1) I was admin of 50+ drafting room computers.
I installed my own security software. And it messed around with dos a lot. it hacked IO.SYS, CONFIG.SYS and command.com making changes so it loaded alternative config files. Had my own program launcher to load programs/windows with tight serurity. It had its own command prompt and windows lick gui software.
At the end of the school year the computer science guy decided to have all the computers reloaded with a newer version of autocad without going threw me (some other punk was helping out and he was out for revenge as I uninstalled his previous security software), anyways to cut a long story short, they were really trying hard to find out what I did to the computers. They ended up having to format all the computers. Serves them right for trying to bypass me since it was my job not theirs
😉
2) 1 year later.
back in the good old days of windows 3.11. I was using a pc everyday at school for developing. Improoving my software etc.
But one day the admin decided to install security software on the harddrive.(it was my arch nemesis form previous year) It locked down windows and dos, and I could not get conttrol of the computer. But I still had some of my programs I developed on the pc.
Command prompt still worked. Had to find a work around to get it to load. But command prompt was locked down so I could not run software or rename files. But found a hack, instead of running 'attrib' i ran /dos/attrib and the command worked fine. But still I was not able to edit config files as they were locked (file sharing). And my program could not hack IS.SYS and MSDOS.SYS, since the program protects those files too
🙁.
to Cut a long story short....
What I ended up doing, was hex edited the hardrive (I had no file access so I could not edit the file directly) and changed the contents of where config.sys was located to disable the device driver from loading. After reboot I had full control of the system. Used ctrl-C to bypass autoexec.bat form loading the locked down windows.Changed windows ini files to disable restrictions set by foolproof.
I hacked IO.SYS and MSDOS.SYS and made it so it used alternative config files to load dos so they could not lock down the system again. I thought it was best to use alternative names as other people could change config.sys/autoexec.bat all they want and not be able to gain control.(as they didnt know what files to change).
After I did some finishing up work so I could enable somewhat security so the admin didn't know the computer was compremised and also prevent others from serewing up the pc.
Servies them right for trying to mess me a second year in a row!
After that the computer science guy and that stupid terd (my nemises) left me alone, and decided the computer was in better hands
So I had control of the PC until I graduated. ANd continued to do my developement.
A security software is only good if there are no tools on the PC to use a weapons!!!!
Basically I fooled foolproof..... what a joke...
For as long as I used the PC, the computer never was messed up, so I am cluseless why they decided to install security software on it. It was not needed. ANd they deserved to get their butts kicked.