TCP Port 65506
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TCP 65506
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TCP Port 65506

Common Use

Used as a Spam email relay.

Inbound Traffic

With the recent outbreak of myDoom a number of systems were infected with viruses (Agobot for example) via upload and execution to TCP port 3127.  These virus would then install a proxy on TCP port 65506 which was then used to relay email spam.

Outbound Traffic

Outbound scans especially if occurring in volume should be considered an indication of a possible infection or compromise on the source computer and should be investigated immediately.

Additional Information

PortPeeker Capture of 65506 scans and email relay attempts

Page last updated on March 12, 2004