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| | Wired News: Spam Masquerades as Admin Alerts |
 | | By tapping into Messenger, a Windows service originally designed to enable system administrators to send messages to users on a network, Direct Advertiser can deliver "completely anonymous and virtually untraceable" ads "straight to the screen of your client," according to the company's website. |
 | | The Messenger service, not to be confused with Microsoft's MSN Messenger chat client, is enabled by default on Windows 2000, NT and XP systems, according to Lawrence Baldwin, operator of the myNetWatchman computer intrusion reporting service. |
 | | While Windows Messenger traditionally uses commonly protected ports 137 and 139, Flynn said the recent pop-ups appear to use port 135, which is often left unprotected by a firewall because it's a vital conduit for communicating with a Microsoft service called RPC. |
| www.wired.com /news/technology/0,1282,55795,00.html (785 words) |
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