Android key combinations for quick hacks !
1) Force reboot:
Many times android users face a problem of freezing of mobile phone, In case your android phone is frozen, you can reboot it using an android trick.
Just press Power Button+ Home Key + Volume up button simultaneously.
2) Quick Google Access:
Android phones built primarily for internet, many of android users don’t know that android phones provide a way by which we can access Google search in just a single click. To use this android trick,
Press menu key and hold it for couple of seconds, it will launch the Google search.
3) Reboot Android in safe mode:
As like computers, we can also reboot android phones in safe mode. The latest android jelly bean version provides an option to reboot in safe mode, if something goes wrong.
To reboot your android in safe mode, follow the below given instructions.
*Long press the power button
*Long press on the power off option.
Android phone will show a confirmation message about rebooting it in safe mode, if we reboot android phone in safe mode then all the 3rd party application will be disabled. These applications can again be enabled when we reboot our phone normally. This is a great android utility in case when, one of your 3rd party application is causing trouble for you and you want to hunt it.
4) Unlock android phones by face detection:
This is a cool android trick by which you can unlock your phone by using face detection, In the jelly bean version, android provides a way by which android phone can be unlock using face detection, to make this feature more secure, jelly bean version added another layer of protection in which android phone can be unlocked only when the face is matched as well as we have to blink eyes in order to unlock phone. Blinking eyes tells the android security system that person is live and it’s not an illegal attempt of unlocking using a still image.
To activate this,
Go to Settings > Security > Screen lock > Face unlock.
5) Get detailed information about phone status:
We can get the detailed statistics like phone information, battery information, usage statistics and WiFi information by just dialing *#*#4636#*#*
This is a handy USSD to get the details about battery usage, DNS check, Ping, Application time usage time and so on.
6) Move android apps to SD card:
Its good idea to install android apps in SD card, but what if you installed apps on your phone memory. Don’t worry android phones provide a way by which we can move our apps to SD card. To move apps to SD card, follow these steps:
Go to settings > Application settings > Manage application > Select the application, You will see the option “Move to SD card”.
7) Hard Reset and Factory reset your android phone:
This android trick comes handy at the time of selling an android phone. Android phone can be formatted in two ways
Factory reset
Hard reset
a) Factory reset: In factory reset, your phone is being formatted to factory level. Means all the settings will go by default and all the internal data will be deleted. To factory reset a phone dial *#*#7780#*#*.
b) Hard reset: To hard reset a phone dial *2767*3855#, this will delete all the data (including internal and External SD data) as well as settings of android phone. Don’t try this code for testing purpose, until you are not sure. It will not ask for a confirmation.
8) Context menu in android:
long press on the screen, will show you additional options for customizing android phones. This context menu is somewhat similar to the right click menu of most operating systems.
9) Taking screen shots on android phone:
Android phones offer a great feature by which we can take the screen shot without using any 3rd party application. However the screen shot android tricks vary from one android version to another version.
Press the Home button + power button (This trick work on most android phones.)
For Galaxy Nexus: Power button + volume down button.
For Galaxy Note 2 and S3: Swipe your palm on the screen to take screen shot.
10) Android Version Animation:
This is another cool android trick to play with your android phone.
To use this android trick, Go to settings > about phone > Tab repeatedly on ‘Android version’.
After sometime, the android version will be animated
Friday 5 September 2014
What is a Intrusion Detection System (IDS) ?
Hey everybody, now that we discussed online security its time to identify how your network could be threatened. In order to do so i'm going to start with the Intrusion Detection System or IDS. After this article you should be able to understand what an IDS is, how it works and which types are available.
What is a Intrusion Detection System (IDS)::
A system that tries to identify attempts to hack or break into a computer system or to misuse it. IDSs may monitor packets passing over the network, monitor system files, monitor log files, or set up deception systems that attempt to trap hackers.
Computer systems have become more vulnerable to intrusions than ever. Intrusion Detection is a security technology that allows not only the detection of attacks, but also attempts to provide notification of new attacks unforeseen by other components. Intrusion detection is an important component of a security system, and it complements other security technologies.
How does an IDS work::
While there are several types of IDSs, the most common types work the same. They analyze network traffic and log files for certain patterns. While a firewall will continually block a hacker from connecting to a network, most firewalls never alert an admin.
The admin may notice if s/he checks the access log of the firewall, but that could be weeks or even months after the attack. This is where an IDS comes into play. The attempts to pass through the firewall are logged, and IDS will analyze its log. At some point in the log there will be a large number of request-reject entries. An IDS will flag the events and alert an administrator. The admin can then see what is happening right after or even while the attacks are still taking place. This gives an admin the advantage of being able to analyze the techniques being used, source of attacks, and methods used by the attacker.
Types of intrusion detection systems::
* Host-Based Intrusion Detection System (HIDS): Host-based intrusion detection systems or HIDS are installed as agents on a host. These intrusion detection systems can look into system and application log files to detect any intruder activity.
* Network-Based Intrusion Detection System (NIDS): These IDSs detect attacks by capturing and analyzing network packets. Listening on a network segment or switch, one network-based IDS can monitor the network traffic affecting multiple hosts that are connected to the network segment, thereby protecting those hosts. Network-based IDSs often consist of a set of single-purpose sensors or hosts placed at various points in a network. These units monitor network traffic, performing local analysis of that traffic and reporting attacks to a central management console.
Things to consider (important!!)
* Signatures: Signature is the pattern that you look for inside a data packet. A signature is used to detect one or multiple types of attacks. For example, the presence of “scripts/iisadmin” in a packet going to your web server may indicate an intruder activity. Signatures may be present in different parts of a data packet depending upon the nature of the attack.
* Alerts: Alerts are any sort of user notification of an intruder activity. When an IDS detects an intruder, it has to inform security administrator about this using alerts. Alerts may be in the form of pop-up windows, logging to a console, sending e-mail and so on. Alerts are also stored in log files or databases where they can be viewed later on by security experts.
* Logs: The log messages are usually saved in file.Log messages can be saved either in text or binary format.
* False Alarms: False alarms are alerts generated due to an indication that is not an intruder activity. E.g. misconfigured internal hosts may sometimes broadcast messages that trigger a rule resulting in generation of a false alert.
Some routers, like Linksys home routers, generate lots of UPnP related alerts. To avoid false alarms, you have to modify and tune different default rules. In some cases you may need to disable some of the rules to avoid false alarms.
* Sensor: The machine on which an intrusion detection system is running is also called the sensor in the literature because it is used to “sense” the network.
What is a Intrusion Detection System (IDS)::
A system that tries to identify attempts to hack or break into a computer system or to misuse it. IDSs may monitor packets passing over the network, monitor system files, monitor log files, or set up deception systems that attempt to trap hackers.
Computer systems have become more vulnerable to intrusions than ever. Intrusion Detection is a security technology that allows not only the detection of attacks, but also attempts to provide notification of new attacks unforeseen by other components. Intrusion detection is an important component of a security system, and it complements other security technologies.
How does an IDS work::
While there are several types of IDSs, the most common types work the same. They analyze network traffic and log files for certain patterns. While a firewall will continually block a hacker from connecting to a network, most firewalls never alert an admin.
The admin may notice if s/he checks the access log of the firewall, but that could be weeks or even months after the attack. This is where an IDS comes into play. The attempts to pass through the firewall are logged, and IDS will analyze its log. At some point in the log there will be a large number of request-reject entries. An IDS will flag the events and alert an administrator. The admin can then see what is happening right after or even while the attacks are still taking place. This gives an admin the advantage of being able to analyze the techniques being used, source of attacks, and methods used by the attacker.
Types of intrusion detection systems::
* Host-Based Intrusion Detection System (HIDS): Host-based intrusion detection systems or HIDS are installed as agents on a host. These intrusion detection systems can look into system and application log files to detect any intruder activity.
* Network-Based Intrusion Detection System (NIDS): These IDSs detect attacks by capturing and analyzing network packets. Listening on a network segment or switch, one network-based IDS can monitor the network traffic affecting multiple hosts that are connected to the network segment, thereby protecting those hosts. Network-based IDSs often consist of a set of single-purpose sensors or hosts placed at various points in a network. These units monitor network traffic, performing local analysis of that traffic and reporting attacks to a central management console.
Things to consider (important!!)
* Signatures: Signature is the pattern that you look for inside a data packet. A signature is used to detect one or multiple types of attacks. For example, the presence of “scripts/iisadmin” in a packet going to your web server may indicate an intruder activity. Signatures may be present in different parts of a data packet depending upon the nature of the attack.
* Alerts: Alerts are any sort of user notification of an intruder activity. When an IDS detects an intruder, it has to inform security administrator about this using alerts. Alerts may be in the form of pop-up windows, logging to a console, sending e-mail and so on. Alerts are also stored in log files or databases where they can be viewed later on by security experts.
* Logs: The log messages are usually saved in file.Log messages can be saved either in text or binary format.
* False Alarms: False alarms are alerts generated due to an indication that is not an intruder activity. E.g. misconfigured internal hosts may sometimes broadcast messages that trigger a rule resulting in generation of a false alert.
Some routers, like Linksys home routers, generate lots of UPnP related alerts. To avoid false alarms, you have to modify and tune different default rules. In some cases you may need to disable some of the rules to avoid false alarms.
* Sensor: The machine on which an intrusion detection system is running is also called the sensor in the literature because it is used to “sense” the network.
What are CAPTCHAs ?
What are CAPTCHAs
Whenever we create an account on any website or comment on any blog we see scrambled words which we have to type and continue these are CAPTCHAs .
What are CAPTCHAs and what they do?
It stands for Completely Automated Public Turing-test to tell Computers and Humans Apart.These tries to test that you are a person and not a auto filling software.
Why CAPTCHAs are necessary?
These are used to prevent hackers from avoiding misuse of online services.
There are some examples of activities which are undertaken by hackers are given below :-
-Opening someone's account by attempting different password again and again.
-Creating hundreds of free accounts
-Swaying an online poll by robotically submitting hundreds of false responses.
-Spamimng blogs by posting dozens of bogus comments.
These CAPTCHAs test prevent about 90% of hackers attacks.
What is a logic behind this CAPTCHAs?
Commonly, these CAPTCHA phrases are .gif pictures of scrambled words, but can also be .mp3 voice recordings. These pictures and recordings are very hard for conventional software programs to understand, and hence, robots are usually unable to type the phrase in response to the picture or recording.
Whenever we create an account on any website or comment on any blog we see scrambled words which we have to type and continue these are CAPTCHAs .
What are CAPTCHAs and what they do?
It stands for Completely Automated Public Turing-test to tell Computers and Humans Apart.These tries to test that you are a person and not a auto filling software.
Why CAPTCHAs are necessary?
These are used to prevent hackers from avoiding misuse of online services.
There are some examples of activities which are undertaken by hackers are given below :-
-Opening someone's account by attempting different password again and again.
-Creating hundreds of free accounts
-Swaying an online poll by robotically submitting hundreds of false responses.
-Spamimng blogs by posting dozens of bogus comments.
These CAPTCHAs test prevent about 90% of hackers attacks.
What is a logic behind this CAPTCHAs?
Commonly, these CAPTCHA phrases are .gif pictures of scrambled words, but can also be .mp3 voice recordings. These pictures and recordings are very hard for conventional software programs to understand, and hence, robots are usually unable to type the phrase in response to the picture or recording.
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