ECCouncil EC0-350 - Ethical Hacking and Countermeasures V8

The following script shows a simple SQL injection. The script builds an SQL query by concatenating hard-coded strings together with a string entered by the user:

The user is prompted to enter the name of a city on a Web form. If she enters Chicago, the query assembled by the script looks similar to the following:

SELECT * FROM OrdersTable WHERE ShipCity = 'Chicago'

How will you delete the OrdersTable from the database using SQL Injection?

In which part of OSI layer, ARP Poisoning occurs?

How do you defend against Privilege Escalation?

Stephanie works as senior security analyst for a manufacturing company in Detroit. Stephanie manages network security throughout the organization. Her colleague Jason told her in confidence that he was able to see confidential corporate information posted on the external website http://www.jeansclothesman.com. He tries random URLs on the company 's website and finds confidential information leaked over the web. Jason says this happened about a month ago. Stephanie visits the said URLs, but she finds nothing. She is very concerned about this, since someone should be held accountable if there was sensitive information posted on the website.

Where can Stephanie go to see past versions and pages of a website?

You receive an e-mail with the following text message.

"Microsoft and HP today warned all customers that a new, highly dangerous virus has been discovered which will erase all your files at midnight. If there's a file called hidserv.exe on your computer, you have been infected and your computer is now running a hidden server that allows hackers to access your computer. Delete the file immediately. Please also pass this message to all your friends and colleagues as soon as possible."

You launch your antivirus software and scan the suspicious looking file hidserv.exe located in c:\windows directory and the AV comes out clean meaning the file is not infected. You view the file signature and confirm that it is a legitimate Windows system file "Human Interface Device Service".

What category of virus is this?

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?

In the context of Trojans, what is the definition of a Wrapper?

In Buffer Overflow exploit, which of the following registers gets overwritten with return address of the exploit code?

In what stage of Virus life does a stealth virus gets activated with the user performing certain actions such as running an infected program?

The SYN flood attack sends TCP connections requests faster than a machine can process them.

Attacker creates a random source address for each packet

SYN flag set in each packet is a request to open a new connection to the server from the spoofed IP address

Victim responds to spoofed IP address, then waits for confirmation that never arrives (timeout wait is about 3 minutes)

Victim's connection table fills up waiting for replies and ignores new connections

Legitimate users are ignored and will not be able to access the server

How do you protect your network against SYN Flood attacks?

What does ICMP (type 11, code 0) denote?

Jimmy, an attacker, knows that he can take advantage of poorly designed input validation routines to create or alter SQL commands to gain access to private data or execute commands in the database. What technique does Jimmy use to compromise a database?

Google uses a unique cookie for each browser used by an individual user on a computer. This cookie contains information that allows Google to identify records about that user on its database. This cookie is submitted every time a user launches a Google search, visits a site using AdSense etc. The information stored in Google's database, identified by the cookie, includes

Everything you search for using Google

Every web page you visit that has Google Adsense ads

How would you prevent Google from storing your search keywords?

You are the security administrator of Jaco Banking Systems located in Boston. You are setting up e-banking website (http://www.ejacobank.com) authentication system. Instead of issuing banking customer with a single password, you give them a printed list of 100 unique passwords. Each time the customer needs to log into the e-banking system website, the customer enters the next password on the list. If someone sees them type the password using shoulder surfing, MiTM or keyloggers, then no damage is done because the password will not be accepted a second time. Once the list of 100 passwords is almost finished, the system automatically sends out a new password list by encrypted e-mail to the customer.

You are confident that this security implementation will protect the customer from password abuse.

Two months later, a group of hackers called "HackJihad" found a way to access the one-time password list issued to customers of Jaco Banking Systems. The hackers set up a fake website (http://www.e-jacobank.com) and used phishing attacks to direct ignorant customers to it. The fake website asked users for their e-banking username and password, and the next unused entry from their one-time password sheet. The hackers collected 200 customer 's username/passwords this way. They transferred money from the customer's bank account to various offshore accounts.

Your decision of password policy implementation has cost the bank with USD 925, 000 to hackers. You immediately shut down the e-banking website while figuring out the next best security solution

What effective security solution will you recommend in this case?

An attacker has successfully compromised a remote computer. Which of the following comes as one of the last steps that should be taken to ensure that the compromise cannot be traced back to the source of the problem?

BankerFox is a Trojan that is designed to steal users' banking data related to certain banking entities.

When they access any website of the affected banks through the vulnerable Firefox 3.5 browser, the Trojan is activated and logs the information entered by the user. All the information entered in that website will be logged by the Trojan and transmitted to the attacker's machine using covert channel.

BankerFox does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer.

What is the most efficient way an attacker located in remote location to infect this banking Trojan on a victim's machine?

This IDS defeating technique works by splitting a datagram (or packet) into multiple fragments and the IDS will not spot the true nature of the fully assembled datagram. The datagram is not reassembled until it reaches its final destination. It would be a processor-intensive task for IDS to reassemble all fragments itself, and on a busy system the packet will slip through the IDS onto the network. What is this technique called?

What type of port scan is shown below?

How would you describe a simple yet very effective mechanism for sending and receiving unauthorized information or data between machines without alerting any firewalls and IDS's on a network?

Which of the following algorithms can be used to guarantee the integrity of messages being sent, in transit, or stored? (Choose the best answer)