VirusTotal
Malware Domain List (Malware Domain List)
MalwarePatrol (MalwarePatrol)
Malwares.com (Saint Security)
Netcraft (Netcraft)
Opera (Opera)
Palevo Tracker (Abuse.ch)
ParetoLogic URL Clearing House (ParetoLogic)
Phishtank (OpenDNS)
Quttera (Quttera)
SCUMWARE (Scumware.org)
SecureBrain (SecureBrain)
Sophos (Sophos)
SpyEye Tracker (Abuse.ch)
StopBadware (StopBadware)
Sucuri SiteCheck (Sucuri)
ThreatHive (The Malwarelab)
Trend Micro Site Safety Center (Trend Micro)
urlQuery (urlQuery.net)
VX Vault (VX Vault)
Websense ThreatSeeker (Websense)
Webutation (Webutation)
Wepawet (iseclab.org)
Yandex Safebrowsing (Yandex)
ZCloudsec (Zcloudsec)
ZDB Zeus (ZDB Zeus)
Zeus Tracker (Abuse.ch)
Zvelo (Zvelo)