1278abb02f:68) FOUND

Links

• https://github.com/darold/squidclamav