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I saw this interesting article on
www.winxpnews.com
In an issue of the newsletter published last July, we discussed the new "smart phones" and cell phone/handheld computer combos that have been creeping into the market over the last few years. Back then, many of you wrote to say that you were already frustrated by the complexity of modern mobile phones, but others said they were looking forward to an affordable, functional "all in one" device that combines phone, personal computer/PDA, TV, MP3 player and more.
One aspect of the computerized phone that didn't come up was the inevitable issue of security. As phones become repositories of information, they also become more attractive targets to hackers. A phone hacker could crash the operating system and make your phone unusable. Even worse, a hacker might be able to access names and phone numbers, calendar appointments, notes and other data you store using the phone's PDA functions, listen your conversations, or make long distance calls charged to your number. Ouch! They do this by intercepting signals that transmit the phone's ID numbers and then "cloning" the phone. What about those pictures you take with your camera-equipped phone? Would you like for a stranger to access and peruse them?
None of this is new or limited to mobile phones, of course. In fact, one of the earliest forms of hacking involved hacking the telephone company networks (those who specialized in getting free long distance service and otherwise manipulating the phone equipment were called phreakers). But new wireless technologies make it even easier.
There have already been viruses and worms created to exploit the mobile phone operating systems. Last summer, security experts discovered a worm called Cabir, which was transmitted through the Symbian OS that runs on Nokia, Motorola, Panasonic and other popular brand cell phones. In November, a Trojan called Skulls was discovered; it disabled the smart phone functions on Symbian based handsets. As if we didn't have enough to worry about, next we'll be installing anti-virus software on our phones. Can the Fone Firewall be far behind?
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Posted: 2004-12-09 18:07:32
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It's really easy to make a Trojan Horse for Symbian devices. They are all computers at last.
But the problem is about GPRS backgruound. Everytime when you downloaded a data and stop to download data over GPRS your IP Address is changing. That makes nearly imposible to reach a Trojan Horse in your phone even there is an active one.
But if a Trojan Horse can send contuniously data maybe your IP address won't change(I have to try this, I'm not sure), so that makes your phone vulnerable to reach from outside.
But also a worm or a trojan horse can send all your calendar and phonebook data to a specific server in seconds. This can be the worst one. Also the program can delete them permenantly. That means we have to backup every day.
I don't think virusus can cause biger problems than data lose. Not yet. Because of the ROM drive in the Symbian phones(and because of the only way to change ROM data is using Hardware devices) they can't change main system files.
Now, you can start to think about, every app. you are going to install.
Thanks for reading.
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Posted: 2004-12-09 18:45:04
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IP address is not a problem.. you can configure the trojan to send the IP whenever there is a new connection via sms to a specific number!
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Posted: 2004-12-09 19:24:57
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@msa
Even if you don't disconnect from GPRS, every time when you get data over GPRS your IP is changing.
That means evey time when Trojan Horse send a data, after send process finish, IP address will change.
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Posted: 2004-12-10 19:16:45
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fine then, it can be set to send the IP whenever its changed
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Posted: 2004-12-10 20:15:58
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Hey man. Every time after program send the IP, even GPRS connections stands still, phone and GPRS network connection is completely stopping, and the IP which phone uses sending back to IP pool, where phone's given one.
Every time when your phone stop sending or receiving data, your IP is disapearing.
SO, that means when your Holy Trojan Horse send last IP, after send process your IP will change automatically.
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Posted: 2004-12-11 12:35:10
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All this sounds interesting, this changing IP thing. Does this mean that GPRS connections are more secure?
Appreciate more enlightenment. Thanks.
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Posted: 2004-12-11 16:06:00
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It depends on which security you're asking for.
It's more secure for your mobile phone. In the other hand, it's same as a normal Net connection. Actually, I haven't follow how your mobile phone sending information over GPRS. I mean normally nothing is couding, because it's faster.
I can't say it's more secure than broadband.
Try this site from your mobile phone: "www.whatismyip.com"
Every time you refresh site, IP address will change.
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Posted: 2004-12-11 16:25:55
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Quote:
On 2004-12-11 16:25:55, offlinerus wrote:
Try this site from your mobile phone: "www.whatismyip.com"
Every time you refresh site, IP address will change.
I have refreshed that site 4 or 5 times & my IP reads the same. Didnt change once. I am on a GPRS WAP account. Any insight into that? Thanks.
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Posted: 2004-12-11 20:20:00
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I can't say for sure, but I should imagine that if you connect via GPRS then your IP address will remain the same until you disconnect and re-connect, in much the same way as dial-up internet through a computer works.
If your phone had to acquire an IP address from the service provider each time it requests a wap page, then it would be even more painfully slow than mobile internet already is!
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Posted: 2004-12-11 20:29:43
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