A common technique for luring e-mail users into opening virus-launching attachments is to send messages that would appear to be relevant or important to many of their potential recipients. One way of accomplishing this feat is to make the virus-carrying messages appear to come from some type of business entity retailing sites, UPS, FEDEX, CITIBANK or a major provider of a common service.

Here is a fraudulent e-mail claiming to be from FedEx regarding a package that could not be delivered. This mail asks the receiver to open an attachment in order to obtain the FEDEX tracking number for picking up the package. The attachment contained in this type of e-mail activates a virus.

Vendors send e-mails like this to their customers advising them not to open any files attached with the mail, as they do not include attachments.

Fraudulent e-mail and legit e-mail that arrives in your inbox contain the fedex.com as the sender of the mail.

How do you ensure if the e-mail is authentic and sent from fedex.com?

You just purchased the latest DELL computer, which comes pre-installed with Windows 7, McAfee antivirus software and a host of other applications. You want to connect Ethernet wire to your cable modem and start using the computer immediately. Windows is dangerously insecure when unpacked from the box, and there are a few things that you must do before you use it.

Your computer is infected by E-mail tracking and spying Trojan. This Trojan infects the computer with a single file – emos.sys

Which step would you perform to detect this type of Trojan?

In which part of OSI layer, ARP Poisoning occurs?
(exhibit)

What is the correct command to run Netcat on a server using port 56 that spawns command shell when connected?

Syslog is a standard for logging program messages. It allows separation of the software that generates messages from the system that stores them and the software that reports and analyzes them. It also provides devices, which would otherwise be unable to communicate a means to notify administrators of problems or performance.

What default port Syslog daemon listens on?

In Trojan terminology, what is required to create the executable file chess.exe as shown below?

What is the problem with this ASP script (login.asp)?

Wayne is the senior security analyst for his company. Wayne is examining some traffic logs on a server and came across some inconsistencies. Wayne finds some IP packets from a computer purporting to be on the internal network. The packets originate from 192.168.12.35 with a TTL of
15. The server replied to this computer and received a response from 192.168.12.35 with a TTL of

21. What can Wayne infer from this traffic log?

WWW wanderers or spiders are programs that traverse many pages in the World Wide Web by recursively retrieving linked pages. Search engines like Google, frequently spider web pages for indexing. How will you stop web spiders from crawling certain directories on your website?