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+---- Thread: Backcat - Back-connect Utility (/showthread.php?tid=3822407)
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Backcat - Back-connect Utility - cheatson - Oct 23, 2013
![[Image: KYt0Osx.jpg]](https://i.imgur.com/KYt0Osx.jpg)
[+] Outline:
A simple utility [*nix compatible] for making life easier when back-connecting from a foreign host where firewall rules are not known. Run a copy locally specifying a port range to listen on (optionally specify another program to handle the connection). And on the server run a copy specifying the port destination range to try and 'brute-force' (optionally specify a local port range to bind to instead of taking the first available / and optionally specify a program to pass the connection to, e.g. "/bin/sh -i").
It's for the issue of firewall rules blocking outgoing requests to certain port ranges (e.g. anything but designated web-server ports). You can run a listener on the protected range for example and then brute-force a back-connect from the server on that range. If you listened on range 1-1000 and the server only allowed 443 for example, you would get a connection in a second or two on that port with a shell.
[+] Notes:
Port range limited to 1024 per process due to using select() instead of poll(). Reason is because debugging poll on older distros gives me a headache!
Things to make sure of before using: Your ports are forwarded correctly for the listening range, and if you are binding to ports <1024 you must be root/sudoer!
See --help for usage examples.
[+] C source: http://hackers2devnull.blogspot.co.uk/2013/10/release-backcat-back-connect-utility-nix.html
[img]http://img24.imageshack.us/img24/1800/5o9x.png[/img]
* - The Fail Collective - Oct 23, 2013
I have no use for this but nice code layout! :)
* - cheatson - Oct 24, 2013
(Oct 23, 2013 02:31 PM)The Fail Collective Wrote: I have no use for this but nice code layout! :)
Thnx bud, been working on my code readability lately :)
* - The Fail Collective - Oct 24, 2013
(Oct 24, 2013 07:19 AM)cheatson Wrote: Thnx bud, been working on my code readability lately :)
It's defiantly an improvement on layout compared to your LastDoor.c ;)
* - cheatson - Oct 24, 2013
(Oct 24, 2013 08:49 AM)The Fail Collective Wrote: It's defiantly an improvement on layout compared to your LastDoor.c ;)
yeah I know lol. I was a newb back then TT (still a newb). [checking out your C stuff, looks good]
* - EXPLICIT CONTENT - Oct 24, 2013
HQ as always, cheatson. Nice release & bookmarked ;)
* - cheatson - Oct 25, 2013
(Oct 24, 2013 10:00 AM)Codah Wrote: HQ as always, cheatson. Nice release & bookmarked ;)eatson. Ni
Thanks pal, appreciate it.
* - VipVince - Oct 25, 2013
Nice share mate, keeping it HQ as always.
* - cheatson - Oct 25, 2013
(Oct 25, 2013 03:39 AM)VipVince Wrote: Nice share mate, keeping it HQ as always.
thanks bro, more tools and utils to come :)
* - -๖ۣۜDivine- - Oct 25, 2013
Nice share Cheatson. The picture on top looks sexy as fook. (no beastality)
* - cheatson - Oct 25, 2013
(Oct 25, 2013 04:04 AM)-๖ۣۜDivine- Wrote: Nice share Cheatson. The picture on top looks sexy as fook. (no beastality)
Thanks man, and I know- I think it was even all done in illustrator quite sexy indeed.
* - ida - Oct 25, 2013
Looks good Cheatson, and thanks for sharing.
* - cheatson - Oct 25, 2013
(Oct 25, 2013 06:40 AM)Lani Wrote: Looks good Cheatson, and thanks for sharing.
Thanks Lani :). I'm supposed to be studying lol. Zero willpower!
* - lxslicew - Oct 25, 2013
This is really good. HQ Program trying it.
* - lemonweapon - Oct 26, 2013
This is pointless, why are you trying to reinvent the wheel. Next time try to be innovative..