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Index > Windows > I'm trying to make SYN flooder on Windows OS

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Overflowz



Joined: 03 Sep 2010
Posts: 1046
Overflowz
Hello everyone, I have little question. Is there any way to block recipient via winsock ? I'm trying to play with packets. I'm trying to make SYN flooder on Windows OS. Microsoft said, RAW packets are blocked on Windows, it can be used only with winpcap (like nmap does). As I know, when packet is sent to server, it responds back answer, but SYN flood style, it just sends with spoofed IP address and packets are sent to random, not known IP addresses. How if I'll do that manually ? Here's what I think if that's even possible I don't know.. Just asking, if it's possible. I'm trying to block inbound connections from that IP address, what I'm going to flood. Is there any way to do that ? if it is, it will work like SYN flooder right ?

P.S for security reasons only of course.
Thanks.
Post 18 Sep 2011, 23:37
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typedef



Joined: 25 Jul 2010
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typedef
Overflowz wrote:

P.S for security reasons only of course.
Thanks.


Why not just admit it Shocked

Don't hide behind the "Security Reasons" Very Happy

Here's a pillbox (Very Happy) for you http://www.binarytides.com/blog/syn-flood-dos-attack/
Post 18 Sep 2011, 23:59
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17716
Location: In your JS exploiting you and your system
revolution
Overflowz: Do you really expect us to help you write your malware?
Overflowz wrote:
P.S for security reasons only of course.
I doubt that.


Last edited by revolution on 19 Sep 2011, 00:16; edited 1 time in total
Post 19 Sep 2011, 00:02
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asmhack



Joined: 01 Feb 2008
Posts: 431
asmhack
Actually he needs that code to simulate the DoS Attack in lab environment to proof and study the concept of three-way handshaking.
Post 19 Sep 2011, 00:09
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17716
Location: In your JS exploiting you and your system
revolution
asmhack wrote:
Actually he needs that code to simulate the DoS Attack in lab environment to proof and study the concept of three-way handshaking.
Hehe. Yeah, sure, that must be it. [/sarcasm]
Post 19 Sep 2011, 00:16
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typedef



Joined: 25 Jul 2010
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typedef
asmhack wrote:
Actually he needs that code to simulate the DoS Attack in lab environment to proof and study the concept of three-way handshaking.


I can prove it if he gives me his public IP address. I'll port scan him and DDOS him with botnets at the same time and make a video of it in action. Wink
Post 19 Sep 2011, 00:41
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Overflowz



Joined: 03 Sep 2010
Posts: 1046
Overflowz
revolution
as I guess, you don't trust anyone in your life, and as I said, before and everytime I'm saying, I AM NOT WRITING MALWARES! I am trying to understand how it can be done, how it works, if it's possible to do on different way, etc.. Do I look like malware writer ? I even don't asked about code, I need just answer, so, PLEASE, you're playing on my nerves everytime I write something about things like this.
typedef
Because I am not writing malwares, I don't get anything useful from them.
and 1 more thing, I'm doing it on my VM box.
--
I know how it is done on linux sockets, but I'm just asking, if it's possible to do same on windows but with real ip address but block inbound connections, is that even possible or will work like that ?
--
Thanks to board admin for renaming this topic like nobody will help. Really, thank you.
Post 19 Sep 2011, 10:46
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typedef



Joined: 25 Jul 2010
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typedef
your router of cource blocks(technically drops the connection) that kind of traffic if it finds null bytes. But there still other ways to DDOS a router.
Post 19 Sep 2011, 10:57
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typedef



Joined: 25 Jul 2010
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typedef
SYN flood,...did you check on wkipedia?
Post 19 Sep 2011, 10:58
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Overflowz



Joined: 03 Sep 2010
Posts: 1046
Overflowz
typedef
Yes, I checked it on wikipedia and I know how 3 way handshake works, but I'm trying to do it on Windows, just though that what I said before and interested if it would work like that.
Post 19 Sep 2011, 15:10
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Dex4u



Joined: 08 Feb 2005
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Dex4u
@Overflowz, I have read your post and still do not know what your trying to do.
Yes we all know how the 3way hand shake works.

But it is not clear at all, what you want to do.
Post 19 Sep 2011, 17:34
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Overflowz



Joined: 03 Sep 2010
Posts: 1046
Overflowz
Dex4u
I'll try explain further..
3 way handshake vulnerability = Send packet with spoofed ip address, then server tries to respond back the answer on spoofed IP adress which doesn't exist and waits for it to be reached. a lot of traffics like this will cause server to stop working propertly, right ?
Now Windows style, what I'm trying.
When I'll send packet to server, with my real ip address, it will send me the answer - OK. But what if I'll block inbound connection from that server ? I mean, when I'll send some packets to server, when server will try to send me back answer, it will fail because I have blocked his IP on inbound connection. I don't know how to explain better.. Sorry for my English.
Post 19 Sep 2011, 20:27
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typedef



Joined: 25 Jul 2010
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typedef
Overflowz wrote:
Sorry for my English.

It's ok dude, maybe you can use images Wink

Like this one

Image
Post 20 Sep 2011, 01:04
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Overflowz



Joined: 03 Sep 2010
Posts: 1046
Overflowz
typedef
Sorry, not registered on that host. Can't see the image.
Post 20 Sep 2011, 10:20
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Dex4u



Joined: 08 Feb 2005
Posts: 1601
Location: web
Dex4u
typedef wrote:
Overflowz wrote:
Sorry for my English.

It's ok dude, maybe you can use images Wink

Like this one

Image

If you do what your image shows typedef, it will still return to your IP, as the router stick your real IP, as it re placers the one you put, with the real one.

@Overflowz, can you not just flush the NAT ?.
Post 20 Sep 2011, 18:30
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typedef



Joined: 25 Jul 2010
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typedef
@Dex4u That is why I use botnets.

PS: the target's router will parse the packet to the target machine giving it the forged source IP. The gateway can reach you back but not the target. Wink
Post 20 Sep 2011, 19:04
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Overflowz



Joined: 03 Sep 2010
Posts: 1046
Overflowz
Never mind, I get it what I was thinking. It will fail. Thanks for replies.
Post 20 Sep 2011, 19:32
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typedef



Joined: 25 Jul 2010
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typedef
Overflowz wrote:
It will fail.

Did you try at all ?
Don't let them beat you down broah. Wink
Post 20 Sep 2011, 19:35
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Overflowz



Joined: 03 Sep 2010
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Overflowz
typedef
It will fail because someone would try it before me. I'm not professional programmer or "idea creator". I'd better do some useful, like learn some HLL language (perl and C) and more about Overflows Very Happy
Post 20 Sep 2011, 19:58
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typedef



Joined: 25 Jul 2010
Posts: 2913
Location: 0x77760000
typedef
@Overflowz
Well, do what suits you best. Very Happy
Post 20 Sep 2011, 20:07
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