GRAY-WORLD.NET TEAM
Unusual firewall bypassing techniques, network and computer security.

Either the well was very deep, or she fell very slowly, for she had plenty of time as she went down to look about her and to wonder what was going to happen next. First, she tried to look down and make out what she was coming to, but it was too dark to see anything; then she looked at the sides of the well, and noticed that they were filled with cupboards and book-shelves;

Lewis Carroll "Alice In Wonderland"
Alice
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Wsh, "Web Shell" - remote UNIX/WIN shell, that works via HTTP/HTTPS. The package contains two perl scripts for server and client hosts, one C source code and one Java servlet code for the server host : the client script is for console usage and the server scripts run as CGI/Servlet scripts on the target host.

The client part provides shell-like prompt, encapsulating user commands into HTTP POST requests and sending them to the server part script on the target web server directly or via HTTP proxy server. The server part extracts and executes commands from HTTP post requests and returns STDOUT and STDERR output as HTTP response messages. By default both scripts encode HTTP data with Xor.

The key Web Shell features: SSL support (*), Command line history support (*), File upload/download, Protect server part script usage with secret key inside HTTP message, Data flow Xor encoding, Can work trough HTTP proxy server.

(*) - Additional packages are required on the client host.

Alex Dyatlov, Simon Castro
Current Wsh version: 2.2.2; README , CHANGELOG
Download | md5sum: 4b7f51d186b65bd16e304b507b96613c
http://gray-world.net/projects/wsh/wsh-2.2.2.tar.gz

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Paper : Covert Channel and Tunneling over the HTTP protocol Detection: GW implementation theoretical design.
[read]


Team member's sites: www.infosecwriters.com/ hhworld/ The Hitchhiker's World e-zine


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