Listing criteria for inclusion in the Spamhaus Blocklist (SBL)
Listing criteria for inclusion in the Spamhaus Blocklist (SBL)
Snowshoe spam ranges
Snowshoe spam style configurations, particularly ranges and domains with poor or frequently changing identification.
Spam Hosting
IPs that host spam-advertised websites or other resources used by spammers or malware operations.
Spam Operations
Known spam or malware operations listed in the Spamhaus Register of Known Spam Operations (ROKSO).
Spam Services
IPs that host services that support spam or malware operations, including but not limited to:
Bulletproof hosting: DNS, web, mail or other services provided with either explicit or tacit actions not to disconnect customers who spam or engage in cybercrime.
Spamware: Sales or distribution of software whose main purpose is to aid in the sending of high volume unsolicited bulk email.
Scrapers: Sales or distribution of software whose main purpose is to automatically collect email addresses from web sites or whois records.
Security Threats
Any IP address that is deemed to be a security risk to Spamhaus SBL users, including but not limited to:
Botnet controllers: IPs that host botnet command and control (C&C) servers.
Malware: IPs that host malware-infected websites or other resources that participate in any aspect of attempting to infect other computers, or extract data or personal information, without the knowledge or consent of their owners.
Phish sites: IPs that host fake login pages to bank and financial institution websites, customer email accounts, customer web hosting sites, VPNs, and other sites in an attempt to steal sensitive private information and/or login credentials.
Ransomware: IPs that host websites or other resources that participate in any aspect of holding user data for ransom by encrypting it and then demanding payment for the key to decrypt it (“Ransomware”).
Hacking Attempts: IPs that are the source of attempts to crack passwords, scan for vulnerabilites, or other attempts to trespass on other computers without the knowledge or consent of their owners.
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