chmag-dec2010
DESCRIPTION
Issue 11 – Dec 2010TRANSCRIPT
Issue 2 – Mar 2010 | Page - 1
Issue 11 – Dec2010 | Page - 2
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Android Reverse
Engineering - A
Kick Start
Introduction Recently, the open source mobile operating system ‗Android‘ has a large community of developers writing application programs that extend the functionality of supporting devices. It seems a lot of people are getting crazy about the Android platform these days (everyone is trying to buy an Android phone!). I don‘t have an Android cell phone but still, I did manage to learn a few tricks on this Linux + java clean room engineered platform. In this article I shall explain you with an example, the simple technique of reverse engineering a normal android application.
Setting up the Ground
For the purpose of a demonstration, I have chosen an Android crackme application
published by Deurus and explained the steps involved to legally reverse engineer this application. And our objective (Don‘t get the wrong idea friends!) is to break the licensing scheme of this application. So to begin our journey we first need to get geared up. First we need the Android SDK and then the necessary tools. You can download the necessary files from these locations: Android SDK: http://developer.Android.com/sdk/index.html Smali and baksmali: http://code.google.com/p/smali/ Dex2jar: http://code.google.com/p/dex2jar/ Java decompiler: http://java.decompiler.free.fr/ Deurus Android crackme 03: http://crackmes.de/users/deurus/android_crackme03/
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Getting Started with the Game
Download all these files to your hard disk.
Unzip Android SDK to C:\. Unzip rest of the
tools to C:\ android-sdk-windows\RE. If
everything is in order you can start Android
SDK manager from C:\android-sdk-
windows\. Now it will give you a list of
packages to download and install. We need
to select at least one SDK platform to
continue our quest. After downloading and
installing, we can move on to creating a new
Android Virtual Device.
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After creating AVD, we can start emulation
by selecting AVD and clicking the start
button. Within a few minutes we can see the
emulator booting up and showing the phone
screen. That‘s it! We have our emulator up
and running. Now we need to install the
software (crackme, its legal!) to the
emulator. For that you may have to get
acquainted with Android debug bridge
(adb). Installing an apk file is pretty simple;
all you have to do is to run two commands
from the Android SDK directory/tools.
After the installation you can see the
crackme icon from application menu.
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Now run the crackme by clicking on it. If
everything went as expected you will see the
crackme application on the screen.
Now let‘s try to play with it a bit, pressing
the check button with no inputs pops a
message 'Min 4 chars', and if the check
button is pressed with a proper name it
pops up a message 'Bad boy'. Do remember
these strings because we will be using them
as our search keys when we deassemble the
apk (actually the dex) files. Also note that
we have two hardware ids and we need to
find out what those exactly mean.
Now for real Reverse Engineering
As our crackme is up and running in the
emulator, we can now move on to the
reversing part. If you have read the apk file
format, you can somewhat visualize it as an
extended JAR file which essentially is a zip
file. Now you can change the crackme file
name from „Crackme03.apk‟ to
‗Crackme03.zip‟ and decompress it to any
folder.
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Now the interesting file for us is the
‗classes.dex‘, which contains the compiled
virtual machine (vm) codes. We are now
going to deassemble the dex file with
baksmali. The commands are pretty
simple as mentioned in the screen shots
below.
If everything worked fine, we will have a
folder structure similar to Java packages.
Interesting .smali files are located at
'\com\example\helloandroid'. Open all
the .smali files into your favorite text
editor(I use Notepad++).
If you have never done anything related to
reverse engineering/esoteric
programming/assembly(IL) programming,
don‘t start sweating. We have just opened a
disassembled dex file. Next, if you are
thinking that how on earth can someone
find the correct location of a checking
function, Well I hope you remember those
pop up strings I told earlier. Yeah, 'Min 4
chars' and 'Bad boy'. It is time to use
those strings as our search keys. After
searching the‘ Min 4 chars‘ in all the opened
.smali files, we will find a hit in the file
HelloAndroid$2.smali, quite specifically
line 130.
Our aim is now to understand the serial checking function and write a keygen for it. For which we have to know all the dalvik opcodes that are used here. You can visit this page (http://pallergabor.uw.hu/androidblog/dalvik_opcodes.html) to understand the opcodes and after that you can convert the disassembled code to much higher language constructs. Here, I will provide a brief code snippet which actually implements the algorithm. The two hardware ids used are the IMEI and the sim serial number.
01 //Read name from text box 02 const v23, 0x7f050004 03 invoke-virtual/range {v22 .. v23}, Lcom/example/helloandroid/HelloAndroid;->findViewById(I)Landroid/view/View; 04 move-result-object v9 05 06 //Read serial from text box 07 const v23, 0x7f050006 08 invoke-virtual/range {v22 .. v23}, Lcom/example/helloandroid/HelloAndroid;->findViewById(I)Landroid/view/View; 09 move-result-object v21 10 11 //Checking whether the name is of length greater than 4 12 const/16 v22, 0x4 13 move v0, v11 14 move/from16 v1, v22 15 if-ge v0, v1, :cond_51 16 17 //Popup showing Min 4 chars 18 const-string v23, "Min 4 chars" 19 const/16 v24, 0x1 20 .line 86
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21 invoke-static/range {v22 .. v24}, Landroid/widget/Toast;->makeText(Landroid/content/Context;Ljava/lang/CharSequence;I)Landroid/widget/Toast; 22 move-result-object v13 23 .line 88 24 .local v13, notificacionToast:Landroid/widget/Toast; 25 invoke-virtual {v13}, Landroid/widget/Toast;->show()V 26 27 //There is a little exception trick to make integer string from username 28 //It converts aaaa to 97979797 which is ascii equivalent 29 invoke-virtual {v10, v5}, Ljava/lang/String;->charAt(I)C 30 move-result v3 31 32 //Getting first 5 chars from ascii converted name 33 const/16 v22, 0x0 34 const/16 v23, 0x5 35 move-object v0, v12 36 move/from16 v1, v22 37 move/from16 v2, v23 38 invoke-virtual {v0, v1, v2}, Ljava/lang/String;->substring(II)Ljava/lang/String; 39 40 //Converting it into integer and xoring with 0x6B016 - Serial part 1 41 invoke-static {v12}, Ljava/lang/Integer;->parseInt(Ljava/lang/String;)I 42 move-result v22 43 const v23, 0x6b016 44 xor-int v22, v22, v23 45 46 //Getting IMEI from TelephonyManager 47 //http://developer.Android.com/reference/Android/telephony/TelephonyManager.html 48 invoke-virtual {v8}, Landroid/telephony/TelephonyManager;->getDeviceId()Ljava/lang/String; 49 move-result-object v6 50 .line 102 51 .local v6, imei2:Ljava/lang/String; 52
53 //Getting sim serial 54 invoke-virtual {v8}, Landroid/telephony/TelephonyManager;->getSimSerialNumber()Ljava/lang/String; 55 move-result-object v16 56 .line 103 57 .local v16, simsn:Ljava/lang/String; 58 59 //Getting first 6 chars from IMEI, and similarly from sim serial (IMEI.Substring(0,6) will be used as Serial part 3) 60 const/16 v22, 0x0 61 const/16 v23, 0x6 62 move-object v0, v6 63 move/from16 v1, v22 64 move/from16 v2, v23 65 invoke-virtual {v0, v1, v2}, Ljava/lang/String;->substring(II)Ljava/lang/String; 66 67 //Converting them to integer and xoring - Serial part2 68 invoke-static/range {v19 .. v19}, Ljava/lang/Integer;->parseInt(Ljava/lang/String;)I 69 move-result v22 70 invoke-static/range {v20 .. v20}, Ljava/lang/Integer;->parseInt(Ljava/lang/String;)I 71 move-result v23 72 xor-int v22, v22, v23 73 74 //Making a new StringBuilder object and formatting the string to part1-part2-part3 75 new-instance v22, Ljava/lang/StringBuilder; 76 invoke-static {v12}, Ljava/lang/String;->valueOf(Ljava/lang/Object;)Ljava/lang/String; 77 move-result-object v23 78 invoke-direct/range {v22 .. v23}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V 79 const-string v23, "-" 80 invoke-virtual/range {v22 .. v23}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder; 81 move-result-object v22 82 invoke-static/range {v17 .. v18},
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Ljava/lang/String;->valueOf(J)Ljava/lang/String; 83 move-result-object v23 84 invoke-virtual/range {v22 .. v23}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder; 85 move-result-object v22 86 const-string v23, "-" 87 invoke-virtual/range {v22 .. v23}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder; 88 move-result-object v22 89 move-object/from16 v0, v22 90 move-object/from16 v1, v19 91 invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder; 92 move-result-object v22 93 94 //Checking whether user entered serial and program made serials are equal. 95 invoke-virtual {v14, v15}, Ljava/lang/String;->equals(Ljava/lang/Object;) As you can see, the algorithm is pretty straight forward. It is using name and two hardware ids as input and doing some operations on them to make a serial. We can quite easily recode it in any programming language that we prefer to make it as a keygen. Anyways, I am not posting any keygen sources as it will spoil the whole phun!
Decoding the Algorithm
A demonstrative serial calculation routine
is given below:
Name: aaaaa
HW ID1: 0000000000000000
HW ID2: 89014103211118510720
Here are stepwise instructions on
generating final serial number
At first 'aaaaa' will be converted to
'9797979797', from which we will
take first 5 letters and convert it into
integer 97979
This will be ‗xor‘ed with 0x6B016
resulting 511661 and this will be the
first part of serial.
For the second part, we will take the
first 6 letters from HW ID1 and HW
ID2, convert them to integer and
xor, resulting 000000^890141 =
890141.
For the third part we will use the
first 6 characters from HW ID1.
Formatting with the specified
delimiter the serial will become
'511661-890141-000000'.
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Final Verification of Reversing
Now let us put the same magic number into
our Crackme application.
Bingo! Everything worked as expected.
Now, for all those who think it is pretty hard
to read all those deassembled instructions
and manually converting them to higher
language constructs, there are other
options. As dalvik is based on the design of
Java, it is also susceptible to decompilation.
There is no decompiler available at this
moment, but there is a hope.
For now we can use another utility which
converts dex files to jar files so that we can
use Java decompilers to see much more
abstracted code. From the starting of this
article you may have noticed a tool dex2jar.
You can use the dex2jar to convert
classes.dex to classes.dex.dex2jar.jar.
Open it in a Java decompiler and you can
see much better output than dalvik
disassembly. Please note that dex2jar is
still in a development phase and the output
you get could be meaningless in many
places. This should be used only to get a
quick understanding of all the functions.
Conclusion
In this introductory article, I explained reversing of an Android application using the emulator and all available tools in sequence with pictorial elaborative steps. It is mainly based to set up your ground for further reversing work on Android Platform. Well, that‘s it! We have analyzed an Android program and defeated its protection. Cheerio!
Dhanesh k
Dhanesh is a software engineer
specialized in .NET programming. In
his spare time he works on Win32
reversing and malware analysis.
Issue 11 – Dec2010 | Page - 11
Android Security Apps
Android is creating some (a lot actually!)
buzz all over with all its awesome user
friendly features and apps. Millions of
applications and games are available to
choose from.
Our phones have all sorts of personal data –
messages, photos, etc. At some point these
apps access your data. And as we all know
data=money, so let‘s have a look at some
apps that will help you protect your data
and privacy.
Malware and Theft Protection
Apps
Here are few apps that will help you protect
your data, privacy.
1. Lookout Mobile Security
This is one of the good apps protecting your
phone from viruses, data loss, etc. This app
provides anti-virus protection, malware and
spyware blocking functions. It also scans
every app installed on your phone thus
preventing you from using those apps in
future.
If you loose your phone, you can track your
phone‘s location via locate phone on map
feature. It basically sounds an alarm from
the device itself when asked to track it.
Another good feature of this app is that it
allows you to backup and restore your data,
like – contact, photos, text messages and e-
mails etc.
All in one package huh! And guess what? It
is a freeware!
You can get it here -
https://www.mylookout.com/
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2. WaveSecure
Another good all-in-one app that protects
your data and privacy. It can track the
location of your phone incase its stolen or
misplaced by you. It basically sends a sms
alert to a pre-defined contact. It has this
amazing ability to locate, lock and wipe a
device remotely. Yes! you can WIPE your
data remotely if your phone is not found.
Though it does not provide anti-virus
protection, it does provide backup and
restore facility.
Recently, WaveSecure was acquired by
McAfee.
URL: -
https://www.wavesecure.com/wavesecure/
android.aspx
3. Protector
It enables users to password protect any
application stored on their phone. This
security app takes it one step further by
enabling users to even password protect any
feature of an existing app on your phone.
Many users will experience the benefits of
this security app.
The Protector allows users to password
protect various Android apps including
Chat, Notepad, Calendar, Photos, Setting,
Email, Gmail and even their SMS inbox.
One negative aspect of this app is that it
does not provide a pin recovery service. So it
can create a lot of problems if you forget or
lose your pin code.
And one more good thing – its FREE!!
URL: - http://www.android-password.com/
4. Norton Mobile Security
This app has got almost same features as
that of apps mentioned above. Like tracking,
remote lock-and-wipe ability, anti-virus etc.
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In addition to this, you can block or control
incoming calls and sms of some person from
your call log.
Again, its free!
URL: - http://us.norton.com/mobile-
security/
5. SMobile Security Shield
This app comes in two flavors – one with
Anti-Virus and other with Parental Control.
This is a power packed app with some great
features. Features like –
Anti-Virus
Anti-spam. This blocks calls and
messages from annoying person(s).
Firewall. Helps in keeping malicious
programs at bay.
Backup and restore ability.
Lock-and-wipe ability.
GPS to locate phone when stolen.
And also parental controls like text
messages and email monitoring,
child locator, etc.
Though this is a not a free app but its worth
it.
URL: - http://www.smobilesystems.com/
Few more app you can use – Smobile
AntiTheft, aFirewall.
I hope this will help you decide which app to
use and protect your data.
Be Safe
Saurabh Shah
http://twitter.com/saurabhshah
Saurabh Shah has done Masters in
Computer Science from Pune university.
He says that he would love to try to do
experiments on Android phone and trying
to learn some apps, security is very
important for Android these days before
someone steals or breaks you stuff on
android.
Working as a FrontEnd Web Developer
(@ cloudaccess.net), majorly in Joomla.
Issue 11 – Dec2010 | Page - 14
Android Application Safety
Android is a Linux based mobile "smartphone" operating system. Android(tm) was designed with security in mind, and almost all of the important functions of the system are protected by layers of defense. Applications installed on the system declare what features and functions it needs or wish to access via a Manifest - a declaration written by the developer of the app, that cannot be changed during the lifetime of the application package installed on the Android(tm) device. Newer versions of the app can modify the Manifest, but when updating the app, the system requests the user to allow the change. The Manifest contains important information about the app - but Permissions are the most important part by far. Permissions are a declaration about what sensitive data and parts of the system are going to be accessed by the app being
installed. Some examples of android permissions : ACCESS_FINE_LOCATION - access Gps location. CALL_PHONE - place calls. CAMERA - access the camera. SEND_SMS - send sms messages. INTERNET - access the web. the full list is avialable at : http://developer.android.com/reference/android/Manifest.permission.html
Issue 11 – Dec2010 | Page - 15
When installing an app the market or other installer asks the user to confirm the permissions the app requests. Reading these carefully and understaing the implications of the permissions can help the user avoid many of the dangers of using a smartphone. for instance: SEND_SMS permission can allow the app to send SMS from the phone to premium numbers, thus deducting money from the user. MAKE_CALLS can allow the app to make phone calls and deducts money in the same way. ACCESS_FINE_LOCATION + INTERNET can allow the app to track the user location, and sell the info to advertizing companies for targeted ads in the best case scenario and in the worst actively snoop on the user. READ_SMS, READ_CALL_LOG, READ_LOGS - these permissions can be used to access the user calls, sms and more. Combined with INTERNET they can be used to snoop on the user, or steal his data. the gsf.READ_GSERVICES is especially dangerous - as it is the basic permission the
"angry birds bonus level" proof of concept used by the malware to install more apps silently in the background. Google has already fixed the problem, but the issue can still affect older phones - Never install an apps that requests this permission. A notable exception to this rule is the Appbrain app. However - apps that needs the permissions for their work by reputable developers can be installed with no problem : Chompsms need access to SEND_SMS to work, Facebook apps needs access to the internet, an alternative dialer program can be allowed to dial the phone. When an app that looks like a game, or a video player asks for SEND_SMS then you should not install it and notify someone about it - Us at DroidSecurity.com or google, or the market comments. Remember that the moblie phone is the closest thing to you after your family, it goes with you everywhere and it contains most of your personal, private and revealing information! always check the permissions before installing a new app or a game. Have fun with your Android phones!
Oren barAd
Oren barAd, working at Droidsecurity for 1 year as a Developer and Researcher focusing on mobile security. part time hacker, and hardware/gadget enthusiast.
Issue 11 – Dec2010 | Page - 16
Electronic contracts & the Indian law
Chapter IV of the Information Technology
Act, 2000 (amendment of 2008) contains
Sections 10, 11, 12 and 13 which talks about
Legal Recognition to Electronic Contracts,
Attribution, Acknowledgment and Dispatch
of Electronic Records.
Section 10A of the IT Act, 2000 provides
that, a communication or contract shouldn‘t
be denied or declared void merely because
it‘s in electronic form. i.e. Every electronic
contract has legal recognition same as
traditional paper based contract.
This Section is based on the United
Nation‟s Convention on the use of
Electronic Communications in
International Contracts.
Section 11:-
“Attribution of electronic records”,
An electronic record shall be attributed to
the originator—
a) if it was sent by the originator
himself;
b) by a person who had the authority to
act on behalf of the originator in
respect of that electronic record; or
c) by an information system
programmed by or on behalf of the
originator to operate automatically.
Issue 11 – Dec2010 | Page - 17
Here, “Originator” means (Sec. 2(1)
(za)):-
―A person who sends, generates, stores or
transmits any electronic message or causes
any electronic message to be sent,
generated, stored or transmitted to any
other person‖
Originator doesn‘t include
“Intermediary”.
Example:-
Vivek uses his yahoo account to send an
email to Rohit.
Here, Vivek is the originator & Yahoo is the
intermediary.
Example:-
Vivek is on vacation. During vacation he has
turned his vacation responder on with the
following message:-
―Thank you for your email. I am on
vacation, will reply your mail as soon I get
back‖.
Here, though Vivek has programmed an
information system to operate automatically
on his behalf. Still Vivek is the ―originator‖
in this case.
Section 12:-
“Acknowledgement of receipt”
(1) Where the originator has not agreed
with the addressee that the
acknowledgment of receipt of
electronic record be given in a
particular form or by a particular
method, an acknowledgment may be
given by—
a) any communication by the
addressee, automated or
otherwise; or
b) any conduct of the addressee,
sufficient to indicate to the
originator that the electronic
record has been received.
Here, “Addressee” means (Sec. 2
(1) (b)):-
―A person who is intended by the
originator to receive the electronic
record but does not include any
intermediary‖.
Example:-
Vivek uses his yahoo account to send
an email to Rohit.
Here, Vivek is originator, Yahoo is
intermediary & Rohit is addressee.
Example:-
Rohit sends an email to Pooja
asking her that he would like to
purchase a car and would like to
know the prices of the cars available
for sale. Pooja in return sends Rohit
Issue 11 – Dec2010 | Page - 18
a catalogue of prices of the cars
available for sale.
Now this action of Pooja is
sufficient to indicate to Rohit (the
originator) that his email (i.e. the
electronic record) has been received
by the addressee (i.e. Pooja).
(2) Where the originator has stipulated
that the electronic record shall be
binding only on receipt of an
acknowledgment of such electronic
record by him, then unless
acknowledgment has been so
received, the electronic record shall
be deemed to have been never sent
by the originator.
(3) Where the originator has not
stipulated that the electronic record
shall be binding only on receipt of
such acknowledgment, and the
acknowledgment has not been
received by the originator within the
specified time or reasonable time,
then the originator may give notice
to the addressee stating that no
acknowledgment has been received
by him and specifying a reasonable
time by which the acknowledgment
must be received by him. Now if no
acknowledgment is received within
the aforesaid time limit he may after
giving notice to the addressee, treat
the electronic record as though it has
never been sent.
Sec. 13:-
Time and place of dispatch and
receipt of electronic record
(1) Save as otherwise agreed to between the
originator and the addressee, the dispatch of
an electronic record occurs when it enters a
computer resource outside the control of the
originator.
Example:-
Pooja composes a message for Rohit. At
exactly 12.00 noon she presses the
―Send‖ button. When she does that the
message leaves her computer and begins
its journey across the Internet. It is now
no longer in Pooja‘s control. The time of
dispatch of this message will be 12.00
noon.
(2) Save as otherwise agreed between the
originator and the addressee, the time of
receipt of an electronic record shall be
determined as follows, namely:—
(a) if the addressee has designated a
computer resource for the purpose
of receiving electronic records,—
(i) receipt occurs at the time when
the electronic record enters the
designated computer resource; or
(ii) if the electronic record is sent to
a computer resource of the
addressee that is not the designated
computer resource, receipt occurs at
Issue 11 – Dec2010 | Page - 19
the time when the electronic record
is retrieved by the addressee;
(b) if the addressee has not designated a
computer resource along with the
specified timings, if any, receipt occurs
when the electronic record enters the
computer resource of the addressee.
(3) Save as otherwise agreed to between the
originator and the addressee, an electronic
record is deemed to be dispatched at the
place where the originator has his place of
business, and is deemed to be received at
the place where the addressee has his place
of business.
(4) The provisions of sub-section (2) shall
apply notwithstanding that the place
where the computer resource is located
may be different from the place where
the electronic record is deemed to have
been received under sub-section (3).
Example:-
Rohit has entered into contract with a US
based company. Company has its server in
Brazil. Even if the company has its mail
server located physically in Brazil, the place
of receipt of the order would be the
company‘s office in USA.
(5) For the purposes of this section,—
(a) if the originator or the addressee
has more than one place of business,
the principal place of business, shall
be the place of business;
(b) if the originator or the addressee
does not have a place of business, his
usual place of residence shall be
deemed to be the place of business;
(c) "usual place of residence", in
relation to a body corporate, means
the place where it is registered.
Sagar Rahukar
Sagar Rahukar, a Law graduate, is
Head(Maharashtra) at Asian
School of Cyber Laws. Sagar
specializes in Cyber Law,
Intellectual Property Law and
Corporate Law. Sagar also teaches
law at numerous educational
institutes and has also trained
officials from various law
enforcement agencies.
Issue 11 – Dec2010 | Page - 20
Tethering your android
Introduction Frankly this issue of ―Command Line Gyan‖
does not have as much flesh as previous
issues. But we thought of dedicating this
issue to Android so here we are with a small
article on how to tether your android.
As per wikipedia ―Tethering is the use of a
mobile device with Internet access such as
3G cellular service to serve as an Internet
gateway or access point for other devices.
Other devices may connect to the gateway
via Bluetooth, Wi-Fi or by Universal Serial
Bus (USB) cabling.‖ The connectivity can be
normal GPRS/EDGE or most awaited 3G.
At the same time other device can be other
wi-fi enabled phone/pda, laptop or even
desktop.
For the sake of this article I‘m taking
example of my Samsung android device but
be assured it will be same in all phones
Linux
I have personally tried this trick in
BackTrack4 and Debian5 (lenny) but I‘m
sure it will run similarly on other Linux
distros.
The moment you connect your android over
USB you‘ll be prompted with different
connectivity options on the phone as shown
below.
Issue 11 – Dec2010 | Page - 21
Select ―PC Internet‖ in this (obviously).
Remember exact screen might not appear as
per different models & android version.
Once you select ―PC Internet‖ there will be a
device created in your system. In all my
attempts the device created was USB0.
Make sure you check the exact device
created from dmesg.
Once you get this device/interface created,
all you need to do is seek IP over DHCP for
this interface.
dhclient usb0
Or
dhcpcd usb0
Done sir, your tethered internet is working
on your Linux machine now. Interestingly
android works as a DHCP server and a NAT
device. That‘s really smart.
Windows
Sorry
OK, as far as I have tried & seen, I haven‘t
found a way out in windows to do it via
command line. Yes there are a few apps to
tether the phone, but nothing on command
line.
Although its against the spirit of this section
of the magazine but I‘lls til point out a few
apps to do tethering on Windows
Some of such apps are
1) PDAnet
2) EasyTether
3) Proxoid
Best of luck with GUI in windows
Rohit Srivastwa [email protected]
Issue 2 – Mar 2010 | Page - 1