1. Trojan Horse And Salami Attack Name:NurRidwan bin Kuwat Group Member:Tonyak Albert Mani CrishtoperakSumping Many ak Thomas

2. What is Trojan Horse? Trojan Horses are a type of computer program that appear to perform a certain function, but actually perform other, often malicious, actions. They differ from traditional viruses because they do not have the means to automatically replicate. Trojan horses can be classified based on how they breach and damage systems. They are primarily used for unauthorized remote access, mass-mailing spam, data destruction, file transfer, toll-line dialing, and denial-of-service attacks. http://articles.winferno.com/antivirus/trojan-horse/

6. How Salami Attack? In the salami technique, cyber criminals steal money or resources a bit at a time. The key here is to make the alteration so insignificant that in a single case it would go completely unnoticed. E.g. a bank employee inserts a program, into the bank’s servers, that deducts a small amount of money (say Rs. 5 a month) from the account of every customer. No account holder will probably notice this unauthorized debit, but the cyber criminal will make a sizable amount of money every month. http://blog.appinonline.com/hacking/salami-attack.htm

7. What is Virus? In computers, a virus is a program or programming code that replicates by being copied or initiating its copying to another program, computer boot sector or document. Viruses can be transmitted as attachments to an e-mail note or in a downloaded file, or be present on a diskette or CD. The immediate source of the e-mail note, downloaded file, or diskette you've received is usually unaware that it contains a virus. Some viruses wreak their effect as soon as their code is executed; other viruses lie dormant until circumstances cause their code to be executed by the computer. Some viruses are benign or playful in intent and effect ("Happy Birthday, Ludwig!") and some can be quite harmful, erasing data or causing your hard disk to require reformatting. A virus that replicates itself by resending itself as an e-mail attachment or as part of a network message is known as a worm. http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci213306,00.html

8. What Is Worm? In a computer, a worm is a self-replicating virus that does not alter files but resides in active memory and duplicates itself. Worms use parts of an operating system that are automatic and usually invisible to the user. It is common for worms to be noticed only when theiruncontrolled replication consumes system resources, slowing orhalting other tasks. http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci213386,00.html

10. Chat channels are the main target and the same infection/spreading method is used as above - sending infected files or links to infected websites. Infected file sending is less effective as the recipient needs to confirm receipt, save the file and open it before infection will take place.

12. File-sharing Networks Worms

13. Copies itself into a shared folder, most likely located on the local machine. The worm will place a copy of itself in a shared folder under a harmless name. Now the worm is ready for download via the P2P network and spreading of the infected file will continue.

14. http://virusall.com/computer%20worms/worms.php