The Spamhaus Exploits Block List

Status: Active

The XBL (Spamhaus Exploits Block List) is a real time database of known IP addresses of hijacked PC’s infected by 3rd party exploits. These can include, but are not limited to: HTTP, SOCKS, Analog X, WinGate, Formmail etc. The Spamhaus XBL also incorporates the CBL (Composite Blocking List –, and NJABL (Open Proxy IP List –

Listing Policy

The XBL lists hosts that have shown to have been infected with sophisticated worms and viruses, complete with built in SMTP spam engines and other trojan horse type exploits. The XBL contains the worst of the worst hosts on the Internet, often listing hosts that are part of multi thousand spamming and fraud networks.

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