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Proxi Hyper
- Open proxies (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, often known as "bots" or "zombies") are usually individual home or business pcs (typically running some version of microsoft windows) that have not been properly secured against malware attack, and that are connected to the internet full-time via some sort of broadband connection (so they're always available to the spammer).
- Typically, the owners of such computers do not know that their machines are open proxies, since the proxy code leaves little in the way of traceable data.
- Usually, open proxies are not detected until they have become so bogged-down with botnet traffic that they no longer have cpu time left to provide good performance for their owners' own tasks.
- The vast majority of spams are sent via direct-to-mx, usually from open proxies.
- The spammer will set up reverse web proxies on many hosts, and then use name servers under his control to frequenty change which of these proxies will be pointed to by an official dns lookup for the site.
- Many botnet spammers will use large networks of reverse proxies to shield their websites, and will rotate the proxies at intervals as small as a couple of minutes to make detection and retaliation difficult.
- Open proxies are often individual home or business PCs that have not been properly secured against attack, and that are connected to the internet full-time via a broadband connection.
- Typically, the owners of such computers do not know that their machines are open proxies since the proxy code leaves little in the way of traceable data.
- Restriction of indiscriminate relaying, along with the rise of open proxies or zombies, has greatly reduced the proportion of spam sent by traditional open relays.
- Since the open proxies are controlled "by proxy" outside recognized channels, they provide effective cover for spammers.
- Open proxies now account for the vast majority of spam mail transmissions, as they make the mail much more difficult to trace to its ultimate source.
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