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Netcat in windows

Just had a nightmare finding a binary for windows that wasn’t cygwinized… eventually found it here

http://www.hackosis.com/wp-content/uploads/2007/12/nc111nt.zip

[update]

Jon Craton has mirrored this file in case the other link goes down

http://joncraton.org/files/nc111nt.zip

(Cheers :)

[update 2]

It seems that antivirus programs mark netcat as a threat when actually it is just a useful tool - see conversation and links in comments for details.

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This entry was posted on Thursday, May 22nd, 2008 at 9:36 pm and is filed under troubleshooting. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

10 Responses to “Netcat in windows”

  1. Dave Says:
    June 19th, 2008 at 1:55 am

    Thanks mate, saved me a whole lot of looking, I was just starting to despair :-)

  2. Jon Craton Says:
    June 20th, 2008 at 12:04 am

    I had a hard time finding this file myself. Thanks for the link. I found this blog via Google. :)

    I have mirrored the file on my site in case that link goes down in the future.

    http://joncraton.org/files/nc111nt.zip

  3. Shane Says:
    June 24th, 2008 at 6:03 pm

    It won’t go down. :p

  4. Abel Cheung Says:
    July 1st, 2008 at 8:47 pm

    But the real origin of netcat win32 port, http://www.vulnwatch.org/netcat/, is indeed down for (at least) days. It even disappeared completely from google cache. So your copy may be more valuable now :)

  5. Madman Says:
    August 1st, 2008 at 10:11 pm

    Too bad these links no longer work. Only downloads 65,536 bytes and ZIP complains of missing signature and cannot open it.

  6. Valamer Kutayami Says:
    August 19th, 2008 at 12:51 am

    Thank you very much, I had a very hard time tracking down this little tool a week or so ago, I did end up finding it but then someone deleted it on me and I couldn’t remember where I got it from last time.
    Your just saved me a lot of time searching all over again :)

  7. stu Says:
    August 19th, 2008 at 3:53 pm

    @Madman: I just tried redownloading the first link and it seems to work ok.

  8. tpierron Says:
    August 19th, 2008 at 9:18 pm

    Hey guys, it is me or all the archives you linked contain a virus-infected executable in it ? Kapersky, Norton and AVG all complain that it is infected by RemoteAdmin.Win32.NetCat

    I recompiled the source with MinGW and no more complain …

    Maybe a false positive, since I didn’t see any port in the listening state opened while running the command, but still I wonder if you can have a similar warning if you compile the source with VC.

  9. stu Says:
    August 20th, 2008 at 3:45 pm

    @tpierron: If you read the description here http://research.sunbelt-software.com/threatdisplay.aspx?name=RemoteAdmin.Win32.NetCat&threatid=47713 it appears that netcat itself is flagged in the enterprise versions as it’s not something that “normal” users would be running on a business network. They probably flag other networking tools too.

  10. stu Says:
    August 20th, 2008 at 3:47 pm

    Here are some more details

    http://66.102.9.104/search?q=cache:wIIgDd8B6xQJ:packetstormsecurity.org/papers/virus/Taking_Back_Netcat.pdf+netcat+marked+by+virus+checker&hl=en&ct=clnk&cd=3&gl=uk&client=firefox-a

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