Denial-of-service attacks

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    Denial-Of-Service Attacks

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    Denial of Service Attack: Denial-of-Service attacks are conducted by cyber-criminals with the intent of blocking legitimate users from accessing a network or server (Evens et al., p. 350-351). In many cases, these attacks occur on organizations, such as Facebook, and Twitter, and when successful, prevent a user from accessing the services of various websites, including email, and online accounts. Denial-of-service attacks are generally conducted by flooding networks with a large volume of packets containing useless requests. This causes the network to slow down, or even grind to a halt as the network struggles to process the meaningless packets. However, Denial-of-Service attacks do not harm a systems security parameters, nor do they access important information. They just hinder an authorized legal user from using or accessing a…

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    A denial of service attack is a push to make one or more PC frameworks inaccessible. It is normally focused at web servers, however it can likewise be utilized on mail servers, name servers, and some other sort of PC framework. Denial of service attack (DoS) attacks may be started from a solitary machine, yet they normally utilize numerous PCs to do an attacks. Since most servers have firewalls and other security programming introduced, it is anything but difficult to bolt out individual…

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    This week’s lab introduces the student to various types of attacks that can be implemented by distributing a Trojan Horse script or by performing a variety of Denial-of-Service attacks (DoS). To begin to understand how these attacks are performed, the student is instilled with the knowledge as well as the use of file-hashes to identify compromised files and also how to generate file-hashes to establish baseline standards, which could benefit a Tripwire type regiment. Then, the lab takes the…

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    Spear Phishing Attacks

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    trustworthy as a legitimate business entity, users are less suspicious.” (Karambelas, 2016, pg. 1). Trend Micro’s APT research team believes that spear phishing is the most favored APT attack bait. The cost of opening a spear-phishing email can be enormous. For example, the email service provider Epsilon “fell prey to a spear-phishing attack that caused the organization to lose an estimated US $4 billion.” (Trend Micro, 2012, pg.…

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    This attack, which happened in multiple waves, made it so many websites were inaccessible. Sites such as Twitter, SoundCloud, Spotify, Shopi, fyBox, Boston Globe, New York Times, Github, Airbnb, Reddit, Freshbooks, Heroku and Vox Media properties (Conger, 2016). Just what exactly is a DDoS attack and how can it bring down so many sites? A DDoS attack is where there is an attempt bring down a website or online service by flooding and overwhelming it with traffic from multiple sources…

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    Ann's Bad Im Case Study

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    Cyber vandals use premade tools to cause grief to their fellow citizens. DDoS attacks are a competitive business tool to keep a competitor from participating in a particular event or shutting down online businesses. Some states sponsor the use of the DDOS to silence government critics and internal opposition. To defend against a DDOS attack, a common and effective way of deploying a DDoS protection is by using Border Gateway Protocol routing. Second, writing some python scripts that try to…

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    Cloud Computing Attacks

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    continues to evolve and become faster with each passing year, the ability has emerged for companies to cut costs by offloading their networks to companies who host these services over the Internet. This practice has widely come to be known as Cloud Computing. The benefits of such a service are many, but it does come with its own risks. Those who take advantage of such services are exposed to various attacks utilizing the Internet. These potential attacks include, but are not limited to, web…

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    Android Malware and Botnets Malware in differing forms has been present since computers were first invented. One of the most interesting kinds of malware is that which takes control of a computer and reports back to the malicious actor that infected the computer. The malware allows an attacker to use the infected computer, effectively making the computer a bot. Normally, these bots are part of a network of infected computers known as a botnet. The attacker in control of a botnet can use it for a…

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    Importance Of Cyber War

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    China also conducted State supported email corruption “leads to data loss and even endangering the lives of employees” (Stiennon, 2010). Among the victims of China’s cyber operations were Cisco, Google, Lockheed Martin, NSA, USCYBERCOM, DISA, NASA, several US banks, and many other business corporations. NATO Article 5 Response UN Charter Article 51 allows states right of self-defense against armed attacks. NATO confirmed at Sept 2014 that Article 5 applies to armed cyber-attacks. NATO also…

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    In the paper, [1], the author introduced two kinds of topology attacks focus on the architecture of SDN and emphasized the weakness of the host tracking service and the link discovery service. And then, the paper provides the security extension, called Topoguard, for the Floodlight v0.9 controller. A. Two topology attacks The first attack as we mentioned, Host Location Hijacking Attack, is to send a fake request that the target host migrates to a new location trying to intercept packets and…

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