ClsHack:Computer Security Blog    

CIntruder: bypass captchas

Tuesday, April 10th, 2012

New tools directly from the developers xsser

As we read the official site:

CIntruder is an automatic pentesting tool to bypass captchas.

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[How-To]Bypass CAPTCHA with Python && Tesseract :D

Thursday, January 26th, 2012

The captcha was death for spam bots.
Through the CAPTCHA is possible to make our applications more secure from spammers and bots.

Da wikipedia:

A CAPTCHA is a type of challenge-response test used in computing as an attempt to ensure that the response is generated by a person. The process usually involves one computer (a server) asking a user to complete a simple test which the computer is able to generate and grade. Because other computers are assumed to be unable to solve the CAPTCHA, any user entering a correct solution is presumed to be human. Thus, it is sometimes described as a reverse Turing test, because it is administered by a machine and targeted at a human, in contrast to the standard Turing test that is typically administered by a human and targeted at a machine. A common type of CAPTCHA requires the user to type letters or digits from a distorted image that appears on the screen.

An example:

Today we see how to bypass these protections :D

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Metasploit && shellcodeexec bypassing any AntiVirus

Sunday, January 22nd, 2012

Bernard Damel Blog has found a new way to bypass any antivirus.
shellcodeexec is a script available source for windows and linux.

The characteristics of shellcodeexec are the following:

  • Can be compiled and works on POSIX (Linux/Unices) and Windows systems.
  • Can be compiled and works on 32-bit and 64-bit architectures.
  • As far as I know, no AV detect it as malicious.
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Ptunnel: ICMP tunnel for bypass restricted on hotspot or other

Friday, June 3rd, 2011

Ptunnel ( http://www.cs.uit.no/ ~ daniels / PingTunnel ) is a tool that allows you to give you freedom in those networks where there are blocks, as hot spots or at a hotel where you can connect it in front of you but you see a login page, and you have to pay to surf .-.
It is not enough because you pay the hotel charge you must also have internet .-.

Of course ptunnel works badly configured networks.
To use ptunnel should not be blocking traffic with a simple ping.
For example, if typing:
ping clshack.it
it returns the address of the web server and can manage to ping so if you have an answer , you will not have problems using ptunnel.

Ptunnel is an application that allows to establish TCP connections to a remote host using the protocol
ICMP as the underlying protocol, and thus circumvent the limitations on the various firewall.

Now the famous ssh tunnel is blocked by most firewalls and tunnels that use ICMP echo request and reply (ping requests/replies) are not well known.
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Generate MegaUpload Premium Link with MegauPremium

Tuesday, June 30th, 2009

MegaPremium is a new web service that allows us to generate free.

To get the premium link just enter the URL of the download and go.
We will get the chance to download from MegaUpload premium users as if we were.
this leads to a higher speed of the download and avoid queues.


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