blocked as well. A common way to gain control over a remote system is by installing a small application on a target machine. A Trojan horse is an application that is hidden in some other type of content, such as a legitimate program. It can be used to create a new, secret account called a back door, or it can be used to run spyware, which collects user keystrokes for analysis. Trojan horses can also be used to infect and control affected systems, destroy and expose valuable company information, or use your
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at is McAfee.com, the portion of information we are looking at today is the virus definition, what it is a how it will affect you the consumer. One virus we will be looking at will be RDN/BackDoor-FBSA!a!EFA0D651938C. This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown
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CHAPTER 1 Vulnerabilities, Threats, and Attacks Upon completion of this chapter, you should be able to answer the following questions: ■ ■ What are the basics concepts of network security? What are some common network security vulnerabilities and threats? ■ ■ What are security attacks? What is the process of vulnerability analysis? Key Terms This chapter uses the following key terms. You can find the definitions in the glossary at the end of the book. Unstructured threats Structured
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could be a possible risk. The software can be suspicious, especially if the user downloaded it from the Internet. the software in question could lead to incoming viruses and worms that can affect our network. This can create holes in the security that has been set up. Configuration settings can lead a user to let in viruses and worms also. If the remote user does know how to set up their configuration settings on their machines than anything that they send or receive can be a potential risk, threat
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the deadly computer viruses that have been spreading lately, Weekend Update would like to remind you: when you link up to another computer, you’re linking up to every computer that that computer has ever linked up to. —Dennis Miller, Saturday Night Live, U.S. television show VIGNETTE Treatment of Sasser Worm Author Sends Wrong Message Unleashed in April 2004, the Sasser worm hit IT systems around the world hard and fast. Unlike most computer viruses before it, the Sasser worm didn’t spread through
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IMPORTANCE OF INFORMATION TECHNOLOGY SECURITY Importance of IT Security Table of Contents Introduction .................................................................................................................................................. 2 e-commerce Trends ...................................................................................................................................... 2 Risks ..........................................................................
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“Cyber-criminals,” like their non-virtual traditional criminal counterparts, seek opportunity and are attracted to vacuums in law enforcement. The news media is filled with reports of debilitating denial of service attacks, defaced web sites, and new computer viruses worming their way through the nation’s computers. However, there are countless other cyber-crimes that are not made public due to private industry’s reluctance to publicize its vulnerability and the government’s concern for security.[1] Along
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host system. Some of the more common forms are viruses, worms, Trojan horses, spam, spyware/adware, and bots. All of these malicious codes attempt to gain access to your system to degrade your ability to perform as normal. Viruses attempt to corrupt your system so it is unusable, but must be activated by the user accessing a program with the virus attached. Worms are similar to viruses but do not require a user to access the infected program. Trojan horse files are code hiding behind a false name
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they take measures to protect their computers and data from loss, damage, and misuse resulting from computer security risks. Antivirus programs are an effective way to protect a computer against viruses. An antivirus program protects a computer against viruses by identifying and removing any computer viruses found in memory, on storage media, or on incoming files.1 when you purchase a new computer, it often includes antivirus software. Antivirus programs work by scanning for programs that attempt to
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1. What is the main difference between a virus and a Trojan? A virus is a program that is capable of replicating with little or no user intervention, and the replicated programs also replicate further. There is typically a piece of code that causes an unexpected, usually malicious, event (payload) to occur. Viruses are often disguised as games or images with clever marketing titles. A Trojan horse is a program that either pretends to have, or is described as having, a set of useful or desirable
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