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thegubble

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    Australia
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    Computers, Electronics, Girls and Computers

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  1. Well, a bit of fun! Firstly, if it is GSM, i can't help you at all. What you need to do is find out more about this sign (as in the electronics). To start you will need the name of the company that makes the sign, and the model number of the sign. Then just use those trusty social engineering skills to call up and say 'blah blah blah... i was looking at installing one of your signs in my carpark/store/secret underground bunker, and i was wondering how you update the message on it... blah, blah, blah... well i like the look of the *model number here* that is installed in *location here* and would be very interested in getting some more info/datasheets/wireless communication specification sheets, on that model.' Once this is done you should know how it communicates. Then you need a way to use this information (everything below this line is purely theoretical :P) If it is blue tooth: connect, have some fun, brute force the passkey, etc. If it uses GSM: i can't help, been interested in GSM sniffing but sadly know very little about it. If it uses a standard wireless communication frequency: 1. Find what sort of wireless chip/receiver/transceiver it has (either from the data sheets obtained earlier, or by taking a screwdriver to it at midnight 2. Purchase two matching receiver and a single transmitter (or more if you think you may destroy it) 3. Experiment with sending and receiving data to and from your choice of microcontoller (I prefer AVR) 4. Using the successful wireless link you created in step 3, use the second wireless receiver to attempt to sniff the data as it passes across 5. Find out when the sign will be updated and sniff the wireless link (and pray it works) 6. Take the data collected home, reverse engineer a protocol specification for it and reprogram your little transmitter. 7. Change the sign to what ever you like as you drive past (or walk) And you have just pwned a sign. Just a quick thought; because it has a 6" antenna, it sounds as if it is a RF wireless link (possibly 2.4GHz ZigBee) I'd be very interested in helping you research this further, send me a PM if you are interested
  2. Ok, Sorry to double post, but this post is slightly large. Down to business: I wrote this quickly as a proof of concept application, it has a 7mb memory footprint so it needs a lot of optimization. What it does: Starts a program that sits in the SysTray. By right clicking on it you can choose between using the Task Manager or Process Explorer (i just had my copy sitting in C:\) Then, when the process taskmgr.exe is detected, it launches process explorer and kills taskmgr (if use process explorer is selected). There is a few second lag between the Ctrl-Alt-Del key press and process explorer starting up, but as i said, this is only a proof of concept application. Attached to this post is the complete source code (in all its messiness). A pre-compiled version can be found in "TaskDude\TaskDude\bin\Release" TaskDude.rar I'll add comments to it now quickly before i upload, just so you can see what is happening. Oh, it's written in C#, Visual Studio 2005.
  3. Just Kill Ctrl-Alt-Del and grab a C++ keyhook example and add in 'on crtlaltdel run program.exe' I'll grab links. EDIT: Ok, i've some research, and i'll whip up a quick application in C#. To kill Ctrl-Alt-Del, just set the following registry key: Path: Software\Microsoft\Windows\CurrentVersion\Policies\System Key: DisableTaskMgr Value: 1 EDIT(2): Ok, while the registry key will disable the task manager, it causes an annoying 'this has been disabled' popup.
  4. Moonlit has a good point here. The thing is, would you be bothered to do it? More to the point, do you have any idea of the knowledge you would need to do this. I think moonlit just summarizes what everyone is thinking. There are plenty of distro's out there, If you do feel passionate about embarking on this project, may i recommend: http://www.linuxfromscratch.org/
  5. Well, you have a few opens here: 1: Place a password protected file on the webserver that runs the shell command "shutdown -s -f", that way when your done, you just open the page, type in the password, and the computer shuts down. (Make sure you have the 'f' to force shutdown) 2: This is a project i had running a while ago, using a spare mobile phone, an AVR ATMega88 microcontroller, and 30mins of spare time. You hook the phone up to the microcontroller and setup an interrupt that triggers when the phone receives a message. It then pulls the message off the phone via serial and reads it. In my setup i had 3 commands: "ON" (Turns the computer on), "OFF" (Turns the computer off), "KILL" (Holds down the power button and does a force shutdown). By attaching the microcontroler to the power jumpers on the motherboard, i could emulate pressing the power button. This was great because i could turn on my computer when i needed it, and then shut it down when i was done. I'll try and dig up the schematics for this. 3: Cron/AT/Taskmanager There is a windows version of cron floating around the forums somewhere, try and find it. The only downside to this method is that the computer is on all the time until the task fires, and as said above, what if the task does not fire. 4: Buy some web-hosting somewhere else and place the proxy there. Good luck!
  6. I don't do much C any more, but as it is similar to C#, i can help a bit. You define play game as: void playGame(char*); but when you call it, you don't give the function argument: playGame (); So all you need is to have a char* variable as an argument, and it should work.
  7. You could go all hardcore and program a PIC or AVR to act as the computer. This way, all you would need is 2-4 surface mount chips (allowing for it to be as small as a 9v battery, possibly smaller) and it could be powered off USB.... ok, i'm going to try it, and fail. But i like the idea.
  8. Just use a keyhook to look for the print screen button, then take a screen shot, save it to a local directory, then you have 2 options: 1. Run a local web server, and just copy it there 2. Automate a FTP upload of the file Easy, then just set the clipboard to have the url.
  9. For every new programing language i learn, as a test to myself, i write a simple game of TicTacToe. I recently decided it was time to brush up on my batch script skills, so wrote TicTacToe in batch. While the code is not the neatest, and can probably be optimized a lot, it gave me great experience in writing this small app. Anyways. Less talk, more code. http://www.fileshack.us/get_file.php?id=47...e=TicTacToe.bat It uses basic batch commands, echo, if, set, cls, etc.... and no other executable files are needed! No bad stuff, no "format C:", have a look, and please, leave feedback! (342 Lines, MD5 Checksum: 54e81caaf2cf12a93b5e5fe29f13b8fe|TicTacToe.bat (Generated By FileCheckMD5))
  10. OK, I'm in. Looks cool. Time to get a new box of hax0r flakes!
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