Sunday, 14 January 2018

WINDOWS SUBSYSTEM FOR LINUX



Microsoft partnered with Canonical (creator of Ubuntu) to bring Linux environment experience in Windows 10. Through Windows Subsystem For Linux (WSL), users can use Linux tools using bash on Windows. This is especially for command line tools rather than GUI tools because exception and errors will occur in Windows 10 environment. Most of command line tools will run in WSL.



How We can activate WINDOWS SUBSYSTEM FOR LINUX in Windows 10

       For accessing WSL, Windows 10 should be updated to Fall Creators Update. After updating Operating system, follow the steps as below: -



Open control panel (either from start menu).





Click on Programs and Features.




In the opened window, on the left side click on TURN WINDOWS FEATURE ON OR OFF




Now check the WINDOWS SUBSYSTEM FOR LINUX and then click OK.





Restart your computer.

Now Again, start your computer.

Go to Microsoft Store App (from start menu)
Search Linux
Download from available Linux distro (i.e. Ubuntu, Fedora and Suse Linux)

After download open Linux
It will take some time to setup



Now you can run Linux commands in windows without installing actual Linux as Operating system.








Thursday, 7 September 2017

Ransomware


LOCKY RANSOMWARE 

Locky ransomware is malicious program spreading through spam emails which lock your computer or network connected system by encrypting it. To decrypt your devices, it asks for ransom in bitcoins. At the initial stage, it was using fake Dropbox domains to spread ransomware. This malicious program spread zip or documents having extension .exe(although it varies) which have VB script(.vbs). It is run by the hacker through various email campaigns which included 23 million emails. Locky ransomware is frequently updated from initial days of launch.





PROCESS OF ATTACK 

Updated locky ransomware does not trigger by itself running the script present in word document macro. It waits for the user to close the fake document. The script run in the background to encrypt computer contents. Script run to download payload and payload is invoked from %appdata% folder. The message is displayed when commands are fully executed.







HOW TO BE SAFE FROM LOCKY RANSOMWARE 

1. Do not open unknown emails from an unknown person or promotional emails.
2. Enable two step authentication on email ids.
3. Never download email attachment with .exe extension.
4. Don’t enable editing or macro in downloaded files.
5. Install security software and regularly update your system.
6. Perform regular backup of your system.
7. Disable macro in Microsoft office and Remote desktop connections.
8. Don’t install unwanted software.
9. Install firewall from being your system exploited.
10. Block attachment of malicious extension.


By -Vijay Bhushan

Friday, 1 September 2017

Blue Whale - The Internet Game



Internet Game: BLUE WHALE

Blue Whale is a psychological internet game which has various task in series and last is to commit suicide. It is observed to be happening in many countries. This game is run by administrators on various internet forums to players.
The term “Blue Whale” is derived from beached whale who intentionally come on the beach to die.
It started as of “F57” game in Russia, in 2013. It came limelight as a wider phenomenon among teenager when a journalist reported unrelated suicide cases to the game in 2016. Since then it is banned in many countries. Law agencies and authorities are working to stop the trend of Blue Whale game.
It is also linked to “Human Embroidery” game in China.
This game cannot be left when started by teenagers as they have affection or cyber bullied for the game.


Structure Of The Game

Administrator of the game gives players series of the task each day up to 50 days.
Each task should be completed before getting a new task.
The completed task should be photographed and uploaded to administrators.
 Often players are cyber bullied and blackmailed.
Administrator finds players and invites to join them social media groups.


Tips to keep your child safe.

Talk to your children regularly.
Take out time for children to play.
Monitor online activities and affection on the internet towards different things.

Don’t leave you, child, alone most time and if your children live lonely, seek reason or provide psychological support to them. 



For 50 Tasks in The blue whale Game are -- 


1. Carve with a razor "f57" on your hand, send a photo to the curator.
2. Wake up at 4.20 a.m. and watch psychedelic and scary videos that curator sends you.
3. Cut your arm with a razor along your veins, but not too deep, only 3 cuts, send a photo to the curator.
4. Draw a whale on a sheet of paper, send a photo to curator.
5. If you are ready to "become a whale", carve "YES" on your leg. If not, cut yourself many times (punish yourself).
6. Task with a cipher.
7. Carve "f40" on your hand, send a photo to curator.
8. Type "#i_am_whale" in your VKontakte status.
9. You have to overcome your fear.
10. Wake up at 4:20 a.m. and go to a roof (the higher the better)
11. Carve a whale on your hand with a razor, send a photo to curator.
12. Watch psychedelic and horror videos all day.
13. Listen to music that "they" (curators) send you.
14. Cut your lip.
15. Poke your hand with a needle many times
16. Do something painful to yourself, make yourself sick.
17. Go to the highest roof you can find, stand on the edge for some time.
18. Go to a bridge, stand on the edge.
19. Climb up a crane or at least try to do it
20. The curator checks if you are trustworthy.
21. Have a talk "with a whale" (with another player like you or with a curator) in Skype.
22. Go to a roof and sit on the edge with your legs dangling.
23. Another task with a cipher.
24. Secret task.
25. Have a meeting with a "whale."
26. The curator tells you the date of your death and you have to accept it.
27. Wake up at 4:20 a.m. and go to rails (visit any railroad that you can find).
28. Don't talk to anyone all day.
29. Make a vow that "you're a whale."
30-49. Everyday you wake up at 4:20am, watch horror videos, listen to music that "they" send you, make 1 cut on your body per day, talk "to a whale."
50. Jump off a high building. Take your life.
(source from - higgypop.com)



On Todays Newspaper I read about the Master Mind behind this Game is --- Click here  (It will redirect to - /metro.co.uk )







Friday, 27 January 2017

Partition (MBR Vs GPT)




Partition Table - 

A partition table is a 64-byte data structure that provides basic information for a computer's operating system about the division of the hard disk drive (HDD) into primary partitions.

A data structure is an efficient way of organizing data. A partition is a division of a HDD into logically independent sections.


There are two ways of Partition

1- MBR Partition Table

2- GPT Partition Table







Advantages of GPT-

  • It is modern Partition Table
  • It has no limitation like MBR Partition Table
  • Robust Standard 
  • Windows 8, 8.1 and 10 run on GPT Partition 
  • GPR gradually replacing MBR
  • Helpful in DUAL BOOT 


 Check & Conversion - 

Steps -


♣  Evaluate CMD.
(Note- window + R, then type " cmd " and hit enter)

♣ Type " diskpart "

♣ Type " list disk "

♣ Type " select disk #
(Note - # is a number of your disk in which you want to perform operation. Please choose disk carefully, It will lead to data lose. )


























♣ Type "
clean "
(Note - This Commands delete your data )

♣ Type " convert gpt "  or " convert mbr "
(Note - GPT is recommended )

♣ Type " exit "





Saturday, 21 January 2017

Hidden Game On Google Chrome

Game on Google Chrome



Would you every seen, this image on the your Google Chrome Browser .





It is a small game , embedded in google chrome to play when ever net is not working properly or you have slow connection (that cannot able to load a web page)


How to play this Game.


♥ Disconnect your internet connection.

♥ Load any website, it won’t load since there is no internet. It will show an error message which will     have a dinosaur on the top.
♥ Press the “Space Bar” key and dinosaur will jump in the air, the game will start immediately. Use       space bar key to jump, down arrow key to bend the dinosaur. (It can also play with UP and Down       Key)


It’s a really very addictive game. 

Google Chrome also add extra sweetness by adding flying birds and after make a considerable score it goes into night mode that looks awesome.






Use this hacked version to play any time without needing to go offline -




By - Somesh Sah






Wednesday, 18 January 2017

Bitcoin




What is Bitcoin ?


◘ Bitcoin is digital currency (cryptocurrency) and a payment system

◘ Bitcoins aren’t printed, like our Rupee, Dollars or Euros

◘ It is created and held electronically (through nodes) and No one controls it.

◘ Bitcoin is invented by an unidentified programmer, or group of programmers, under the name of Satoshi Nakamoto.

◘ Bitcoin was introduced on 31 October 2008

◘ Bit coins are produced by people, and increasingly businesses, running computers all around the world, using software that solves mathematical problems.




Difference Between Bit coin and Normal Currency?


◘ It is not printed.

◘ Banks don't have power to control it.

◘ Bitcoin can be used to buy things electronically.

◘ No transaction fee imposed (By any bank)

◘ The system is peer to peer and transactions take place between users directly.




Characteristics of a Bitcoin ?


It is Anonymous - It can not linked with your any personal details.You also have multiple accounts to handle bitcoin.

Transaction fees - Banks charge Transaction fees whereas in Bitcoin no transaction charged.

It is fast - You can send money anywhere and it will arrive within a minutes.

It is decentralized -The bitcoin network is not controlled by one central authority.




Site to Buy and Sell Bitcoin

For more Information and stat dealing with bitcoin please visit bitcoin.org





By - Somesh Sah




Sunday, 18 December 2016

Using WHATSAPP From Your System (Computer/Laptop)



Hey,

 Suppose You have to send a file from your laptop to a Whatsapp contact. So you have to transfer data from your laptop to mobile and only after that you can send it through your mobile.

Now, you can use Whatsapp from your System (Computer/Laptop) Then you can do it fast 
and easily.


STEPS - 

1 - On Your Mobile - Open Your Whatsapp


I - CLICK ON THE OPTION BUTTON WHICH IS IN THE TOP OF Whatsapp.(three dots on the right upper corner of the screen)


  II - CLICK ON Whatsapp WEB.






2- On Your System - Open Browser In your System (Computer/Laptop)

3- Go to URL bar and type - " https://web.whatsapp.com/ " 




4- On Your Mobile -Scan a QR Code that is shown on System (Computer/Laptop) Screen  




That's It ....Now you can use Whatsapp from your System (Computer/Laptop)
and you can directly send your files to a whatsapp contact.  




If You want  to add more then one System (Computer/Laptop) then click on add ( + ) Symbol from the top.






Monday, 19 September 2016

The Cyber Crimes In India




"Cyber Crime defined as a crime that is done from system using Internet."

Or

"Cyber Crime is unlawful act done from the digital devices using Internet."
Or 

According to whatis.com...

" Cyber crime, also called computer crime, is any illegal activity that involves a computer or network-connected device, such as a mobile phone or computer or laptops."





In the world of computers Cyber Crimes is done in two ways -


1- Computer as a Target - Using a computer attack to other computers.

    eg- Hacking, send Virus/Worm , DOS attack etc.

2- Computer as a weapon  - Using a computer to commit crimes.

    eg- Credit card frauds, Pornography etc.





Cyber Crimes are -


 Unauthorized access & Hacking
Using other system without its permission or acknowledgment.


 Trojan Attack
A Trojan horse is a kind of a program that allows the attacker/hacker to control the user’s computer from a remote location.


  Virus and Worm attack
A worm is a malicious computer program that replicates itself usually over a computer network.
A virus is a computer program that attaches itself to legitimate programs and files without the user’s consent.


 E-mail & IRC related crimes
1. Email spoofing
2. Email Spamming
3 Sending malicious codes through email
4. Email bombing
5. Sending threatening emails
6. Defamatory emails
7. Email frauds
8. IRC ( Internet Relay Chat ) related


   Denial of Service attacks:-
Flooding a computer resource with more requests than it can handle. This causes the resource to crash thereby denying access of service to authorized users.


  Distributed DOS
A distributed denial of service (DoS) attack is accomplished by using the Internet to break into computers and using them to attack a network.
Hundreds or thousands of computer systems across the Internet can be turned into “zombies” and used to attack another system or website.
  Pornography


  Forgery


 Cyber Terrorism:-
Targeted attacks on military installations, power plants, air traffic control, banks, trail traffic control, telecommunication networks are the most likely targets. Others like police, medical, fire and rescue systems etc.
Cyberterrorism is an attractive option for modern terrorists for several reasons.
1.It is cheaper than traditional terrorist methods.
2.Cyberterrorism is more anonymous than traditional terrorist methods.
3.The variety and number of targets are enormous.
4.Cyberterrorism can be conducted remotely, a feature that is especially appealing to terrorists.
5.Cyberterrorism has the potential to affect directly a larger number of people.


  Banking/Credit card Related crimes:-
 stolen card information or fake credit/debit cards are common.
Bank employee can grab money using programs to deduce small amount of money from all customer accounts and adding it to own account also called as salami.
Source -  


   E-commerce/ Investment Frauds:-


   Online gambling:-
There are millions of websites hosted on servers abroad, that offer online gambling. In fact, it is believed that many of these websites are actually fronts for money laundering.


 Identity Theft :- 
Identity theft is the fastest growing crime in countries like America.
Identity theft occurs when someone appropriates another's personal information without their knowledge to commit theft or fraud.


 Data diddling:-
Information is changed from the way it should be entered by a person typing in the data, a virus that changes data, the programmer of the database or application, or anyone else involved in the process of having information stored in a computer file.


 Theft of Internet Hours:-
Unauthorized use of Internet hours paid for by another person.


 Physically damaging a computer system:-
Physically damaging a computer by sending viruses or anything that can damage our hardware is a crime.
Source -  






Tuesday, 13 September 2016

ANDROID NOUGAT “SEAMLESS UPDATES”




IN UPCOMING ANDROID 7.0 i.e NOUGAT, GOOGLE WILL INTRODUCE THE CHANGE IN ITS UPDATE PROCESS.

IT IS REFERRED AS SEAMLESS UPDATE. THROUGH HIS METHOD, THERE WILL BE LESS INTERRUPTION TO THE USER DURING UPDATING THE SMARTPHONE.
SEAMLESS UPDATE WORKS BY USING TWO PARTITIONS: AN ACTIVE SYSTEM PARTITION AND A DORMANT PARTITION, WHICH ARE IMAGES OF EACH OTHER. OTA UPDATE IS DOWNLOADED IN ACTIVE PARTITION AND OTA UPDATE IS INSTALLED IN DORMANT PARTITION. AFTER REBOOT, DORMANT PARTITION BECOME ACTIVE SYSTEM PARTITION AND VICE VERSA . THROUGH THIS PROCESS, NEW UPDATE IS APPLIED.

ADVANTAGES OF SEAMLESS UPDATES

1.       FASTER UPDATE OF SMARTPHONE.
2.       DORMANT PARTITION SERVES AS BACKUP.
3.       BETTER HANDLING OF UPDATE FAILURES.


THIS SEAMLESS UPDATE WILL ONLY WORK WITH PRE-INSTALLED NOUGAT ANDROID SMARTPHONE.





By - V. Bhusan



Wednesday, 10 August 2016

ROOTKIT






Hey Friends,
Today I am going to introduce term ROOTKIT.

Rootkit is a tool or malicious tool that helps to get back door.
Rootkit is divided into two words ROOT + KIT.... ROOT means root/admin access and KIT means set of tools.
The Rootkit is installed in your computer system through various methods like virus inserted into your system,from download or copy from internet, through email,installing unsafe program etc.
Once a Rootkit is installed , this will create a back door for hackers/attackers which will help in remote access and authorize access.


Some Facts About ROOTKIT

1- It is a Malicious Software
2- It's hard to detect Rootkit, because it activated at the time of booting process.
3- Rootkit is developed for Unix OS.
4- It is limitless, because it also works inside windows directories/functions.
5- Rootkit is mainly used for making money through cyber crimes.
6- It is the most powerful technique among all.



If you want to know more about rootkit...Please visit

1- www.techrepublic.com   click here..
2- www.bleepingcomputer.com  click here..



By - Somesh Sah



Tuesday, 9 August 2016

⁠⁠⁠Trojan, Virus and Worm..




Hey Friends,
Today, I am going to explain you "Terms Like ⁠⁠⁠Trojans, Viruses and Worms...
There are very useful things for the hackers to get the information about the victim.
They often use these skills to gain access to the victim's systems. The aim of targeting an organization or a victim to steal sensitive data or information and physically damage computer controlled equipment and many more. Trojans, viruses and worms can be used to help to complete above tasks.





Trojan


-The full name of Trojan is a "Trojan Horse".
-A Trojan horse is a kind of a program that allows the attacker/hacker to control the user’s computer from a remote location.
-The program "Trojan" comes with your additional applications that is useful for users.
-When the user install the application, then hacker is able to install malicious softwares, create backdoors, install other unwanted applications that can be used to damage your system.

Activities performed by hacker by using Trojan horse.

-Hacker is able to use the user’s computer as part of the Botnet.
-Damage the user’s computer (crashing, blue screen of death etc.)
-Stealing sensitive data(password,card number etc).
-Modifying files on the user’s computer
-Installs various software like keylogger.
-Viewing the user’s personal data (pictures,screenshot etc)
- Able to Downloading and access all the useful information.



  Worm

A worm is a malicious computer program that replicates itself usually over a computer network. An attacker/hacker use a worm to complete the following tasks...
-Install backdoors on the victim’s computers.
(The created backdoor may be used to create zombie computers that are used to send spam emails, perform distributed denial of service attacks etc. the backdoors can also be exploited by other malware.Worms may also slowdown the network by consuming the bandwidth as they replicate.)
-Install harmful payload code carried within the worm.




Virus


-A virus is a computer program that attaches itself to legitimate programs and files without the user’s consent.
-Viruses can consume computer resources such as memory and CPU time.
-The attacked programs and files are said to be “infected”. A computer virus may be used to....
1-Access private data such as user id and passwords
2-Display annoying messages to the user
3-Corrupt data in your computer
4-Log the user’s keystrokes

These techniques involve deceiving the users to open the files which appear to be normal files such as word or excel documents. Once the file is opened, the virus code is executed and does what it’s intended to do.



Summary


Definition

Trojan - Malicious program used to control a victim’s computer from a remote location.
Worm - Self replicating program that attaches itself to other programs and files
Virus - Illegitimate programs that replicate themselves usually over the network

Purpose

Steal sensitive data, spy on the victim’s computer etc.
Disrupt normal computer usage, corrupt user data etc.
Install backdoors on victim’s computer, slow down the user’s network etc.

Precautions

-Use of anti-virus software (updated),
-Update patches for operating systems,
-Security policy on usage of the internet and external storage media etc.
⁠⁠⁠⁠-Take regular backup



By - Somesh Sah



ALSO READ -


VIRUS using BATCH Files









Sunday, 7 August 2016

FOOTPRINTING



Hey Friend,
Today i am here to tell you about Footprinting.

Footprinting 



" Footprinting is defined as the collection of all the information of the victim gathered."  

0r

"A fine art of gathering target information of the victim."



Types of Footprinting 


1-Active Footprinting
2-Passive Footprinting



Active Footprinting -

In this Footprinting , Hackers/Attacker does not make any direct connection but they can use same source by download as it is, to reduce risk and able to find out almost all the loopholes .
Example is google database hacking.


Passive Footprinting -

In Passive Footprinting, Hacker/Attacker does not make any direct connection/relation with the victim system.
All the information gathered by using internet (via google search ,web sites,social networking etc)


By Somesh Sah

WINDOWS SUBSYSTEM FOR LINUX

Microsoft partnered with Canonical (creator of Ubuntu) to bring Linux environment experience in Windows 10. Through Windows Subsystem F...