CyberGeek45

            On Tuesday many security researchers have reported a new wave of potentially destructive ransomware. This ransomware was known as Bad Rabbit. This malicious attack spread quickly across computer systems in Eastern Europe, including targets in Russian and Ukraine and has been detected in the United States.              This attack was barely showing its properties and its damage pattern was similar to the PETYA/NOT PETYA wiper attack that spread earlier this year.              According to the report generated by the Kaspersky.                Bad Rabbit is previously unknown ransomware family.                The ransomware dropper was distributed with the help of drive-by attacks. This happens when the target is visiting a legitimate website, a...

  What is blockchain technology? A blockchain originally block chain is a continuously growing list of records, called blocks , which are linked and secured using cryptography. Each block typically contains a hash pointer as a link to a previous block, a timestamp and transaction data. By design, blockchains are inherently resistant to modification of the data. A blockchain can serve as "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way". The first work on a cryptographically secured chain of blocks was described in 1991 by Stuart Haber and W. Scott Stornetta.           It can also be defined as " A database or a ledger that maintains a continuously growing list of data records or transactions" . "So, it's a spreadsheet, like Excel?" Many of us may be thinking of that.     In a way yes , but it has qualities that make it better than tradit...

The WannaCry ransomware attack is an ongoing worldwide cyberattack by the WannaCry ransomware cryptoworm, which targets computers running the Microsoft Windows operating system by encrypting data and demanding ransom payments in the Bitcoin cryptocurrency. The attack started on Friday, 12 May 2017,and has been described as unprecedented in scale, infecting more than 230,000 computers in over 150 countries. Parts of Britain's National Health Service (NHS), Spain's Telefónica, FedEx and Deutsche Bahn were hit, along with many other countries and companies worldwide. WannaCry spreads across local networks and the Internet to systems that have not been updated with recent security updates, to directly infect any exposed systems. To do so it uses the EternalBlue exploit developed by the U.S. National Security Agency (NSA), which was released by The Shadow Brokers two months before. A "critical" patch had been issued by Microsoft on 14 March 2017 to rem...

Here are the interesting facts, tips and tricks about the things you probably don't know about them. 1. How to make an essay longer : Hit CTRL+F, search "." and change the font size of the periods 12 to 14. They look the exact same, but will make your paper significantly longer. 2. How to get your word file back if you forgot to safe it: Accidentally closed your word file without saving? No auto-save either? No worry here is the solution for it. Search .asd into the file explorer under "my/this pc". The document will be there. Windows has your back. 3. How to know that pdf file you downloaded is a virus or not: If you download a "PDF" file and you see it ends in ".exe" delete it. It's a virus. 4. Downloading YouTube videos without using any software: If you want to download a YouTube video, just add "ss" to the URL between www. and YouTube. 5. Coping text form internet without formatting t...

Many of the people are bored of seeing the same old log screen of Windows 7. Well now you can change it by using these simple tricks which I will be showing to you. Setting Background Image on Log Screen   Start>click on "run">Type "Regedit" Press enter>Navigate to HKEY_LOCAL_MACHINE\SOFTWARES\MICROSOFT\WINDOWS\Current Version\Authentication\Logon UI\Background >Double Click on OEMBackground DWORD key. Select the background image for Logon Screen with size less than 256kb in size. You can use Image Resizer if you want to use image of your choice. Copy that image into the C:\Windows\system32\oobe\info\backgroungs folder. Rename the image to background Default.jpg Reboot and now your logon Image would have changed. Display a message at start up. Open Registry Editor (Go To start Run type Regedit & press enter). Navigate to:  HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\Current Version\Policies\System In the Right Side pane select ...

                   Firewalls are the technological barrier designed to prevent unauthorized or unwanted communications between computer networks or hosts. They were build to defend the corporate networks from any exploits. They are the first line of defense for every computer weather it is a personal or the corporate computer.                 So here is the question How it got started? and How this type of complex algorithm came into existence.                  Firewalls got particularly popular around 1996. This was the time where some new attack techniques emerged  such as buffer overflows, remote exploits. Their primary goal was to provide traffic control and monitoring. They enforce the security policy represented by a set of rules, specifying what is explicitly permitted/denied. They usually interconnect t...

Now a days many of us come to know about the viruses while working on while surfing through the internet. There is something like misunderstanding in the people that there are only viruses. There is also a term called worms .  There is the difference between the viruses and worms. Many people think that both the virus and worms are same. NO they are not the same. There is only one similarity between them is that they are the lines of code which are generated to infect the systems. Viruses are the self replicating program that produces its own codes by attaching copies of itself into another executable codes. Some virus affect computers as soon as their code is executed; others viruses lie dormant until a pre determined logical circumstance is met. Worm is a malicious program that can infect both local and remote machines. Worms spread automatically by infecting system after system in a network, and even spreading further to other networks. According to their actions worms...