"Malware samples are available for download by any responsible whitehat researcher. By downloading the samples, anyone waives all rights to claim punitive, incidental and consequential damages resulting from mishandling or self-infection."

EICAR Test Files over HTTP
eicar.com
eicar.com.txt
eicar_com.zip
eicarcom2.zip

Threat Prevention Test
Jorik.Gen Phone Home
CVE-2011-3368

Malicious DMG
Sample.dmg

EICAR Test Files over FTP
eicar.com
eicar.com.txt
eicar_com.zip
eicarcom2.zip

DNS Security Test sites
Malware
C2
DGA
DNS Tunneling

URL Filtering Test sites
Phishing
C2

Proxy Sites
FaceBook via Proxy

Credential Theft