|06 Nov 2013||#1|
Spike in traffic with TCP source port zero has researchers worried
A significant increase this weekend in TCP traffic with source port zero detected could be part of reconnaissance efforts in preparation for more serious attacks, according to security researchers from Cisco Systems.
There’s usually no service on a system that listens on port 0 (zero), because according to the Transport Protocol port assignments by the Internet Assigned Numbers Authority (IANA), port zero is a “reserved port” and should not be used. Therefore receiving TCP (Transmission Control Protocol) traffic with a source port of zero is unusual.
“Generally speaking port zero traffic can be indicative of a possible reconnaissance attack, and may be a precursor to more serious penetration attempts,” Craig Williams, technical lead in the threat research team at Cisco, said Monday in a blog post.
|My System Specs|
|Similar help and support threads for2: Spike in traffic with TCP source port zero has researchers worried|
|Windows 7 Pro lag without CPU spike||General Discussion|
|CPU spike||Performance & Maintenance|
|WoW Lag Spike||Gaming|
|Should I be worried?||Performance & Maintenance|
|So I'm a bit worried about a rat..||System Security|
Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.
© Designer Media Ltd
All times are GMT -5. The time now is 08:03 AM.