Oct 29, 2012 · Port 445 (SMB) is one of the most commonly and easily susceptible ports for attacks. Port 445 is a TCP port for Microsoft-DS SMB file sharing. Many (to most) Windows systems, as well as Linux, have this port open by default, with unsecured shares and un-patched systems unknowingly exposed to everyone [that wants to know].

Yes, windows should use port 139 if port 445 is no response. That's what Win7 do, and that's what I want. But Win10 do not, Win10 stick on the port 445, no matter what I am setting. I have checked the server, and found out the port 445 is not blocked on the server, but is blocked by the switch or router or gateway or something I don't know. PORT STATE SERVICE. 139/tcp open netbios-ssn. 445/tcp open microsoft-ds. this looks suspicious: 139/tcp open netbios-ssn Samba smbd 3.X - 4.X (workgroup: HITRON) why is there a workgroup created? arp -a shows this output: ( at 00:55:7b:b5:7d:f7 [ether] Should these ports be open for default? I have not installed samba. Network problem : A computer with an open port 445 can not connect to my pc with win10 and an open port 139 only ! How to open port 445 for filetransfer to another computer ? This thread is locked. Jul 19, 2017 · I can access them using the web interface but not using Windows Explorer So i digged into this a little bit and found out that the smb ports 139 and 445 are not listening I allready disabled and enabled Microsoft network in the gui and of course I rebooted the system multiple times. Ports 137-139 are for NetBios/Name resolution. Without it you will have to access machines by IP address opposed to NetBIOS name. Example \\\share_name opposed to \\my_file_server\share_name. So port 445 is sufficient if you can work with IP addresses only. May 15, 2011 · So I did a little bit of research and discovered that TCP port 445 is a potentially huge whole for hackers to get in. I then searched on how to block TCP port 445 by going into the regedit and I

Nov 07, 2010

Dec 13, 2019 · This issue occurs if a machine with the specified IP address does not exist. If a machine does exist at this address, a personal firewall or port filtering device may be dropping packets destined for TCP ports 139 and 445. Resolution . To resolve this issue: Ensure that a machine actually exists at the specified name or IP address. Activate it and your computer uses port 139. Deactivate the option and the system wants to use 445. So the protocol layers are: port 139: SMB -> NetBIOS -> TCP port 445: SMB -> . -> TCP. The 4 dots are not exactly random. Microsoft leaves 4 empty bytes in place so the same source code can process the message, regardless of 139 or 445. Did a scan of my router and ports 139 and 445 are open. I obviously don't want them to be but how do I close them? Guaranteed communication over port 139 is the key difference between TCP and UDP. UDP port 139 would not have guaranteed communication in the same way as TCP. Because protocol TCP port 139 was flagged as a virus (colored red) does not mean that a virus is using port 139, but that a Trojan or Virus has used this port in the past to communicate

How To Hack PC: OPEN PORT 139 , 138 , 137 , 136 ,135 AND

Mar 10, 2020