Monday 31 October 2016

What is Dos Attack

Ultimate guide to DoS(Denial of Service) Attacks


Cutting off some business from the internet can lead to significant loss of business or money. The internet and computer networks power a lot of businesses. Some organizations such as payment gateways, ecommerce sites entirely depend on the internet to do business. Denials of Service attacks are used to deny legitimate users access to a resource such as accessing a website.
Inthis tutorial, we will introduce you towhat denial of service attack is, how it is performed and how you can protect against such attacks.


What is DoS Attack?

DoS is the acronym for Denial of Service. It is an attack that is aimed at either cutting off access to a resource such as a web site/app/service etc or making it extremely slow. This type of attack is usually implemented by hitting the target resource such as a web server with too many requests at the same time. This results in the server failing to respond to all the requests. The effect of this can either be crashing the servers or slowing them down.

 Types of Dos Attacks

There are two types of Dos attacks namely; 

  • DoS– this type of attack is performed by a single host

  • Distributed DoS– this type of attack is performed by a number of compromised machines that all target the same victim. It floods the network with data packets.


How DoS attacks work

Let’s look at how DoS attacks are performed and the techniques used. We will look at five common types of attacks.

Ping of Death

The ping command is usually used to test the availability of a network resource. It works by sending small data packets to the network resource. The ping of death takes advantage of this and sends data packets above the maximum limit (65,536 bytes) that TCP/IP allows. TCP/IP fragmentation breaks the packets into small chunks that are sent to the server. Since the sent data packages are larger than what the server can handle, the server can freeze, reboot, or crash.   

Smurf

This type of attack uses large amounts of Internet Control Message Protocol (ICMP) ping traffic target at an Internet Broadcast Address. The reply IP address is spoofed to that of the intended victim. All the replies are sent to the victim instead of the IP used for the pings. Since a single Internet Broadcast Address can support a maximum of 255 hosts, a smurf attack amplifies a single ping 255 times.  The effect of this is slowing down the network to a point where it is impossible to use it.   

Buffer overflow

A buffer is a temporal storage location in RAM that is used to hold data so that the CPU can manipulate it before writing it back to the disc. Buffers have a size limit. This type of attack loads the buffer with more data that it can hold. This causes the buffer to overflow and corrupt the data it holds. An example of a buffer overflow is sending emails with file names that have 256 characters.

 Teardrop

This type of attack uses larger data packets. TCP/IP breaks them into fragments that are assembled on the receiving host. The attacker manipulates the packets as they are sent so that they overlap each other. This can cause the intended victim to crash as it tries to re-assemble the packets.

SYN attack

SYN is short form for Synchronize. This type of attack takes advantage of the three-way handshake to establish communication using TCP. SYN attack works by flooding the victim with incomplete SYN messages. This causes the victim machine to allocate memory resources that are never used and deny access to legitimate users.

DoS attack tools

The following are some of the tools that can be used to perform DoS attacks.  

  • Nemesy– this tool can be used to generate random packets. It works on windows. This tool can be downloaded from http://packetstormsecurity.com/files/25599/nemesy13.zip.html . Due to the nature of the program, if you have an anti virus, it will most likely be detected as a virus.
  • Land and LaTierra– this tool can be used for IP spoofing and opening TCP connections
  • Blast– this tool can be downloaded from http://www.opencomm.co.uk/products/blast/features.php
  • Panther- this tool can be used to flood a victim’s network with UDP packets.
  • Botnets– these are multitudes of compromised computers on the internet that can be used to perform a distributed denial of service attack.


 Hacking Activity: Ping of Death

We will assume you are using Windows for this exercise. We will also assume that you have at least two computers that are on the same network. DOS attacks are illegal on networks that you are not authorized to do so. This is why you will need to setup your own network for this exercise.
Open the command prompt on the target computer
Enter the command ipconfig. You will get results similar to the ones shown below



For this example, we are using Mobile Broadband connection details. Take note of the IP address. Note: for this example to be more effective, you must use a LAN network.
 Switch to the computer that you want to use for the attack and open the command prompt

We will ping our victim computer with infinite data packets of 65500
Enter the following command
ping 10.128.131.108 –t -65500

  • “ping” sends the data packets to the victim
  • “10.128.131.108” is the IP address of the victim
  • “-t” means the data packets should be sent until the program is stopped
  • “-l” specifies the data load to be sent to the victim
You will get results similar to the ones shown below


Flooding the target computer with data packets doesn’t have much effect on the victim. In order for the attack to be more effective, you should attack the target computer with pings from more than one computer.
The above attack can be used to attacker routers, web servers etc.
If you want to see the effects of the attack on the target computer, you can open the task manager and view the network activities.
  • Right click on the task bar
  • Select start task manager
  • Click on the network tab
  • You will get results similar to the following

If the attack is successful, you should be able to see increased network activities.

Hacking Activity: Launch a DOS attack

 

In this practical scenario, we are going to use Nemesy to generate data packets and flood the target computer, router or server.

As stated above, Nemesy will be detected as an illegal program by your anti-virus. You will have to disable the anti-virus for this exercise.

Enter the target IP address, in this example; we have used the target IP we used in the above example.
HERE,
  • 0 as the number of packets means infinity. You can set it to a desired number if you do not want to send infinity data packets
  • The size field specifies the data bytes to be sent and the delay specifies the time interval in milliseconds.
Click on send button
You should be able to see the following results

 
The title bar will show you the number of packets sent
Click on halt button to stop the program from sending data packets.
You can monitor the task manager of the target computer to see the network activities.

Summary

  • A denial of service attack’s intent is to deny legitimate users access to a resource such as a network, server etc.
  • There are two types of attacks, denial of service and distributed denial of service.
  • A denial of service attack can be carried out using SYN flooding, Ping of Death, Teardrop, Smurf or buffer overflow
  • Security patches for operating systems, router configuration, firewalls and intrusion detection systems can be used to protect against denial of service attacks.

Blog By S.Adhikari






 




 
 

 

 

 

Sunday 23 October 2016

Type of Computer



Type of Computer


 Computers can be broadly classified by their speed and computing power.




1. PC (Personal Computer) : It is a single user computer system having moderately powerful microprocessor.
2. WorkStation : It is also a single user computer system which is similar to personal computer but have more powerful microprocessor.

3. Mini Computer : It is a multi-user computer system which is capable of supporting hundreds of users simultaneously.

4. Main Frame : It is a multi-user computer system which is capable of supporting hundreds of users simultaneously. Software technology is different from minicomputer.

5. Supercomputer : It is an extremely fast computer which can execute hundreds of millions of instructions per second.

PC (Personal Computer)

A PC can be defined as a small, relatively inexpensive computer designed for an individual user. PCs are based on the microprocessor technology that enables manufacturers to put an entire CPU on one chip. Businesses use personal computers for word processing, accounting, desktop publishing, and for running spreadsheet and database management applications. At home, the most popular use for personal computers is playing games and surfing Internet.
Although personal computers are designed as single-user systems, these systems are normally linked together to form a network. In terms of power, now-a-days High-end models of the Macintosh and PC offer the same computing power and graphics capability as low-end workstations by Sun Microsystems, Hewlett-Packard, and Dell.







Workstation

Workstation is a computer used for engineering applications (CAD/CAM), desktop publishing, software development, and other such types of applications which require a moderate amount of computing power and relatively high quality graphics capabilities.
Workstations generally come with a large, high-resolution graphics screen, large amount of RAM, inbuilt network support, and a graphical user interface. Most workstations also have a mass storage device such as a disk drive, but a special type of workstation, called a diskless workstation, comes without a disk drive.
Common operating systems for workstations are UNIX and Windows NT. Like PC, Workstations are also single-user computers like PC but are typically linked together to form a local-area network, although they can also be used as stand-alone systems.







Minicomputer

It is a midsize multi-processing system capable of supporting up to 250 users simultaneously.







Mainframe

Mainframe is very large in size and is an expensive computer capable of supporting hundreds or even thousands of users simultaneously. Mainframe executes many programs concurrently and supports many simultaneous execution of programs







Supercomputer

Supercomputers are one of the fastest computers currently available. Supercomputers are very expensive and are employed for specialized applications that require immense amount of mathematical calculations (number crunching). For example, weather forecasting, scientific simulations, (animated) graphics, fluid dynamic calculations, nuclear energy research, electronic design, and analysis of geological data (e.g. in petrochemical prospecting).






Thank You.

Blog By S.Adhikari 



 



 



 

Type of Computer Virus

 Virus






What is Computer Virus?

Computer viruses are small software programs that are designed to spread from one computer to another and to interfere with computer operation. A virus might corrupt or delete data on your computer, use your e-mail program to spread itself to other computers, or even erase everything on your hard disk.

Computer viruses are often spread by attachments in e-mail messages or instant messaging messages. That is why it is essential that you never open e-mail attachments unless you know who it's from and you are expecting it.

Viruses can be disguised as attachments of funny images, greeting cards, or audio and video files. Computer viruses also spread through downloads on the Internet. They can be hidden in illicit software or other files or programs you might download.


Computer Viruses

How Computer Viruses Work?

Here is the general way that viruses work:
1. An infected program is run. This is either a program file (in the case of a file-infecting virus) or a boot sector program at boot time. In the case of a Microsoft Word document the virus can be activated as soon as the document that contains it is opened for reading within Microsoft Word. If the "NORMAL.DOT" document template is infected (and this is the most common target of these viruses) then the virus may be activated as soon as Microsoft Word is started up.

2. The infected program has been modified so that instead of the proper code running, the virus code runs instead. This is usually done by the virus modifying the first few instructions to "jump" to where the virus code is stored. The virus code begins to execute.

3. The virus code becomes active and takes control of the PC. There are two ways that a virus will behave when it is run: direct-action viruses will immediately execute, often seeking other programs to infect and/or exhibiting whatever other possibly malicious behavior their author coded into them. Many file-infector viruses are direct-action. In contrast, memory-resident viruses don't do anything immediately; they load themselves into memory and wait for a triggering event that will cause them to "act". Many file infectors and all boot infectors do this (boot infectors have to become memory resident, because at the time they are executed the system is just starting up and there isn't that much "interesting" for them to do immediately.)

 4. What exactly the virus does depends on what the virus is written to do. Their primary goals however include replication and spreading, so viruses will generally search for new targets that they can infect. For example, a boot sector virus will attempt to install itself on hard disks or floppy disks that it finds in the system. File infectors may stay in memory and look for programs being run that they can target for infection.

5. "Malevolent" viruses that damage files or wreak havoc in other ways will often act on triggers. There are viruses that will only activate on particular days of the year (such as the infamous "Friday the 13th"), or act randomly, say, deleting a file every 8th time they are run. Some viruses do nothing other than trying to maximize their own infection to as many files and systems as possible.

    Computer Viruses

    Most Common Types of Viruses and Other Malicious Programs

    1. Resident Viruses

    This type of virus is a permanent which dwells in the RAM memory. From there it can overcome and interrupt all of the operations executed by the system: corrupting files and programs that are opened, closed, copied, renamed etc.

    Examples include: Randex, CMJ, Meve, and MrKlunky.

    2. Multipartite Viruses

    Multipartite viruses are distributed through infected media and usually hide in the memory. Gradually, the virus moves to the boot sector of the hard drive and infects executable files on the hard drive and later across the computer system.

    3. Direct Action Viruses

    The main purpose of this virus is to replicate and take action when it is executed. When a specific condition is met, the virus will go into action and infect files in the directory or folder that it is in and in directories that are specified in the AUTOEXEC.BAT file PATH. This batch file is always located in the root directory of the hard disk and carries out certain operations when the computer is booted.


    4. Overwrite Viruses

    Virus of this kind is characterized by the fact that it deletes the information contained in the files that it infects, rendering them partially or totally useless once they have been infected.

    The only way to clean a file infected by an overwrite virus is to delete the file completely, thus losing the original content.

    Examples of this virus include: Way, Trj.Reboot, Trivial.88.D.

    5. Boot Virus

    This type of virus affects the boot sector of a floppy or hard disk. This is a crucial part of a disk, in which information on the disk itself is stored together with a program that makes it possible to boot (start) the computer from the disk.

    The best way of avoiding boot viruses is to ensure that floppy disks are write-protected and never start your computer with an unknown floppy disk in the disk drive.

    Examples of boot viruses include: Polyboot.B, AntiEXE.

    6. Macro Virus

    Macro viruses infect files that are created using certain applications or programs that contain macros. These mini-programs make it possible to automate series of operations so that they are performed as a single action, thereby saving the user from having to carry them out one by one.

    Examples of macro viruses: Relax, Melissa.A, Bablas, O97M/Y2K.

    7. Directory Virus

    Directory viruses change the paths that indicate the location of a file. By executing a program (file with the extension .EXE or .COM) which has been infected by a virus, you are unknowingly running the virus program, while the original file and program have been previously moved by the virus.

    Once infected it becomes impossible to locate the original files.

    8. Polymorphic Virus

    Polymorphic viruses encrypt or encode themselves in a different way (using different algorithms and encryption keys) every time they infect a system.


    This makes it impossible for anti-viruses to find them using string or signature searches (because they are different in each encryption) and also enables them to create a large number of copies of themselves.

    Examples include: Elkern, Marburg, Satan Bug, and Tuareg.

    9. File Infectors

    This type of virus infects programs or executable files (files with an .EXE or .COM extension). When one of these programs is run, directly or indirectly, the virus is activated, producing the damaging effects it is programmed to carry out. The majority of existing viruses belongs to this category, and can be classified depending on the actions that they carry out.

    10. Encrypted Viruses

    This type of viruses consists of encrypted malicious code, decrypted module. The viruses use encrypted code technique which make antivirus software hardly to detect them. The antivirus program usually can detect this type of viruses when they try spread by decrypted themselves.

    11. Companion Viruses

    Companion viruses can be considered file infector viruses like resident or direct action types. They are known as companion viruses because once they get into the system they "accompany" the other files that already exist. In other words, in order to carry out their infection routines, companion viruses can wait in memory until a program is run (resident viruses) or act immediately by making copies of themselves (direct action viruses).

    Some examples include: Stator, Asimov.1539, and Terrax.1069

    12. Network Virus

    Network viruses rapidly spread through a Local Network Area (LAN), and sometimes throughout the internet. Generally, network viruses multiply through shared resources, i.e., shared drives and folders. When the virus infects a computer, it searches through the network to attack its new potential prey. When the virus finishes infecting that computer, it moves on to the next and the cycle repeats itself.

    The most dangerous network viruses are Nimda and SQLSlammer.

    13. Nonresident Viruses

    This type of viruses is similar to Resident Viruses by using replication of module. Besides that, Nonresident Viruses role as finder module which can infect to files when it found one (it will select one or more files to infect each time the module is executed).

    14. Stealth Viruses

    Stealth Viruses is some sort of viruses which try to trick anti-virus software by intercepting its requests to the operating system. It has ability to hide itself from some antivirus software programs. Therefore, some antivirus program cannot detect them.

    15. Sparse Infectors

    In order to spread widely, a virus must attempt to avoid detection. To minimize the probability of its being discovered a virus could use any number of different techniques. It might, for example, only infect every 20th time a file is executed; it might only infect files whose lengths are within narrowly defined ranges or whose names begin with letters in a certain range of the alphabet. There are many other possibilities.

    16. Spacefiller (Cavity) Viruses

    Many viruses take the easy way out when infecting files; they simply attach themselves to the end of the file and then change the start of the program so that it first points to the virus and then to the actual program code. Many viruses that do this also implement some stealth techniques so you don't see the increase in file length when the virus is active in memory.

    A spacefiller (cavity) virus, on the other hand, attempts to be clever. Some program files, for a variety of reasons, have empty space inside of them. This empty space can be used to house virus code. A spacefiller virus attempts to install itself in this empty space while not damaging the actual program itself. An advantage of this is that the virus then does not increase the length of the program and can avoid the need for some stealth techniques. The Lehigh virus was an early example of a spacefiller virus.

    17. FAT Virus

    The file allocation table or FAT is the part of a disk used to connect information and is a vital part of the normal functioning of the computer. 

    This type of virus attack can be especially dangerous, by preventing access to certain sections of the disk where important files are stored. Damage caused can result in information losses from individual files or even entire directories.

    18. Worms

    A worm is technically not a virus, but a program very similar to a virus; it has the ability to self-replicate, and can lead to negative effects on your system and most importantly they are detected and eliminated by antiviruses.


    Examples of worms include: PSWBugbear.B, Lovgate.F, Trile.C, Sobig.D, Mapson.

    19. Trojans or Trojan Horses

    Another unsavory breed of malicious code (not a virus as well) are Trojans or Trojan horses, which unlike viruses do not reproduce by infecting other files, nor do they self-replicate like worms.

    20. Logic Bombs

    They are not considered viruses because they do not replicate. They are not even programs in their own right but rather camouflaged segments of other programs.

    Their objective is to destroy data on the computer once certain conditions have been met. Logic bombs go undetected until launched, and the results can be destructive.

    Thank You

    Blog By S.Adhikari

    Saturday 22 October 2016

    7 Types of Hacker

    7 Types of Hacker

     

      

    Today i am going to tech you Types of Hacker .  There are good and bad hackers. Here is a window into what they do and why:...

     


    1. Script KiddieScript Kiddies normally don’t care about hacking (if they did, they’d be Green Hats. See below.). They copy code and use it for a virus or an SQLi or something else. Script Kiddies will never hack for themselves; they’ll just download overused software (LOIC or Metasploit, for example) and watch a YouTube video on how to use it. A common Script Kiddie attack is DoSing or DDoSing (Denial of Service and Distributed Denial of Service), in which they flood an IP with so much information it collapses under the strain. This attack is frequently used by the “hacker” group Anonymous, which doesn’t help anyone’s reputation.


        2. White Hat Hackers - These are the good guys, computer security experts who specialize in penetration testing and other methodologies to ensure that a company’s information systems are secure. These IT security professionals rely on a constantly evolving arsenal of technology to battle hackers




    3. Black Hat Hackers - These are the bad guys, who are typically referred to as just plain hackers. The term is often used specifically for hackers who break into networks or computers, or create computer viruses. Black hat hackers continue to technologically outpace white hats. They often manage to find the path of least resistance, whether due to human error or laziness, or with a new type of attack. Hacking purists often use the term “crackers” to refer to black hat hackers. Black hats’ motivation is generally to get paid.


     4. Grey Hat Hacker - A grey hat hacker / cracker, otherwise called a wafer, is the kind of programmer that has vindictive purpose at whatever point he goes about breaking into PC security frameworks with the utilization of innovation, for example, a system, telephone framework, or PC and without approval. His vindictive purposes can extend from various types digital criminal acts, for example, theft, fraud, Mastercard extortion, vandalism, et cetera. He could possibly use faulty strategies, for example, conveying worms and malignant destinations to meet his finishes. 




      5. Green Hat HackerThese are the hacker “n00bz,” but unlike Script Kiddies, they care about hacking and strive to become full-blown hackers. They’re often flamed by the hacker community for asking many basic questions. When their questions are answered, they’ll listen with the intent and curiosity of a child listening to family stories. 




      6. Red Hat Hacker These are the vigilantes of the hacker world. They’re like White Hats in that they halt Black Hats, but these folks are downright SCARY to those who have ever tried so much as PenTest. Instead of reporting the malicious hacker, they shut him/her down by uploading viruses, DoSing and accessing his/her computer to destroy it from the inside out. They leverage multiple aggressive methods that might force a cracker to need a new computer.





      7. Blue Hat HackerIf a Script Kiddie took revenge, he/she might become a Blue Hat. Blue Hat hackers will seek vengeance on those who’ve them angry. Most Blue Hats are n00bz, but like the Script Kiddies, they have no desire to learn.


    There you have it. Thanks for reading.

    Blog by S.Adhikari


       
       

    Thursday 20 October 2016

    Hack Facebook by Kali Linux Tabnabbing

          Hack Facebook by Kali Linux Tabnabbing

    Today i am going to show how to hack facebook in your kali linux Tabnabbing method.....

     

    This tutorial is meant for enhancing you networking skills, as well as to develop understanding of how fake web pages are created, so that you can protect yourself from such attacks. Don’t use this information to hack someone’s account, or you’ll run the risk of getting into legal troubles. If you haven’t yet read the previous post, you should. It might not be very enlightening in terms of technical details, but it quite enjoyable and will provide you with a background of what we are looking at.


    Social Engineering Toolkit

    The Social-Engineer Toolkit (SET) was created and written by the founder of TrustedSec. It is an open-source Python-driven tool aimed at penetration testing around Social-Engineering. SET has been presented at large-scale conferences including Blackhat, DerbyCon, Defcon, and ShmooCon. With over two million downloads, SET is the standard for social-engineering penetration tests and supported heavily within the security community.

     

    Se-toolkit

    Start Kali Linux. In a console/terminal type se-toolkit.
    Something like this will show up ........
    [-] New set.config.py file generated on: 2016-10-20 21:49:34.501407
    [-] Verifying configuration update...
    [*] Update verified, config timestamp is: 2016-10-20 21:49:34.501407
    [*] SET is using the new config, no need to restart


                              _                                           J
                             /-\                                          J
                        _____|#|_____                                     J
                       |_____________|                                    J
                      |_______________|                                   E
                     ||_POLICE_##_BOX_||                                  R
                     | |-|-|-|||-|-|-| |                                  O
                     | |-|-|-|||-|-|-| |                                  N
                     | |_|_|_|||_|_|_| |                                  I
                     | ||~~~| | |---|| |                                  M
                     | ||~~~|!|!| O || |                                  O
                     | ||~~~| |.|___|| |                                  O
                     | ||---| | |---|| |                                  O
                     | ||   | | |   || |                                  O
                     | ||___| | |___|| |                                  !
                     | ||---| | |---|| |                                  !
                     | ||   | | |   || |                                  !
                     | ||___| | |___|| |                                  !
                     |-----------------|                                  !
                     |   Timey Wimey   |                                  !
                     -------------------                                  !

    [---]        The Social-Engineer Toolkit (SET)         [---]
    [---]        Created by: David Kennedy (ReL1K)         [---]
                          Version: 7.3.12                  
                      Codename: 'Underground'             
    [---]        Follow us on Twitter: @TrustedSec         [---]
    [---]        Follow me on Twitter: @HackingDave        [---]
    [---]       Homepage: https://www.trustedsec.com       [---]

            Welcome to the Social-Engineer Toolkit (SET).
             The one stop shop for all of your SE needs.

         Join us on irc.freenode.net in channel #setoolkit

       The Social-Engineer Toolkit is a product of TrustedSec.

               Visit: https://www.trustedsec.com

       It's easy to update using the PenTesters Framework! (PTF)
    Visit https://github.com/trustedsec/ptf to update all your tools!


              There is a new version of SET available.
                         Your version: 7.3.12
                      Current version: 7.4.1

    Please update SET to the latest before submitting any git issues.


     Select from the menu:

       1) Social-Engineering Attacks
       2) Penetration Testing (Fast-Track)
       3) Third Party Modules
       4) Update the Social-Engineer Toolkit
       5) Update SET configuration
       6) Help, Credits, and About

      99) Exit the Social-Engineer Toolkit

    set> 
    Now type the 1) Social-Engineering Attacks and press enter.
    and then  

    Now type the 2) Website Attack Vectors and press enter



     Now type the 3) Credential Harvester Attack Method and press enter


    Now type the 2) Site Cloner and press enter

      Now Find your IP

    Plz go back another terminal and type ifconfig and press enter



    Now copy your IP and past Setoolkit Terminal and press enter







    And then type www.facebook.com and hit enter









    Now you are ready for Hacking.........

    Now go to Browser and type bitly.com  and paste your IP the given box

     
     

    now you send the link in your victim 

    your Victim click the link and see this 

    Now if your victim enter something in the field, it also shows up on se-toolkit. I entered "exampl@gmail.com" in username field and "Kalilinux" in password field. This is what se-toolkit shows- 

     
     

    so you are done

    also check this video  

    Thank You

    Blog by S.Adhikari

     

    Tuesday 18 October 2016

    How To Download Youtube Video In Linux Terminal

    How To Download Youtube Video In Linux Terminal

     

    Today i am going to show how to download Youtube video in Kali Linux Terminal with youtube-dl

    youtube-dl is a Python based small command-line tool that allows to download videos from YouTube.com
    Recently, youtube-dl added video download support for 17 new websites: brightcove.com, auengine.com, RingTV, instagram.com, Jukebox, 3sat, CSpan, Statigr.am, traileraddict.com, hotnewhiphop.com, wat.tv, tu.tv, gamespot.com, tudou.com, Wimp.com, archive.org and break.com

    • youtube-dl also allows to choose specific avialable video quality format to download or let the program itself automatically download higher quality video from the site
    • also has supports for user specific playlist downloads, options to add custom or original title to the downloaded video file. proxy support and many more.

    Install YouTube-DL in Kali linux

    Update: you can use curl or wget command to install latest version of youtube-dl script as shown.


    $ sudo curl https://yt-dl.org/latest/youtube-dl -o /usr/local/bin/youtube-dl
    OR
    sudo wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/local/bin/youtube-dl
     
     
     

    After downloading the script, set the executable permission.

    $ sudo chmod a+rx /usr/local/bin/youtube-dl
     
     

    Update YouTube-DL

    # youtube-dl -U
     

    How to Use YouTube-DL to Download Videos

    To download a video file, simply run the following commend. Where "VIDEO_URL" is the url of the video that you want to download.

    # youtube-dl https://www.youtube.com/watch?v=bu_sMqZyOTg
     
     Also be downloaded from the Youtube-dl page



    Blog by S.Adhikari
     


     
     

     

    Monday 17 October 2016

    Download 12 Best Android Hacking Apps 2016

    Download 12 Best Android Hacking Apps 2016


    As we all know hacking and pen testing is only can be done on computers. But now the world is changing now your mobile is small hacking toolkit using these apps. Apart from the normal mobile user, techie guys also like its flexible features that allows them to do various new task. As with this its security concerns also headed up. Recently we have noted that many of the cyber hackers are targeting Android users. There are many techie guys have also unrestricted the features that are restricted by its owners, Google. So I thing the below words are familiar to them but many of them have not been aware. Here I am discussing some of the Apps that are meant for the Security tester, Ethical hacker and for those guys who really explore the tech world.


    #1 Hackode

     

      

    The hacker’s Toolbox is an application for penetration tester, Ethical hackers, IT administrator and Cyber security professional to perform different tasks like reconnaissance, scanning performing exploits etc.


    #2 Androrat

     
     

    Remote Administration Tool for Android. Androrat is a client/server application developed in Java Android for the client side and in Java/Swing for the Server.


    #3 Droidbox

     


     



    DroidBox is developed to offer dynamic analysis of Android applications.

     

    #4 Droidsheep

     

     


    DroidSheep can be easily used by anybody who has an Android device and only the provider of the web service can protect the users. So Anybody can test the security of his account by himself and can decide whether to keep on using the web service. 

     

    #5 Zanti

     

     


    zANTI is a comprehensive network diagnostics toolkit that enables complex audits and penetration tests at the push of a button. It provides cloud-based reporting that walks you through simple guidelines to ensure network safety.

     

    #6 Burp Suite 

     

     Burp Suite is an integrated platform for performing security testing of web applications. Its various tools work seamlessly together to support the entire testing process, from initial mapping and analysis of an application’s attack surface, through to finding and exploiting security vulnerabilities. 



     

    #7 APKinspector 

     

     APKinspector is a powerful GUI tool for analysts to analyse the Android applications. The goal of this project is to aide analysts and reverse engineers to visualize compiled Android packages and their corresponding DEX code. 



     

    #8 Nmap for Android 

     

     Nmap (network mapper) is one the best among different network scanner (port finder) tool, Nmap mainly developed for Unix OS but now it is available on Windows and Android as well. Nmap for android is a Nmap apps for your phone! Once your scan finishes you can e-mail the results. This application is not a official apps but it looks good.





    #9 Arpspoof





    Arpspoof is a tool for network auditing originally written by Dug Song as a part of his dsniff package. This app redirects traffic on the local network by forging ARP replies and sending them to either a specific target or all the hosts on the local network paths.




    #10 dSploit





    dSploit is an Android network analysis and penetration suite which aims to offer to IT security experts/geeks the most complete and advanced professional toolkit to perform network security assessments on a mobile device.

     

    #11 Shark for Root




     

    Traffic sniffer, works on 3G and WiFi (works on FroYo tethered mode too). To open dump use WireShark or similar software, for preview dump on phone use Shark Reader. Based on tcpdump.

     

    #12 SSHDroid

     

     



    Android Secure Shell: Secure shell or SSH is the best protocol that provides an extra layer of security while you are connecting with your remote machine.SSHDroid is a SSH server implementation for Android. This application will let you to connect to your device from a PC and execute commands (like “terminal” and “adb shell”). 

     


    Note:- All content are intended for Security Research Purpose and should not be used illegaly.


    Here to Download best android tools for hacking 2016, As we all know hacking and pen testing is only can be done on computers. But now the world is changing now your mobile is small hacking toolkit using these apps.




    Blog by S.Adhikari & P.Garai