You are working as Computer Forensics investigator and are called by the owner of an accounting firm to investigate possible computer abuse by one of the firms employees. You meet with the owner of the firm and discover that the company has never published a policy stating that they reserve the right to inspect their computing assets at will.
What do you do?
You are working as a Computer forensics investigator for a corporation on a computer abuse case. You discover evidence that shows the subject of your investigation is also embezzling money from the company. The company CEO and the corporate legal counsel advise you to contact law enforcement and provide them with the evidence that you have founD. The law enforcement officer that responds requests that you put a network sniffer on your network and monitor all traffic to the subjects computer. You inform the officer that you will not be able to comply with that request because doing so would:
Hackers can gain access to Windows Registry and manipulate user passwords, DNS settings, access rights or others features that they may need in order to accomplish their objectives. One simple method for loading an application at startup is to add an entry (Key) to the following Registry Hive:
Which Intrusion Detection System (IDS) usually produces the most false alarms due to the unpredictable behaviors of users and networks?
You are working for a local police department that services a population of 1,000,000 people and you have been given the task of building a computer forensics laB. How many law-enforcement computer investigators should you request to staff the lab?
You work as an IT security auditor hired by a law firm in Boston to test whether you can gain access to sensitive information about the company's clients. You have rummaged through their trash and found very little information. You do not want to set off any alarms on their network, so you plan on performing passive footprinting against their Web servers. What tool should you use?
Printing under a Windows Computer normally requires which one of the following files types to be created?
Volatile Memory is one of the leading problems for forensics. Worms such as code Red are memory resident and do write themselves to the hard drive, if you turn the system off they disappear. In a lab environment, which of the following options would you suggest as the most appropriate to overcome the problem of capturing volatile memory?
The ____________________ refers to handing over the results of private investigations to the authorities because of indications of criminal activity.
One way to identify the presence of hidden partitions on a suspect‟s hard drive is to:
One technique for hiding information is to change the file extension from the correct one to one that might not be noticed by an investigator. For example, changing a .jpg extension to a .doc extension so that a picture file appears to be a document. What can an investigator examine to verify that a file has the correct extension?
A law enforcement officer may only search for and seize criminal evidence with _____________, which are facts or circumstances that would lead a reasonable person to believe a crime has been committed or is about to be committed, evidence of the specific crime exists and the evidence of the specific crime exists at the place to be searcheD.
A state department site was recently attacked and all the servers had their disks eraseD. The incident response team sealed the area and commenced investigation. During evidence collection they came across a zip disks that did not have the standard labeling on it. The incident team ran the disk on an isolated system and found that the system disk was accidentally eraseD. They decided to call in the FBI for further investigation. Meanwhile, they short listed possible suspects including three summer interns. Where did the incident team go wrong?
John and Hillary works at the same department in the company. John wants to find out Hillary's network password so he can take a look at her documents on the file server. He enables Lophtcrack program to sniffing mode. John sends Hillary an email with a link to Error! Reference source not found.
What information will he be able to gather from this?
On Linux/Unix based Web servers, what privilege should the daemon service be run under?
You are the network administrator for a small bank in Dallas, Texas. To ensure network security, you enact a security policy that requires all users to have 14 character passwords. After giving your users 2 weeks notice, you change the Group Policy to force 14 character passwords. A week later you dump the SAM database from the standalone server and run a password-cracking tool against it. Over 99% of the passwords are broken within an hour. Why were these passwords cracked so quickly?
A packet is sent to a router that does not have the packet destination address in its route table, how will the packet get to its properA packet is sent to a router that does not have the packet? destination address in its route table, how will the packet get to its proper destination?
Melanie was newly assigned to an investigation and asked to make a copy of all the evidence from the compromised system. Melanie did a DOS copy of all the files on the system. What would be the primary reason for you to recommend a disk imaging tool?
Harold is a web designer who has completed a website for ghttech.net. As part of the maintenance agreement he signed with the client, Harold is performing research online and seeing how much exposure the site has received so far. Harold navigates to google.com and types in the following search.
What will this search produce?
In a virtual test environment, Michael is testing the strength and security of BGP using multiple routers to mimic the backbone of the Internet. This project will help him write his doctoral thesis on "bringing down the Internet". Without sniffing the traffic between the routers, Michael sends millions of RESET packets to the routers in an attempt to shut one or all of them down. After a few hours, one of the routers finally shuts itself down. What will the other routers communicate between themselves?
You are running known exploits against your network to test for possible vulnerabilities. To test the strength of your virus software, you load a test network to mimic your production network. Your software successfully blocks some simple macro and encrypted viruses. You decide to really test the software by using virus code where the code rewrites itself entirely and the signatures change from child to child, but the functionality stays the same. What type of virus is this that you are testing?
Terri works for a security consulting firm that is currently performing a penetration test on First National Bank in Tokyo. Terri's duties include bypassing firewalls and switches to gain access to the network. Terri sends an IP packet to one of the company's switches with ACK bit and the source address of her machine set. What is Terri trying to accomplish by sending this IP packet?
You are carrying out the last round of testing for your new website before it goes live. The website has many dynamic pages and connects to a SQL backend that accesses your product inventory in a database. You come across a web security site that recommends inputting the following code into a search field on web pages to check for vulnerabilities:
When you type this and click on search, you receive a pop-up window that says:
"This is a test."
What is the result of this test?
Jonathan is a network administrator who is currently testing the internal security of his network. He is attempting to hijack a session, using Ettercap, of a user connected to his Web server. Why will Jonathan not succeed?
After attending a CEH security seminar, you make a list of changes you would like to perform on your network to increase its security. One of the first things you change is to switch the RestrictAnonymous setting from 0 to 1 on your servers. This, as you were told, would prevent anonymous users from establishing a null session on the server. Using Userinfo tool mentioned at the seminar, you succeed in establishing a null session with one of the servers. Why is that?
Michael works for Kimball Construction Company as senior security analyst. As part of yearly security audit, Michael scans his network for vulnerabilities. Using Nmap, Michael conducts XMAS scan and most of the ports scanned do not give a response. In what state are these ports?
Larry is an IT consultant who works for corporations and government agencies. Larry plans on shutting down the city's network using BGP devices and ombies? What type of Penetration Testing is Larry planning to carry out?
Your company uses Cisco routers exclusively throughout the network. After securing the routers to the best of your knowledge, an outside security firm is brought in to assess the network security. Although they found very few issues, they were able to enumerate the model, OS version, and capabilities for all your Cisco routers with very little effort. Which feature will you disable to eliminate the ability to enumerate this information on your Cisco routers?
You work as a penetration tester for Hammond Security Consultants. You are currently working on a contract for the state government of California. Your next step is to initiate a DoS attack on their network. Why would you want to initiate a DoS attack on a system you are testing?
Harold is a security analyst who has just run the rdisk /s command to grab the backup SAM file on a computer. Where should Harold navigate on the computer to find the file?
You setup SNMP in multiple offices of your company. Your SNMP software manager is not receiving data from other offices like it is for your main office. You suspect that firewall changes are to blame. What ports should you open for SNMP to work through Firewalls (Select 2)
You are trying to locate Microsoft Outlook Web Access Default Portal using Google search on the Internet. What search string will you use to locate them?
Meyer Electronics Systems just recently had a number of laptops stolen out of their office. On these laptops contained sensitive corporate information regarding patents and company strategies. A month after the laptops were stolen, a competing company was found to have just developed products that almost exactly duplicated products that Meyer produces. What could have prevented this information from being stolen from the laptops?
The efforts to obtain information before a trail by demanding documents, depositions, questioned and answers written under oath, written requests for admissions of fact and examination of the scene is a description of what legal term?
To make sure the evidence you recover and analyze with computer forensics software can be admitted in court, you must test and validate the software. What group is actively providing tools and creating procedures for testing and validating computer forensics software ?
Under which Federal Statutes does FBI investigate for computer crimes involving e-mail scams and mail fraud?
Which of the following should a computer forensics lab used for investigations have?
You are called by an author who is writing a book and he wants to know how long the copyright for his book will last after he has the book published?
From the following spam mail header, identify the host IP that sent this spam? From jie02@netvigator.com jie02@netvigator.com Tue Nov 27 17:27:11 2001 Received: from viruswall.ie.cuhk.edu.hk (viruswall [137.189.96.52]) by eng.ie.cuhk.edu.hk (8.11.6/8.11.6) with ESMTP id fAR9RAP23061 for ; Tue, 27 Nov 2001 17:27:10 +0800 (HKT) Received: from mydomain.com (pcd249020.netvigator.com [203.218.39.20]) by viruswall.ie.cuhk.edu.hk (8.12.1/8.12.1) with SMTP id fAR9QXwZ018431 for ; Tue, 27 Nov 2001 17:26:36 +0800 (HKT) Message-Id: >200111270926.fAR9QXwZ018431@viruswall.ie.cuhk.edu.hk
From: “china hotel web”
To: “Shlam”
Subject: SHANGHAI (HILTON HOTEL) PACKAGE Date: Tue, 27 Nov 2001 17:25:58 +0800 MIME-Version: 1.0 X-Priority: 3 X-MSMail- Priority: Normal Reply-
To: “china hotel web”
Law enforcement officers are conducting a legal search for which a valid warrant was obtaineD. While conducting the search, officers observe an item of evidence for an unrelated crime that was not included in the warrant. The item was clearly visible to the officers and immediately identified as evidence. What is the term used to describe how this evidence is admissible?
When investigating a network that uses DHCP to assign IP addresses, where would you look to determine which system (MAC address) had a specific IP address at a specific time?
When conducting computer forensic analysis, you must guard against ______________ So that you remain focused on the primary job and insure that the level of work does not increase beyond what was originally expecteD.
Study the log given below and answer the following question: Apr 24 14:46:46 [4663]: spp_portscan: portscan detected from 194.222.156.169 Apr 24 14:46:46 [4663]: IDS27/FIN Scan: 194.222.156.169:56693 -> 172.16.1.107:482 Apr 24 18:01:05 [4663]: IDS/DNS-version-query: 212.244.97.121:3485 -> 172.16.1.107:53 Apr 24 19:04:01 [4663]: IDS213/ftp-passwd-retrieval: 194.222.156.169:1425 -> 172.16.1.107:21 Apr 25 08:02:41 [5875]: spp_portscan: PORTSCAN DETECTED from 24.9.255.53 Apr 25 02:08:07 [5875]: IDS277/DNS-version-query: 63.226.81.13:4499 -> 172.16.1.107:53 Apr 25 02:08:07 [5875]: IDS277/DNS-version-query: 63.226.81.13:4630 -> 172.16.1.101:53 Apr 25 02:38:17 [5875]: IDS/RPC-rpcinfo-query: 212.251.1.94:642 -> 172.16.1.107:111 Apr 25 19:37:32 [5875]: IDS230/web-cgi-space-wildcard: 198.173.35.164:4221 -> 172.16.1.107:80 Apr 26 05:45:12 [6283]: IDS212/dns-zone-transfer: 38.31.107.87:2291 -> 172.16.1.101:53 Apr 26 06:43:05 [6283]: IDS181/nops-x86: 63.226.81.13:1351 -> 172.16.1.107:53 Apr 26 06:44:25 victim7 PAM_pwdb[12509]: (login) session opened for user simple by (uid=0) Apr 26 06:44:36 victim7 PAM_pwdb[12521]: (su) session opened for user simon by simple(uid=506) Apr 26 06:45:34 [6283]: IDS175/socks-probe: 24.112.167.35:20 -> 172.16.1.107:1080 Apr 26 06:52:10 [6283]: IDS127/telnet-login-incorrect: 172.16.1.107:23 -> 213.28.22.189:4558 Precautionary measures to prevent this attack would include writing firewall rules. Of these firewall rules,
which among the following would be appropriate?
A suspect is accused of violating the acceptable use of computing resources, as he has visited adult websites and downloaded images. The investigator wants to demonstrate that the suspect did indeed visit these sites. However, the suspect has cleared the search history and emptied the cookie cache. Moreover, he has removed any images he might have downloadeD. What can the investigator do to prove the violation? Choose the most feasible option.
When reviewing web logs, you see an entry for resource not found in the HTTP status code fileD. What is the actual error code that you would see in the log for resource not found?
In what way do the procedures for dealing with evidence in a criminal case differ from the procedures for dealing with evidence in a civil case?
A honey pot deployed with the IP 172.16.1.108 was compromised by an attacker . Given below is an excerpt from a Snort binary capture of the attack. Decipher the activity carried out by the attacker by studying the log. Please note that you are required to infer only what is explicit in the excerpt. (Note: The student is being tested on concepts learnt during passive OS fingerprinting, basic TCP/IP connection concepts and the ability to read packet signatures from a sniff dump.) 03/15-20:21:24.107053 211.185.125.124:3500 -> 172.16.1.108:111 TCP TTL:43 TOS:0×0 ID:29726 IpLen:20 DgmLen:52 DF ***A**** Seq: 0x9B6338C5 Ack: 0x5820ADD0 Win: 0x7D78 TcpLen: 32 TCP Options (3) => NOP NOP TS: 23678634 2878772 =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
03/15-20:21:24.452051 211.185.125.124:789 -> 172.16.1.103:111 UDP TTL:43 TOS:0×0 ID:29733 IpLen:20 DgmLen:84 Len: 64
01 0A 8A 0A 00 00 00 00 00 00 00 02 00 01 86 A0 ……………. 00 00 00 02 00 00 00 03 00 00 00 00 00 00 00 00 ……………. 00 00 00 00 00 00 00 00 00 01 86 B8 00 00 00 01 …………….
00 00 00 11 00 00 00 00 ……..
=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
03/15-20:21:24.730436 211.185.125.124:790 -> 172.16.1.103:32773 UDP TTL:43 TOS:0×0 ID:29781 IpLen:20 DgmLen:1104 Len: 1084 47 F7 9F 63 00 00 00 00 00 00 00 02 00 01 86 B8
Lance wants to place a honeypot on his network. Which of the following would be your recommendations?
Paula works as the primary help desk contact for her company.Paula has just received a call from a user reporting that his computer just displayed a Blue Screen of Death screen and he can no longer work.Paula
walks over to the user‟s computer and sees the Blue Screen of Death screen.The user‟s computer is running
Windows XP, but the Blue Screen looks like a familiar one that Paula had seen on Windows 2000 computers periodically. The user said he stepped away from his computer for only 15 minutes and when he got back, the Blue Screen was there.Paula also noticed that the hard drive activity light was flashing, meaning that the computer was processing something.Paula knew this should not be the case since the computer should be completely frozen during a Blue Screen. She checks the network IDS live log entries and notices numerous nmap scan alerts.
What is Paula seeing happen on this computer?
When examining the log files from a Windows IIS Web Server, how often is a new log file created?
A (n) ____________ is one that‟s performed by a computer program rather than the attacker manually performing the steps in the attack sequence.
If a suspect computer is located in an area that may have toxic chemicals, you must:
What is the advantage in encrypting the communication between the agent and the monitor in an Intrusion Detection System?