Vinay
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This document discusses Trojan horses, which are malicious programs that masquerade as legitimate software. It defines Trojans, explains how they work by tricking users into installing programs that then allow attackers access, and categorizes common types like remote access and data sending Trojans. The document also lists some notable Trojans like Zeus and Flashback, describes how Trojans are used for illegal activities like data theft, and provides tips for preventing Trojan infections like using firewalls and avoiding suspicious downloads.
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This document discusses Trojan horses, which are a type of malware that disguises itself as legitimate software. It begins with an overview of Trojans, explaining that they masquerade as benign programs but install harmful malware. It then provides examples of common Trojan types, signs of infection, historical examples like Zeus and Emotet, and recommendations for prevention such as using antivirus software and avoiding suspicious links and attachments.
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1) A Trojan horse is a type of malicious software that appears legitimate but can take control of a computer. It tricks users into installing it, after which it can steal data, disrupt systems, or perform other harmful actions.
2) There are different types of Trojans, including remote access Trojans, data-sending Trojans, and destructive Trojans. Common Trojan malware includes downloaders, game thieves, infostealers, and SMS Trojans.
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describe the differences and similarities between viruses, worms, an.pdf
describe the differences and similarities between viruses, worms, and Trojan horses. Provide an
example of at least one of these and describe that damage that can be done when a person or
corporation is infected.
Solution
Lets me make it clear actually what these are first and then we move to the diffrences and
similarities
A computer virus connects itself to a program or record empowering it to spread starting with
one PC then onto the next, leaving contamination as it travels. Like a human infection, a PC
virus can extend in seriousness: some may bring about just somewhat irritating impacts while
others can harm your hardware, programming or records. All viruses are joined to an executable
record, which implies the infection may exist on your PC yet it really can\'t contaminate your PC
unless you run or open the pernicious program.
A worm is like an virus by outline and is thought to be a sub-class of an infection. Worms spread
from PC to PC, yet not at all like an virus, it has the capacity to go with no human activity. A
worm exploits document or data transport includes on your framework, which is the thing that
permits it to travel unaided.
A Trojan Horse is loaded with as much cunning as the fanciful Trojan Horse it was named after.
The Trojan Horse, at first look will seem, by all accounts, to be valuable software yet will really
do harm once introduced or keep running on your PC. Those on the less than desirable end of a
Trojan Horse are normally deceived into opening them since they give off an impression of
being getting true blue programming or documents from a honest to goodness source.
Now I will Focus on the differences between Viruses, Worms and Torjan Horses
On the basis of its mode of spread
A virus attach itself to an executable file and then require a human to propogate, a worm does
not require a human action to spread,torjan horse does not replicates itself and require human
input to take into action.
similarity is that they all are malicious programs that can cause damage to your computer.
Examples:-
VIRUSES
WORMS
Torjan.
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This document discusses Trojan horse malware, including its definition, objectives, types, techniques, and methods of implementation and prevention. It defines a Trojan horse as malware that appears harmless but performs malicious functions. It provides examples of how Trojans can be used to gain unauthorized access to systems and describes common types. The document also gives an example of how a keylogger Trojan could be implemented to steal banking passwords and outlines various prevention strategies like antivirus software, firewalls, and education.
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This document discusses Trojan horse viruses. It defines a Trojan horse as malicious software that disguises itself as a legitimate program to gain access to a system. It notes that Trojans can install keyloggers or spread to others in a user's contacts. The document provides tips to avoid infection like verifying downloads and using antivirus software. It recommends tools like SmitFraudFix and Ewido to remove Trojans from an infected system.
Trojan Horse Presentation
A Trojan horse is a type of malware that disguises itself as legitimate software to trick users into installing it. There are two main types: programs with malicious code inserted by hackers, and standalone files masquerading as something harmless like a game. Trojans can carry various payloads like time bombs, logic bombs, or droppers. To avoid infection, users should only download software from trusted sources, use antivirus tools, and avoid unexpected file attachments.
Introduction to Cyber Security
This document discusses the evolution of cyber security and its growing importance. It covers how cyber security now impacts individuals, businesses, and geopolitics. The document also defines key cyber security terms and concepts, examines perspectives like threat management and information assurance, and argues that cyber security must take an integrated, holistic approach going forward. It concludes by noting that with modern society's growing digital interconnectedness, not taking a comprehensive view of cyber security may be the biggest risk.
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Cybercrime involves using computers or the internet to steal identities or import illegal programs. The first recorded cybercrime took place in 1820. There are different types of cybercrimes such as hacking, denial of service attacks, computer viruses, and software piracy. Cybercrimes also include using computers to attack other systems, commit real-world crimes, or steal proprietary information. Common cyber attacks include financial fraud, sabotage of networks, theft of data, and unauthorized access. Internet security aims to establish rules to protect against such attacks by using antivirus software, firewalls, and updating security settings regularly.
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Cybersecurity involves protecting individuals, businesses, and critical infrastructure from threats arising from computer and internet use. It addresses both external attacks by remote agents exploiting vulnerabilities, as well as insider threats from valid users. Cybersecurity deals with a range of technical and human factors, as vulnerabilities usually stem from a mix of these. Key concerns include malware, cyber attacks aiming to cause damage or steal data, and accidental incidents that can also lead to losses.
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This document discusses cyber crime and provides examples of different types of cyber crimes including credit card fraud, identity theft, viruses, computer intrusions, malware, and distributed denial of service (DDoS) attacks. It describes common cyber crimes like theft of services and provides details on specific crimes like the Melissa virus. It also discusses the challenges of detecting new malware variants and protecting against DDoS attacks.
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Cyber crime is a growing problem in India. Some common cyber crimes reported in India include phishing, hacking of government websites, and identity theft. India ranks 11th globally for reported cyber crimes, which are increasing due to factors like rapid growth of internet users. Common cyber crimes involve unauthorized access to systems, data theft and alteration, and using computers to enable other illicit activities. While laws like the IT Act 2000 have been enacted to tackle cyber crimes, enforcement remains a challenge as only a small percentage of crimes are reported. Techniques like antivirus software, firewalls, and educating users can help address the problem.
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Cyber crime involves unlawful activities using computers and the internet. The document categorizes cyber crimes as those using computers to attack other computers or as tools to enable real-world crimes. It provides examples of various cyber crimes like hacking, child pornography, viruses, and cyber terrorism. It stresses the importance of cyber security to defend against attacks through prevention, detection and response. The document advises safety tips like using antivirus software, firewalls, and strong passwords. India's cyber laws address both traditional crimes committed online and new crimes defined in the Information Technology Act.
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This document discusses Trojan horses, which are a type of malware that disguises itself as legitimate software. It begins with an overview of Trojans, explaining that they masquerade as benign programs but install harmful malware. It then provides examples of common Trojan types, signs of infection, historical examples like Zeus and Emotet, and recommendations for prevention such as using antivirus software and avoiding suspicious links and attachments.
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This document discusses Trojan horses, including their purpose and usage. Common Trojans like Netbus and Subseven are mentioned. The document notes that Trojans do not replicate like viruses but instead facilitate unauthorized access. They can be used to hack into targeted systems and perform actions like using the machine as a botnet node or stealing data and passwords. Recent Trojans take advantage of security flaws in browsers. While antivirus software can help detect some Trojans, they remain a persistent threat, and proper computer security practices are important to prevent infection.
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This document provides information about viruses, worms, and Trojans, including their definitions, histories, and how to prevent attacks. Viruses copy themselves and travel to other programs/files to spread, while worms are self-contained programs that can spread functional copies of themselves across networks. Trojans masquerade as useful software but cause damage once installed. Examples of recent major viruses, worms, and Trojans throughout history are also outlined, along with their harmful effects and methods of detection and prevention. The key differences between viruses, worms, and Trojans are also summarized.
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This document discusses computer infections like viruses, worms, and trojans. It describes viruses as programs that can copy themselves and infect other computers. Worms search for and implant code onto other systems through networks. Trojans appear harmless but later present malicious functions. The document also outlines protections like antivirus software, firewalls, and user education recommendations.
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This document discusses Trojan malware and how to protect against it. It describes Trojans as dangerous viruses created by hackers to steal information like credit cards, emails, passwords, and files. Trojans can give hackers backdoor access to computers. They are often spread through email attachments and files. The document provides tips on protecting against Trojans such as using antivirus software, deleting unnecessary files, and avoiding unknown links or USB devices. It also outlines different types of hackers including black hat, gray hat, and white hat hackers.
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The document discusses network security and its importance in protecting networks and data from breaches and threats. It defines network security as involving access control, antivirus software, firewalls, encryption, and other measures. It then provides background information on security threats, both internal and external, and physical and data attacks. Types of malware like viruses, worms, and trojan horses are explained along with examples. The role of antivirus software in virus protection is also covered.
describe the differences and similarities between viruses, worms, an.pdf
describe the differences and similarities between viruses, worms, and Trojan horses. Provide an
example of at least one of these and describe that damage that can be done when a person or
corporation is infected.
Solution
Lets me make it clear actually what these are first and then we move to the diffrences and
similarities
A computer virus connects itself to a program or record empowering it to spread starting with
one PC then onto the next, leaving contamination as it travels. Like a human infection, a PC
virus can extend in seriousness: some may bring about just somewhat irritating impacts while
others can harm your hardware, programming or records. All viruses are joined to an executable
record, which implies the infection may exist on your PC yet it really can\'t contaminate your PC
unless you run or open the pernicious program.
A worm is like an virus by outline and is thought to be a sub-class of an infection. Worms spread
from PC to PC, yet not at all like an virus, it has the capacity to go with no human activity. A
worm exploits document or data transport includes on your framework, which is the thing that
permits it to travel unaided.
A Trojan Horse is loaded with as much cunning as the fanciful Trojan Horse it was named after.
The Trojan Horse, at first look will seem, by all accounts, to be valuable software yet will really
do harm once introduced or keep running on your PC. Those on the less than desirable end of a
Trojan Horse are normally deceived into opening them since they give off an impression of
being getting true blue programming or documents from a honest to goodness source.
Now I will Focus on the differences between Viruses, Worms and Torjan Horses
On the basis of its mode of spread
A virus attach itself to an executable file and then require a human to propogate, a worm does
not require a human action to spread,torjan horse does not replicates itself and require human
input to take into action.
similarity is that they all are malicious programs that can cause damage to your computer.
Examples:-
VIRUSES
WORMS
Torjan.
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Malware-Trojan horse virus
Malware can be defined as any file or program that is introduced to a computer with the intention of harming the user. The harm to the user can be through interfering with his use of the compute, unauthorized access to his data, locking the user out of his computer and also spying on the user’s activity. There are several types of malware and they include ransom ware, Trojan horses, computer viruses, worms and spyware (White, Fisch & Pooch, 2017). For this particular assignment, I will focus on Trojan horse virus. The name Trojan horse comes from the famous Greek story, where Greek soldiers were able to take down the city of Troy after they sneaked into the city inside a wooden horse that was guised as a gift to the people of Troy. Just like the story the Trojan horse virus disguises itself as a legitimate program however the program provides unauthorized access into the system most of the time to hackers.
Most of the time, Trojan horses gain access to a secured system through social engineering. Most of the time, Trojan horse viruses are introduced into a system by duping a user into executing an attachment on an email guised to be unsuspicious. They can also be introduced via social media where users are tricked into clicking on fake advertisements or advertisements that offer fake rewards. Once the links or attachments are clicked on, a Trojan horse virus is introduced. Trojan horse viruses can allow an attacker to have access to a user’s personal information and other forms of data. Trojan horse viruses can affect other devices on the network through infection caused by the introduction of the first Trojan horse; most ransom ware is introduced through Trojan horse viruses (Wang, Lorch & Parno, 2016). In addition, through the use of Trojan horse viruses, attackers can modify data, copy data, block data, delete data and generally disrupt or distort the performance and operations of targeted computers or devices in a network.
Steps of mitigating a Trojan horse virus attack
The first step in mitigating a Trojan horse virus attack is the installation of effective anti-malware software or what is commonly referred to as an anti-virus. The anti-malware will detect as well as prevent any Trojan horse virus attack on a computer or a network. The second step in mitigating Trojan horse virus attacks is the installation of the latest available patches of the operating system in use. The third step is proper scanning of all external devices that are introduced to a computer or a network (Rader & Rahman, 2015). The fourth step is through the cautioning on the execution of any program th.
Case study
Trojans are malicious software that masquerade as legitimate programs to gain access to systems and steal information without the owner's consent. They function by tricking users into installing programs that then allow remote access. Trojans can delete or change files, steal passwords and bank details, run or end processes, and erase hard drives. They typically connect via a client-server model, using direct or inverse connections to bypass firewalls. Common infection methods include downloading infected programs, visiting malicious websites, and opening attachments in emails. Antivirus software can help identify and remove Trojans to prevent further harm.
Trojan horse nitish nagar
A Trojan horse is a type of malware that masquerades as legitimate software to trick users into installing it. It can then perform harmful actions like stealing personal information, corrupting files, or installing additional malware. Trojans are spread through attachments, downloads from untrusted websites, and instant messages. Common goals of attackers are to steal credit cards, passwords, work files, or install backdoors on infected systems. Users should be wary of unsolicited files from untrusted sources.
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This document provides information about computer viruses including what they are, where they come from, and why they exist. It defines a computer virus as a type of software that copies itself into other programs. Viruses can slow computers down or allow monitoring of user activity. The document discusses the history of viruses dating back to the first "Creeper" virus in the 1970s. It also outlines different types of malware like viruses, worms, and Trojan horses while distinguishing between their characteristics. Finally, it provides tips on how viruses are contracted and recommends installing antivirus software and being cautious of emails and external devices to prevent infections.
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Vinay
- 1. SREENIDHI INSTITUTE OF SCIENCE AND TECHNOLOGY TROJAN HORSE By, S.Vinay Computer Science and Engineering Department 14311A0557
- 2. TABLE OF CONTENTS: INTRODUCTION ETHYMOLOGY TYPES OF TROJANS HOW TROJAN WORKS PURPOSE OF TROJAN NOTABLE TROJANS PREVENTION REFERENCES
- 3. INTRODUCTION: •A destuctive program that installs malicious softwares in the guise of doing something else. •Trojans are different from virus. •Malicious programs are classified as Trojans if they do not attempt to inject themselves into other files or otherwise propagate themselves
- 4. •A computer may host a Trojan via a malicious program that a user is duped into executing.
- 5. ETHYMOLOGY •The term comes from the a Greek story of the Trojan War,in which the Greeks hide in the wooden horse inorder to breach the walls of Troy.
- 6. HOW TROJANS WORK: •A program with Trojan appears to be legitimate to the user,but as user interacts with it ,it begins doing various unnecessary actions •Now the Trojan creates a safe passage for the attacker to the user and makes the users computer vulnerable. •Trojan horses do not replicate themselves but they can be just as destructive as viruses are.
- 7. TYPES OF TROJANS: Trojan horses are broken down in classification based on how they breach systems and the damage they cause. The seven main types of Trojan horses are: •Remote Access Trojans •Data Sending Trojans •Destructive Trojans •Proxy Trojans •FTP Trojans •security software disabler Trojans •denial-of-service attack (DoS) Trojans
- 8. PURPOSE OF TROJANS: •Crashing the computer •Data corruption •Formatting disks, destroying all contents •Electronic money theft •Modification or deletion of files •Watching the user's screen •Using the infected computer as proxy for illeagal activities.
- 9. NOTABLE TROJANS: •Netbus Advance System •Subseven or Sub7 •Back Orifice •Beast •Zeus •Flashback Trojan •ZeroAccess •Koobface •Vundo
- 10. PREVENTION: •Avoid opening unsolicited email from unknown senders. •Avoid downloading and installing programs unless the publisher is trusted. •Use firewall to block all unsolicited connections. •Use fully updated anti virus program whenever you are using the internet.
- 11. • http://www.ehow.com • http://en.wikipedia.org • http://www.webopedia.com