Ids 007 trojan horse
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Trojans are malware that disguise themselves to gain access to a user's computer without their awareness. They spread by tricking users into downloading email attachments or clicking on fake advertisements. Once installed, they can allow hackers to access personal information, delete files, or use the computer as an anonymizing proxy for illegal activities. Examples include Zeus, which steals banking credentials, and CryptoLocker ransomware, which encrypts files until a ransom is paid. Trojans demonstrate that no system is immune, as shown by the Mac Flashback Trojan.
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CG02 Computer Graphic Systems.pptx
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Ds04 abstract data types (adt) jyoti lakhanijyoti_lakhani An abstract data type (ADT) defines a pen as a collection of related data items including type, brand, color, and price along with operations such as write. An ADT describes what data and operations are involved without specifying how they are implemented, focusing on the essential properties and behaviors. A data structure then provides the physical implementation of an ADT, realizing how the data and operations are structured and processed.
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Ids 007 trojan horse
- 1. Trojan
- 2. A malware which misleads users of its true intent. The term is derived from the Ancient Greek story of Trojan Horse that led to the fall of the city of Troy Trojans are generally spread by – - a user is duped into executing an email attachment disguised to appear not suspicious, (e.g., a routine form to be filled in) - by clicking on some fake advertisement Their payload act as a backdoor, contacting a controller which can then have unauthorized access to the affected computer. Trojan
- 3. Unlike computer viruses and worms, trojans generally do not attempt to inject themselves into other files Trojan viruses, in this way, may require interaction with a malicious controller (not necessarily distributing the trojan) to fulfill their purpose. It is possible for those involved with trojans to scan computers on a network to locate any with a trojan installed, which the hacker can then control, creating a so called botnet. A botnet is a number of Internet-connected devices, each of which is running one or more bots. Botnets can be used to perform Distributed Denial-of- Service (DDoS) attacks, steal data, send spam, and allow the attacker to access the device and its connection. The owner can control the botnet using command and control (C&C) software Trojans may allow an attacker to access users' personal information such as banking information, passwords, or personal identity. It can also delete a user's files or infect other devices connected to the network. Ransomware attacks are often carried out using a trojan.
- 4. Some trojans take advantage of a security flaw in older versions of Internet Explorer and Google Chrome to use the host computer as an anonymizer proxy to effectively hide Internet usage, enabling the controller to use the Internet for illegal purposes while all potentially incriminating evidence indicates the infected computer or its IP address. An anonymizer proxy is a tool that attempts to make activity on the Internet untraceable. It is a proxy server computer that acts as an intermediary and privacy shield between a client computer and the rest of the Internet. It accesses the Internet on the user's behalf, protecting personal information of the user by hiding the client computer's identifying information
- 5. According to a survey conducted by BitDefender from January to June 2009, "trojan-type malware is on the rise, accounting for 83% of the global malware detected in the world." Trojans have a relationship with worms, as they spread with the help given by worms and travel across the internet with them. The host's computer may or may not show the internet history of the sites viewed using the computer as a proxy. The first generation of anonymizer trojan horses tended to leave their tracks in the page view histories of the host computer. Later generations of the trojan tend to "cover" their tracks more efficiently.
- 6. Examples of Trojan Horse Virus Infection Trojan Infection Exploit Backdoor Rootkit Trojan Banker Trojan DDoS Trojan Downloa der Trojan Dropper
- 7. Remote Access Trojan Data Sending Trojan Destructive Trojan Proxy Trojan FTP Trojan Security Software Disabler Trojan DoS Attack Trojan Types of Trojan
- 8. Victim Attacker TCP Trojan Server Trojan Client Components of Trojan Horse
- 9. Zeus Zeus is a Trojan horse made to infect Windows computers so that it will perform various criminal tasks. The most common of these tasks are usually man-in-the-browser keylogging and form grabbing. The majority of computers were infected either through drive-by downloads or phishing scams. First identified in 2009, it managed to compromise thousands of FTP accounts and computers from large multinational corporations and banks such as Amazon, Oracle, Bank of America, Cisco, etc. Controllers of the Zeus botnet used it to steal the login credentials of social network, email and banking accounts.
- 10. NetBus
- 11. Back Orifice XP
- 12. Sub Seven (Sub7)
- 13. Beast
- 14. CryptoLocker CryptoLocker is a form of Trojan horse ransomware targeted at computers running Windows. It uses several methods to spread itself, such as email, and once a computer is infected, it will proceed to encrypt certain files on the hard drive and any mounted storage connected to it with RSA public key cryptography. While it is easy enough to remove the malware from the computer, the files will still remain encrypted. The only way to unlock the files is to pay a ransom by a deadline. If the deadline is not met, the ransom will increase significantly or the decryption keys deleted. The ransom usually amount to $400 in prepaid cash or bitcoin.
- 16. Flashback • One of the few Mac malware • It showed that Macs are not immune. • The Trojan was first discovered in 2011 by antivirus company Intego as a fake Flash install. • In its newer incarnation, a user simply needs to have Java enabled. It propagates itself by using compromised websites containing JavaScript code that will download the payload. Once installed, the Mac becomes part of a botnet of other infected Macs.