Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Spike in traffic with TCP source port zero has researchers worried


06 Nov 2013   #1

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1
 
 
Spike in traffic with TCP source port zero has researchers worried

Quote:
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.
Source

A Guy


My System SpecsSystem Spec
.

Reply

 Spike in traffic with TCP source port zero has researchers worried




Thread Tools



Similar help and support threads for2: Spike in traffic with TCP source port zero has researchers worried
Thread Forum
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

Our Sites

Site Links

About Us

Find Us

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 05:11 PM.
Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App
  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33