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Fred is testing an internal switch.From an external IP address, Fred wants to try and trick this switch into thinking it already has established a session with his computer. How can Fred accomplish this?<br>A. Fred can send an IP packet with the ACK bit set to zero and the source address of the switch.<br>B. He can send an IP packet with the SYN bit and the source address of his computer.<br>C. Fred can send an IP packet to the switch with the ACK bit and the source address of his machine.<br>D. Fred can accomplish this by sending an IP packet with the RST/SIN bit and the source address of his computer.<br>Answer: C<br> <br>NEW QUESTION 24 Joel, a professional hacker, targeted a company and identified the types of websites frequently visited by its employees. Using this information, he searched for possible loopholes in these websites and injected a malicious script that can redirect users from the web page and download malware onto a victim's machine. Joel waits for the victim to access the infected web application so as to compromise the victim's machine. Which of the following techniques is used by Joel in the above scenario?<br>A. Watering hole attack<br>B. Clickjacking attack<br>C. DNS rebinding attack<br>D. MarioNet attack<br>Answer: A<br>Explanation:Web Application Threats - Watering Hole Attack In a watering hole attack, the attacker identifies the kinds of websites a target company/individual frequently surfs and tests those particular websites to identify any possible vulnerabilities. Attacker injects malicious script/code into the web application that can redirect the webpage and download malware onto the victim machine. (P.1797/1781)<br> <br>NEW QUESTION 25 in this form of encryption algorithm, every Individual block contains 64-bit data, and three keys are used, where each key consists of 56 bits. Which is this encryption algorithm?<br>A. Triple Data Encryption standard<br>B. IDEA<br>C. AES<br>D. MDS encryption algorithm<br>Answer: A<br>Explanation:Triple DES is another mode of DES operation. It takes three 64-bit keys, for an overall key length of 192 bits. In Stealth, you merely type within the entire 192-bit (24 character) key instead of entering each of the three keys individually. The Triple DES DLL then breaks the user-provided key into three subkeys, padding the keys if necessary in order that they are each 64 bits long. The procedure for encryption is strictly an equivalent as regular DES, but it's repeated 3 times , hence the name Triple DES. the info is encrypted with the primary key, decrypted with the second key, and eventually encrypted again with the third key. Triple DES runs 3 times slower than DES, but is far safer if used properly. The procedure for decrypting something is that the same because the procedure for encryption, except it's executed in reverse. Like DES, data is encrypted and decrypted in 64-bit chunks. Although the input key for DES is 64 bits long, the particular key employed by DES is merely 56 bits long . the smallest amount significant (right-most) bit in each byte may be a parity , and will be set in order that there are always an odd number of 1s in every byte. These parity bits are ignored, so only the seven most vital bits of every byte are used, leading to a key length of 56 bits. this suggests that the effective key strength for Triple DES is really 168 bits because each of the three keys contains 8 parity bits that aren't used during the encryption process. Triple DES Modes Triple ECB (Electronic Code Book) * This variant of Triple DES works precisely the same way because the ECB mode of DES. * this is often the foremost commonly used mode of operation. Triple CBC (Cipher Block Chaining) * This method is extremely almost like the quality DES CBC mode. * like Triple ECB, the effective key length is 168 bits and keys are utilized in an equivalent manner, as described above, but the chaining features of CBC mode also are employed. * the primary 64-bit key acts because the Initialization Vector to DES. * Triple ECB is then executed for one 64-bit block of plaintext. * The resulting ciphertext is then XORed with subsequent plaintext block to be encrypted, and therefore the procedure is repeated. * This method adds an additional layer of security to Triple DES and is therefore safer than Triple ECB, although it's not used as widely as Triple ECB.<br> <br>NEW QUESTION 26 Which of the following options represents a conceptual characteristic of an anomaly-based IDS over a signature-based IDS?<br>A. Cannot deal with encrypted network traffic<br>B. Produces less false positives<br>C. Can identify unknown attacks<br>D. Requires vendor updates for a new threat<br>Answer: C<br>Explanation:An anomaly-based intrusion detection system is an intrusion detection system for detecting both network and computer intrusions and misuse by monitoring system activity and classifying it as either normal or anomalous. The classification is based on heuristics or rules, rather than patterns or signatures, and attempts to detect any type of misuse that falls out of normal system operation. This is as opposed to signature-based systems, which can only detect attacks for which a signature has previously been created.In order to positively identify attack traffic, the system must be taught to recognize normal system activity. The two phases of a majority of anomaly detection systems consist of the training phase (where a profile of normal behaviors is built) and the testing phase (where current traffic is compared with the profile created in the training phase). Anomalies are detected in several ways, most often with artificial intelligence type techniques. Systems using artificial neural networks have been used to great effect. Another method is to define what normal usage of the system comprises using a strict mathematical model, and flag any deviation from this as an attack. This is known as strict anomaly detection.[3] Other techniques used to detect anomalies include data mining methods, grammar-based methods, and the Artificial Immune System.Network-based anomalous intrusion detection systems often provide a second line of defense to detect anomalous traffic at the physical and network layers after it has passed through a firewall or other security appliance on the border of a network. Host-based anomalous intrusion detection systems are one of the last layers of defense and reside on computer endpoints. They allow for fine-tuned, granular protection of endpoints at the application level.Anomaly-based Intrusion Detection at both the network and host levels have a few shortcomings; namely a high false-positive rate and the ability to be fooled by a correctly delivered attack. Attempts have been made to address these issues through techniques used by PAYL and MCPAD.<br> <br>NEW QUESTION 27......<br>Tags: 312-50v12uc778uc99dub364ud504uc0d8ud50c ub2e4uc6b4,312-50v12ub192uc740 ud1b5uacfcuc728 uc2dcud5d8uacf5ubd80,312-50v12ucd5cuc2e0 uc5c5ub370uc774ud2b8 uc778uc99dub364ud504,312-50v12ub364ud504ubb38uc81cuc9d1,312-50v12ub364ud504ub370ubaa8ubb38uc81c,312-50v12ub364ud504ucd5cuc2e0ubc84uc804,312-50v12uc2dcud5d8ub300ube44 ub364ud504 ucd5cuc2e0ubb38uc81c,312-50v12ub192uc740 ud1b5uacfcuc728 uc2dcud5d8ub300ube44 uacf5ubd80ubb38uc81c,312-50v12ucd5cuc2e0 uc5c5ub370uc774ud2b8ubc84uc804 uc778uc99duc2dcud5d8uc790ub8cc,312-50v12ud569uaca9ubcf4uc7a5 uac00ub2a5 uc2dcud5d8ub364ud504,312-50v12ub192uc740 ud1b5uacfcuc728 ub364ud504ubb38uc81c,312-50v12ucd5cuc2e0 uc5c5ub370uc774ud2b8 uc778uc99dub364ud504uc790ub8cc<br>
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ECCouncil 312-50v12 Certified Ethical Hacker Exam 3 Explanation: Web Application Threats - Watering Hole Attack In a watering hole attack, the attacker identifies the kinds of websites a target company/individual frequently surfs and tests those particular websites to identify any possible vulnerabilities. Attacker injects malicious script/code into the web application that can redirect the webpage and download malware onto the victim machine. (P.1797/1781) NEW QUESTION 25 in this form of encryption algorithm, every Individual block contains 64-bit data, and three keys are used, where each key consists of 56 bits. Which is this encryption algorithm? itcertkr.com A. Triple Data Encryption standard B. IDEA C. AES D. MDS encryption algorithm Answer: A Explanation: Triple DES is another mode of DES operation. It takes three 64-bit keys, for an overall key length of 192 bits. In Stealth, you merely type within the entire 192-bit (24 character) key instead of entering each of the three keys individually. The Triple DES DLL then breaks the user-provided key into three subkeys, padding the keys if necessary in order that they are each 64 bits long. The procedure for encryption is strictly an equivalent as regular DES, but it's repeated 3 times , hence the name Triple DES. the info is encrypted with the primary key, decrypted with the second key, and eventually encrypted again with the third key. Triple DES runs 3 times slower than DES, but is far safer if used properly. The procedure for decrypting something is that the same because the procedure for encryption, except it's executed in reverse. Like DES, data is encrypted and decrypted in 64-bit chunks. Although the input key for DES is 64 bits long, the particular key employed by DES is merely 56 bits long . the smallest amount significant (right-most) bit in each byte may be a parity , and will be set in order that there are always an odd number of 1s in every byte. These parity bits are ignored, so only the seven most vital bits of every byte are used, leading to a key length of 56 bits. this suggests that the effective key strength for Triple DES is really 168 bits because each of the three keys contains 8 parity bits that aren't used during the encryption process. Triple DES Modes Triple ECB (Electronic Code Book) * This variant of Triple DES works precisely the same way because the ECB mode of DES. * this is often the foremost commonly used mode of operation. Triple CBC (Cipher Block Chaining) * This method is extremely almost like the quality DES CBC mode. * like Triple ECB, the effective key length is 168 bits and keys are utilized in an equivalent manner, as described above, but the chaining features of CBC mode also are employed. * the primary 64-bit key acts because the Initialization Vector to DES. * Triple ECB is then executed for one 64-bit block of plaintext. * The resulting ciphertext is then XORed with subsequent plaintext block to be encrypted, and therefore the procedure is repeated. * This method adds an additional layer of security to Triple DES and is therefore safer than Triple ECB, although it's not used as widely as Triple ECB. NEW QUESTION 26 Which of the following options represents a conceptual characteristic of an anomaly-based IDS over a signature-based IDS? A. Cannot deal with encrypted network traffic 312-50v12인증덤프샘플다운 인증덤프샘플다운 & 312-50v12높은통과율시험공부 높은통과율시험공부 - 312-50v12최신업데이트인증덤프 최신업데이트인증덤프
ECCouncil 312-50v12 Certified Ethical Hacker Exam 4 B. Produces less false positives C. Can identify unknown attacks D. Requires vendor updates for a new threat Answer: C Explanation: An anomaly-based intrusion detection system is an intrusion detection system for detecting both network and computer intrusions and misuse by monitoring system activity and classifying it as either normal or anomalous. The classification is based on heuristics or rules, rather than patterns or signatures, and attempts to detect any type of misuse that falls out of normal system operation. This is as opposed to signature-based systems, which can only detect attacks for which a signature has previously been created. In order to positively identify attack traffic, the system must be taught to recognize normal system activity. The two phases of a majority of anomaly detection systems consist of the training phase (where a profile of normal behaviors is built) and the testing phase (where current traffic is compared with the profile created in the training phase). Anomalies are detected in several ways, most often with artificial intelligence type techniques. Systems using artificial neural networks have been used to great effect. Another method is to define what normal usage of the system comprises using a strict mathematical model, and flag any deviation from this as an attack. This is known as strict anomaly detection.[3] Other techniques used to detect anomalies include data mining methods, grammar-based methods, and the Artificial Immune System. Network-based anomalous intrusion detection systems often provide a second line of defense to detect anomalous traffic at the physical and network layers after it has passed through a firewall or other security appliance on the border of a network. Host-based anomalous intrusion detection systems are one of the last layers of defense and reside on computer endpoints. They allow for fine- tuned, granular protection of endpoints at the application level. Anomaly-based Intrusion Detection at both the network and host levels have a few shortcomings; namely a high false-positive rate and the ability to be fooled by a correctly delivered attack. Attempts have been made to address these issues through techniques used by PAYL and MCPAD. 덤프자료 itcertkr.com NEW QUESTION 27 ...... Tags: 312-50v12인증덤프샘플 다운 인증덤프샘플 다운,312-50v12높은 통과율 시험공부 프 프,312-50v12덤프문제집 덤프문제집,312-50v12덤프데모문제 프 최신문제 프 최신문제,312-50v12높은 통과율 시험대비 공부문제 높은 통과율 시험대비 공부문제,312-50v12최신 업데이트버전 인증시험자 료 료,312-50v12합격보장 가능 시험덤프 합격보장 가능 시험덤프,312-50v12높은 통과율 덤프문제 덤프자료 높은 통과율 시험공부,312-50v12최신 업데이트 인증덤 덤프데모문제,312-50v12덤프최신버전 덤프최신버전,312-50v12시험대비 덤 최신 업데이트버전 인증시험자 높은 통과율 덤프문제,312-50v12최신 업데이트 인증 최신 업데이트 인증덤 시험대비 덤 최신 업데이트 인증 312-50v12인증덤프샘플다운 인증덤프샘플다운 & 312-50v12높은통과율시험공부 높은통과율시험공부 - 312-50v12최신업데이트인증덤프 최신업데이트인증덤프
