C.S. Projects

Archive for May, 2020

Ethical Hacking — Week 10

Privilege Escalation

Today’s session focused on attacking passwords. Passwords is used as one of the authentication factor, this can be based on either something you know or something you have or who you are

There two types of password attacks offline attacks and online attacks In offline attacks, hackers need physical access to the machine to be able to perform this attack, whereas in online attack, the attack can be done from a remote location.

The tools used in offline attack could be Rainbowcrack or Samdump2 or John the Ripper or Ophcrack or Crunch or Wyd

The tools used in online attack could be BruteSSH or Hydra or Dsniff or Hamster or TCPdump or Topic or Wireshark

Ethical Hacking — Week 9

Target Exploitation

In today’s session, I learned about EternalBlue. EternalBlue is a cyberattack exploit developed by the US National Security Agency otherwise known as the NSA. It was leaked by the Shadow Brokers hacker group on April 14, 2017.

EternalBlue exploits a vulnerability in Microsoft’s implementation of the Server Message Block protocol. The vulnerability exists because the SMB version 1 (SMBv1) server in various versions of Microsoft Windows mishandles specially crafted packets from remote attackers, allowing them to execute arbitrary code on the target computer.

In May 2019, the city of Baltimore struggled with a cyberattack by digital extortionists using EternalBlue. The attack froze thousands of computers, shut down email and disrupted real estate sales, water bills, health alerts and many other services.

I also reviewed about the topics I learned previously. I learned about social engineering attacks. Social Engineering attacks are considered deadly as it is very easy to execute. It is a low-risk and high-reward type of attack. It is very easy to fool people in these kinds of attacks as it depends on their trust and exploits it. I also reviewed about SET again which is Social Engineering Toolkit which is used to create famous websites and trick victims into giving out their personal details.

Intelligent System — Week 9

Neural Networks

In today’s session I learned about Neural Network. I learned about the difference between biological neurons and artificial neurons such as biological neurons are fault-tolerant whereas artificial neurons are not fault-tolerant. I learned about single layer neural network and multi layer neural network.I also learned about learning rate and artificial neural network. I also learned about deep learning and how to train a single layer perceptrons