Proxy 2010 Filter

• Since the open proxies are controlled "by proxy" outside recognized channels, they provide effective cover for spammers.
• Botnet: A term typically applied to a group of open proxy computers ("zombies") used for spam transmission and related tasks.
• Direct-to-mx mailing can be done from a simple dialup or broadband account belonging to the spammer, or by open proxy machines controlled by the spammer.
• These are often open proxy machines belonging to unknowing home users.
• An open proxy is a third-party computer that has been configured to serve spammers by untraceably relaying their mail, hosting, or guarding their websites, or performing other tasks.
• A reverse web proxy takes requests from website visitors and relays them to the protected spam website, returning any data it receives from the protected site back to the visitor.
• To the visitor, the proxy itself appears to be the spam website, and there is no good way to tell that it is actually only a proxy.
• An open socks proxy is a security hole used by spammers to hide their originating ip address.
• Spam can made to appear to come from the socks proxy instead of the actual origin.
• Socks is a networking proxy protocol that enables hosts on one side of a SOCKS server to gain full access to hosts on the other side of the SOCKS server without requiring direct IP-reachability.
• An open proxy computer ("zombie") that is used for transmitting spam e-mail or supporting spam websites.
• A computer that has been implanted with open proxy software is called a zombie and can form part of a botnet used by spammers.

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