LAB 7 – PING OF DEATH
7.0. INTRODUCTION
The Ping of Death (POD) is a type of denial of service attack in which the attacker attempts to crash, destabilize, or freeze the targeted computer or service by sending malformed or oversized packets using a simple ping command. (Incapsula, n.d.)
This kind of denial of service attack was mainly used in legacy systems because they wouldn’t know what to do with a packet that’s larger than the standard IPv4 packet size of 65,537 when they received it.
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In this lab, we explore how the POD is done by setting up a virtual environment running Win95 as the victim and four others as an attackers.
7.1. REQUIREMENTS/OBJECTIVES
To run and observe the effects of a denial of service attack
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I started to ping the POD server from all the machines, each having 10 instances of the command prompt running. As I continued to increase number of ping instances, I noticed that the processor usage on the POD server was increasing and increasing until it came to 100% when all the attacking machines where pinging at the same time. Below is figure 16 showing the graph.
Figure 16 100% System Performance Rate
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Once the POD server was overwhelmed, the machine became very slow. Its response time to any command was very long almost nonexistent. The system froze, because I couldn’t even move the mouse. After a few minutes though, I noticed that some pings started timing out on the attacking machines.
7.3. PERSONAL EVALUATION/CONCLUSION
This kind of attack if performed on a website means it would bring the website down and therefore no one would have access to it. It poses great danger to the users and stakeholders of the website for it to be down, especially one that manages payment transactions.
This kind of DOS attack although common among legacy systems is also possible now with the attack called ping flood, which sends ICMP (internet control message protocol) via ping without waiting for a
I have to pull two alleles (two straws) from the bag to represent one fish because fishes like humans get two alleles one from their father and one from their mother.
2.1 What are the coordinates for the White House in Degrees, Minutes and Seconds? 38°53'51.47"N 77° 2'11.64"W
It is an attack, the attacker continuously trying too many passwords hoping that it was correct.
The two limitations are checking packets one at a time, and checking only some fields of the internet and transport headers. Checking packets one at a time is bad because packets will be examined one at a time, and cannot stop attacks such as DoS. Checking only some fields of the internet and transport headers is bad because will not examine all field of the internet and transport header fields, and cannot stop all attacks such as utilized attack.
In this lab, we used Transmission Control Protocol (TCP) which is a connection oriented protocol, to demonstrate congestion control algorithms. As the name itself describes, these algorithms are used to avoid network congestion. The algorithms were implemented in three different scenarios i.e. No Drop Scenario, Drop_Fast Scenario and Drop_NoFast Scenario.
The attacks targets the routing information which is being exchanged among nodes. The data in the table is altered and attacker then attracts or repel network traffic, generate false error messages, increase latency or even partition the network. The next node generally depends on the previous node(s) table to create routing paths.
Advanced persistent threat (APT) actors conducting espionage are known to gain access to secure systems by compromising less secure systems, elevating privileges, and traversing the network.
July-Widespread deployment of DDoS attacks based on a tool known as "trinoo" via various RPC related vulnerabilities. Many of the initial deployments were done manually, with intruders carefully testing and selecting hosts.
It seems that DOS attacks and other forms of cyber attacks are not under Computer misuse Act legislation ( misinformation and ignorance from many sources such as some webs of IT security specialists) but after consultation with an international law firm that doubt was resolved,and Compuer Misuse Act encompasses a wide range of activities including DOS attacks.
...stealing the data and hacking. The attacker sends botmaster sends attack commands to Bolts. A bolt then attacks the victims system. Boltmaster can update the Bolts remotely. (Panko, 2009).
attempt to force a network offline and unavailable to its intended users. This process is typically performed by flooding a network with communication requests until the server cannot respond to the traffic, thus making the server go offline and become available. This process is relatively simple to perform to the average person through online programs. Since it is so easy perform, it has become a rising issue simply because anyone has the ability to hack into various servers. One example in recent news of DDoS attacks comes from Riot Games, developer of the popular online multiplayer video game League of Legends. After a month of inconsistency with their server stability and frequent shut downs, Riot Games reported that within the l...
Having first appeared in Russia in 2005, referred as Winlock, that successfully scammed over £10m from unsuspecting victims before the Russian authorities arrested 10 individuals for involvement in such hackings in 2010, however it hasn’t stop the growing number of the problem. With such profitable money to obtain, perpetrators have discovered new ways to spread the malware and to cash-in at the expense of victims.
Society has become ever-increasingly dependent upon technology, more specifically, computers to conduct personal and business transactions and communications. Consequently, criminals have targeted these systems to conduct information and cyber warfare, which can include politically motivated attacks and to profit through ill-gotten means. In an article written by Koblentz and Mazanec (2013), cyber warfare is the act of disabling an enemy’s ability to use or obtain information, degrade its ability to make decisions, and to command its military forces. Additionally, information warfare is composed of cyber warfare and related to the protection, disruption, destruction, denial, or manipulation of information in order to gain a benefit through the technologies (Taddeo, 2012). Accordingly, as technology becomes readily available to various entities, the ability to conduct or perform warfare through technological means is multiplying.
Without proper protection, any part of any network can be susceptible to attacks or unauthorized activity. Routers, switches, and hosts can all be violated by professional hackers, company competitors. In fact, according to several studies, more than half of all network attacks are waged internally. To determine the best ways to protect against attacks, we should understand the many types of attacks that can be instigated and the damage that these attacks can cause to data. The most common types of attacks include Denial of Service (DoS), password, an...
A cyber crime called 'Bot Networks', wherein spamsters and other perpetrators of cyber crimes remotely take control of computers without the users realizing it, is increasing at an alarming rate. Computers get linked to Bot Networks when users unknowingly download malicious codes such as Trojan horse sent as e-mail attachments. Such affected computers, known as zombies, can work together whenever the malicious code within them get activated, and those who are behind the Bot Networks attacks get the computing powers of thousands of systems at their disposal.