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Dennis • 13 years ago

Thank you for being so googlable, and for having the version that won't trigger antivirus alarms :)

xadhix • 12 years ago

The safe version of NC.exe is still detected as a virus :(

Andrei Cozari • 4 years ago

you can use curl tool like this:
curl telnet://IP:port

Jon • 4 years ago

True. Thanks for sharing!

penguindark27 • 8 years ago

I recommend u to download the nc.exe project and make a minimus change and compile it and i will have a new id release and the antivirus won't recognize it :)

Qannas • 2 years ago

true but then recompile it

AnonymousBat • 10 years ago

This download triggers Google Antivirus alarm on Chrome. Therefore, I have yet to test it.

Amol More • 6 years ago

I am getting error "forward host lookup failed: h_errno 11004: NO_DATA" while using netcat for windows 64.

Antares • 11 years ago

Muchas gracias.

bob • 8 years ago

yeah

Thunder Buddies • 5 years ago

it is asking password for unzipping the file. Is there any open password for that?

Jon • 5 years ago

The password is nc.

Alan • 11 years ago

Thank you so much. The NetCat is very powerfull tool. This version for Windows is great.

Asd • 11 years ago

nc -l 5555, gives me an error in windows 7. "listen fuxored: INVAL"

Jon • 11 years ago

I believe that you forgot the -p flag to specify a port. The command should be like this:

nc -l -p 5555

Info • 11 years ago

Unfortunately our AV software still blocked both, but I have the source :)

yxc0031617 • 12 years ago

thanks you john!I look nc this version for a long time.

Jon • 12 years ago

No problem!

Kckclass • 12 years ago

I will be TESTING NC111nt tomorrow (Thanksgiving) on a Vista box - let you know how it works out (pray). If it works well, I'll post a link to our server (very fast) and you can download from there. Great simple page you have here - although frankly - at 100KB - you could download this with a USPS snail mail letter and get it in 30 seconds. What a dang powerful tight little program, eh?

Fakoor • 12 years ago

Well I downloaded the binary version of Rodney Beede (without the '-e' option). But still my antivirus reports a potentially unwanted program and detects it as "Generic PUP.z!ce".
[Obviously, your original binary is detected as "Tool-NetCat"]

Rodney Beede • 11 years ago

McAfee added my version to their stuff (probably because some corporate customer wants a blanket ban).  You could try using msfencoder on the exe to hide it.  You'd have to use a non-AV Windows system to do so though.  Perhaps a VM?

Rodney Beede • 11 years ago

Or try an alternative like socat or nc2.  http://grey-corner.blogspot...

Jon • 12 years ago

I've not seen that error before, and I don't know a way around it. Sorry!

Kne • 13 years ago

thanks for keeping this here - seems like nc on windows is bloody impossible to find anymore. I'm trying to teach some people about netcat but I can't get them to put up a linux box, cygwin or even a VM to play with...

You wouldn't possbily have a link to the windows-a-fied source code would you?

Jon • 13 years ago

I'm glad it helped you out. The source code is included in the zip file.

Paul Christian • 4 years ago

Many Thanks Dude..love NC!!

John • 5 years ago

The password nc is not working...

Redouane Kachach • 5 years ago

Thanks for providing the safe version :)

BJ • 5 years ago

When I launch the nc.exe everything seems fine, but as soon as I write any command (e.g. nc.exe -h). The window will close/stop. I added the folder in Windows Defender, so I should not have any problems with an antivirus programm.

john • 6 years ago

Compared to other established webpages that allow users to download, this one is not flagged at all in VirusTotal.

Jon • 6 years ago

Great! This is the reason that I added password protection to this file. Automated scanners were flagging this download and page, and encrypting the contents of the download eliminates this issue.

khay • 6 years ago

Cool... I hate windows/mac but have to use it.

No • 6 years ago

In case anyone is wondering the password is nc

Jon • 6 years ago

Thanks for the reminder. I also list this on the links to the downloads. I only include a password because this prevents automated scanners from sending me messages that my site has been hacked and is being used to host hack tools.

Logig • 6 years ago

This version of nc support -e argument.

https://nmap.org/ncat/

Logig • 6 years ago

example.com 80
GET / HTTP/1.0
Host: example.com

Host is required, or it will not work.

José Ibáñez • 7 years ago

Old version!
proxy option not supported (-x) :(

Jon • 7 years ago

There are actually different versions of the nc utility, not just older and newer. There is at least one version I'm aware of that has a -x proxy feature, but it doesn't support the original -e option.

Krùtík Pãrmâr • 7 years ago

Whenever I write "nc -nlvp 4444 -e cmd.exe",Netcat suddenly closed ! Why?

Jon • 7 years ago

This could be due to a number of issues. Do you see any output from the program? If you aren't aware, nc will automatically close with no output after the connection is closed. If you want it to continue listening, you can use -L instead of -l on Windows.

Francesco • 7 years ago

Hello, i have a problem with netcat.
I have try to download netcat on my virtualmachine that emulate windows 7
when i try to input a command on nc.exe the program closes without output.
Help me please, thank you

Jon • 7 years ago

Are you able to use netcat in other environments? Have you used it before? It's a command line application, and it doesn't do much unless you pass it the correct flags.

Francesco • 7 years ago

I never used before nc.
Though i write a correct input in the program (nc.exe), the program closes whitout output.

Jon • 7 years ago

What are you trying to do? What flags are you passing? It would be most helpful to just copy the exact syntax that you are using when running nc (e.g. nc -l 80).

Francesco • 7 years ago

I have resolved the problem with nc
But when i try to ping my virtualnachine say: 0 recived 100 lost. I have turned off the microsoft firewall in virtualmachine.
What can it be ?

Jon • 7 years ago

That really could be anything. I'd recommend reading up on how to properly configure networking on your VM platform. If you run into problems, I'd recommend posting questions on superuser.com.

Francesco • 7 years ago

The VM connection it's set on NAT
It's correct ?

Jon • 7 years ago

I'm able to provide support for you to setup your system. I'd recommend reading up on how to properly configure networking on your
VM platform. If you run into problems, I'd recommend posting questions
on superuser.com.

Francesco • 7 years ago

The error program is: forward host lookup failed: h_errno 11004: NO_DATA

Amol • 6 years ago

I am alos getting same error, how to resolve it