'ANTIVIRUS'-like app?
This is an archived, read-only copy of the United-TI subforum , including posts and topic from May 2003 to April 2012. If you would like to discuss any of the topics in this forum, you can visit Cemetech's Your Projects subforum. Some of these topics may also be directly-linked to active Cemetech topics. If you are a Cemetech member with a linked United-TI account, you can link United-TI topics here with your current Cemetech topics.

This forum is locked: you cannot post, reply to, or edit topics. Project Ideas/Start New Projects => Your Projects
'ANTIVIRUS'-like app?
United-TI Archives -> Project Ideas/Start New Projects
 
    » Goto page 1, 2  Next
» View previous topic :: View next topic  
Author Message
Alfons Van Hees


Newbie


Joined: 10 Jun 2003
Posts: 5
Posted: 10 Jun 2003 11:24:08 am    Post subject:
I wondered if it's possible to make an antivirus app, which dedects reset routines and other screw-up-your-calculator-routines.
Probably it's possible, but there are so many ways to mess up your calculator!
Enyone has any idea?
Back to top
62 52 53 53
Formerly known as 62 52 53 53


Active Member


Joined: 30 May 2003
Posts: 607
Posted: 10 Jun 2003 07:29:21 pm    Post subject:
Yes and no. One could potentially set an interrupt to check the validity of certain things(and make them valid if necessary), but there is no way to prevent it from being disabled. Trying to determine if a program was a virus would be almost impossible.
Back to top
Adm.Wiggin
aka Tianon


Know-It-All


Joined: 02 Jun 2003
Posts: 1874
Posted: 10 Jun 2003 07:35:31 pm    Post subject:
that might work, but wouldnt it also prevent a valid reset from the Mem menu? i dunno...
Back to top
NETWizz
Byte by bit


Bandwidth Hog


Joined: 20 May 2003
Posts: 2369
Posted: 11 Jun 2003 02:27:09 am    Post subject:
It would never work unless you disable all assembly and applications because there must be thousands of ways to crash a calculator in assembly.

Set the wrong flag, output a value to the wrong port, jump to the wrong mem address, et cetera...

Writing a program like this would be more difficult than makeing a crash proof assembly program!!
Back to top
Adm.Wiggin
aka Tianon


Know-It-All


Joined: 02 Jun 2003
Posts: 1874
Posted: 11 Jun 2003 12:19:57 pm    Post subject:
ya, it would be pretty darn hard... it would have to be a new os! or just an assembly parser, that will check if it is a real assembly command, and if not, DONT EXECUTE IT Very Happy !
Back to top
NETWizz
Byte by bit


Bandwidth Hog


Joined: 20 May 2003
Posts: 2369
Posted: 11 Jun 2003 03:01:42 pm    Post subject:
You cannot check every asm command, so you would need a list of approved an unapproved programs.
Back to top
gorchy


Newbie


Joined: 30 May 2003
Posts: 19
Posted: 11 Jun 2003 03:02:12 pm    Post subject:
do you have so much problems with virus on your calculator???
if your calculator sometimes hang up, you can make a group to back-up your programs, lists et cetera
-2nd + MEM
-Group
-create new group
Back to top
NETWizz
Byte by bit


Bandwidth Hog


Joined: 20 May 2003
Posts: 2369
Posted: 11 Jun 2003 03:34:11 pm    Post subject:
If you are worried about viruses, do not run apps or asm.
Back to top
Adm.Wiggin
aka Tianon


Know-It-All


Joined: 02 Jun 2003
Posts: 1874
Posted: 11 Jun 2003 03:40:23 pm    Post subject:
ya, that could fix it Laughing but that takes all the fun out of the calculator... i sometimes have this problem where my calculator will reset after coming across an error in a basic prog Neutral
Back to top
NETWizz
Byte by bit


Bandwidth Hog


Joined: 20 May 2003
Posts: 2369
Posted: 12 Jun 2003 04:58:06 pm    Post subject:
Go to the assembly section, and read the pinned topic. Near the bottom, I have an attachement entitled EVIL. Evil is an app that kind of crashes and kind of does not crash.

Try Evil.

Now, as for apps never crashing a calculator, I ran MirageOS, and when I exited, my calculator crashed. Also, if you have an SE or even a regular 83p with OS 1.13 or above, basic programs are dangerous to run from the shell.
Back to top
Adm.Wiggin
aka Tianon


Know-It-All


Joined: 02 Jun 2003
Posts: 1874
Posted: 12 Jun 2003 06:29:34 pm    Post subject:
just don't use basic progs in the shell! problem solved! Mirage does crash a little, but i havent had IT crash for quite a while now!
Back to top
NETWizz
Byte by bit


Bandwidth Hog


Joined: 20 May 2003
Posts: 2369
Posted: 14 Jun 2003 04:51:13 am    Post subject:
What you have is a good idea that can be taken from a different perspective.

Maybe you would like to make an app to protect sections of the calculators OS from unauthorized use. e.g. app to protect the mem or school calcs.

Well, actually, I am wrighting XMitOff which is going to do this and more.
Back to top
Pascal


Advanced Newbie


Joined: 24 May 2003
Posts: 76
Posted: 23 Jun 2003 09:11:04 pm    Post subject:
Mirage has crashed on me plenty times. What do you mean by virus, a flaw in the program or a purposfu;; progra that infects the calculator? Both ould be hard or impossible to detect as jbirk said. But it wold be so fun to make that antivitus window show up on startup when you turn on your calculator. Maby Ill make a program lie that jsut for fun. It wont do anything.
Back to top
NETWizz
Byte by bit


Bandwidth Hog


Joined: 20 May 2003
Posts: 2369
Posted: 24 Jun 2003 01:33:35 am    Post subject:
b wrote:
BTW, what time zone is this site in?
Right now its 9 where I live (Warren, its near Detroit.  In Michigan, U.S. for all you foreigners.)

GMT because it is universally accepted.

E.g. all time is is usually referred to as GMT+X or -X
Back to top
Pascal


Advanced Newbie


Joined: 24 May 2003
Posts: 76
Posted: 04 Jul 2003 02:56:46 pm    Post subject:
Hey jbirk, hows your pool?
Back to top
Glen
Prokul Interactive


Advanced Newbie


Joined: 20 May 2003
Posts: 59
Posted: 05 Jul 2003 06:25:30 pm    Post subject:
i dont think that there are real viruses on ti calcs....

some programs crash because they might have some bugs in the program or they are not written well!
Back to top
SniperOfTheNight


Advanced Member


Joined: 24 May 2003
Posts: 260
Posted: 05 Jul 2003 08:04:05 pm    Post subject:
I think the only real "Calc Viruses" are in programs people make. Although, I don't know if anyone could make a virus that would really harm the calc.
Back to top
IntrnalDsK


Member


Joined: 23 Jun 2003
Posts: 103
Posted: 09 Jul 2003 05:10:07 pm    Post subject:
Before you needed a virus scanner, you need some viruses Razz Nobody actually makes viruses and distributes them to people (although I have considered it Neutral ) and crashes, like with mirageos, are not viruses, just bugs.

It would be like making a virus scanner for a cell phone. They just don't have viruses (yet).

Last edited by Guest on 09 Jul 2003 05:20:38 pm; edited 1 time in total
Back to top
Arcane Wizard
`semi-hippie`


Super Elite (Last Title)


Joined: 02 Jun 2003
Posts: 8993
Posted: 10 Jul 2003 08:01:20 am    Post subject:
IDKProgs wrote:
It would be like making a virus scanner for a cell phone. They just don't have viruses (yet).

There's at least one virus for cell phones, I remember it being on the news a while ago.
Back to top
IntrnalDsK


Member


Joined: 23 Jun 2003
Posts: 103
Posted: 12 Jul 2003 06:11:35 pm    Post subject:
already? Confused Faster than I thought Razz
Back to top
Display posts from previous:   
Register to Join the Conversation
Have your own thoughts to add to this or any other topic? Want to ask a question, offer a suggestion, share your own programs and projects, upload a file to the file archives, get help with calculator and computer programming, or simply chat with like-minded coders and tech and calculator enthusiasts via the site-wide AJAX SAX widget? Registration for a free Cemetech account only takes a minute.

» Go to Registration page
'ANTIVIRUS'-like app?
    » Goto page 1, 2  Next
» View previous topic :: View next topic  
Page 1 of 2 » All times are UTC - 5 Hours

 

Advertisement