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Download Certified Ethical Hacker Exam (CEH v11) Exam Dumps
NEW QUESTION 51
Ethical backer jane Doe is attempting to crack the password of the head of the it department of ABC company.
She Is utilizing a rainbow table and notices upon entering a password that extra characters are added to the password after submitting. What countermeasure is the company using to protect against rainbow tables?
Answer: A
Explanation:
Explanation
Passwords are usually delineated as "hashed and salted". salting is simply the addition of a unique, random string of characters renowned solely to the site to every parole before it's hashed, typically this "salt" is placed in front of each password.
The salt value needs to be hold on by the site, which means typically sites use the same salt for each parole.
This makes it less effective than if individual salts are used.
The use of unique salts means that common passwords shared by multiple users - like "123456" or
"password" - aren't revealed revealed when one such hashed password is known - because despite the passwords being the same the immediately and hashed values are not.
Large salts also protect against certain methods of attack on hashes, including rainbow tables or logs of hashed passwords previously broken.
Both hashing and salting may be repeated more than once to increase the issue in breaking the security.
NEW QUESTION 52
Which of the following viruses tries to hide from anti-virus programs by actively altering and corrupting the chosen service call interruptions when they are being run?
Answer: D
NEW QUESTION 53
jane invites her friends Alice and John over for a LAN party. Alice and John access Jane's wireless network without a password. However. Jane has a long, complex password on her router. What attack has likely occurred?
Answer: C
Explanation:
Explanation
A wireless sniffer may be a sort of packet analyzer. A packet analyzer (also referred to as a packet sniffer) may be a piece of software or hardware designed to intercept data because it is transmitted over a network and decode the info into a format that's readable for humans. Wireless sniffers are packet analyzers specifically created for capturing data on wireless networks. Wireless sniffers also are commonly mentioned as wireless packet sniffers or wireless network sniffers.Wireless sniffer tools have many uses in commercial IT environments. Their ability to watch , intercept, and decode data because it is in transit makes them useful for:* Diagnosing and investigating network problems* Monitoring network usage, activity, and security* Discovering network misuse, vulnerabilities, malware, and attack attempts* Filtering network traffic* Identifying configuration issues and network bottlenecks* Wireless Packet Sniffer AttacksWhile wireless packet sniffers are valuable tools for maintaining wireless networks, their capabilities make them popular tools for malicious actors also . Hackers can use wireless sniffer software to steal data, spy on network activity, and gather information to use in attacking the network. Logins (usernames and passwords) are quite common targets for attackers using wireless sniffer tools. Wireless network sniffing attacks usually target unsecure networks, like free WiFi publicly places (coffee shops, hotels, airports, etc).Wireless sniffer tools also are commonly utilized in "spoofing" attacks. Spoofing may be a sort of attack where a malicious party uses information obtained by a wireless sniffer to impersonate another machine on the network. Spoofing attacks often target business' networks and may be wont to steal sensitive information or run man-in-the-middle attacks against network hosts.There are two modes of wireless sniffing: monitor mode and promiscuous mode.
In monitor mode, a wireless sniffer is in a position to gather and skim incoming data without sending any data of its own. A wireless sniffing attack in monitor mode are often very difficult to detect due to this. In promiscuous mode, a sniffer is in a position to read all data flowing into and out of a wireless access point.
Since a wireless sniffer in promiscuous mode also sniffs outgoing data, the sniffer itself actually transmits data across the network. This makes wireless sniffing attacks in promiscuous mode easier to detect. it's more common for attackers to use promiscuous mode in sniffing attacks because promiscuous mode allows attackers to intercept the complete range of knowledge flowing through an access point.
Preventing Wireless Sniffer AttacksThere are several measures that organizations should fancy mitigate wireless packet sniffer attacks. First off, organizations (and individual users) should refrain from using insecure protocols. Commonly used insecure protocols include basic HTTP authentication, File Transfer Protocol (FTP), and Telnet. Secure protocols like HTTPS, Secure File Transfer Protocol (SFTP), and Secure Shell (SSH) should be utilized in place of their insecure alternatives when possible. Secure protocols make sure that any information transmitted will automatically be encrypted. If an insecure protocol must be used, organizations themselves got to encrypt any data which will be sent using that protocol. Virtual Private Networks (VPNs) are often wont to encrypt internet traffic and are a well-liked tool for organizations today.Additionally to encrypting information and using secure protocols, companies can prevent attacks by using wireless sniffer software to smell their own networks. this enables security teams to look at their networks from an attacker's perspective and find out sniffing vulnerabilities and attacks ongoing . While this method won't be effective in discovering wireless network sniffers in monitor mode, it's possible to detect sniffers in promiscuous mode (the preferred mode for attackers) by sniffing your own network.
Tools for Detecting Packet SniffersWireless sniffer software programs frequently include features like intrusion and hidden network detection for helping organizations discover malicious sniffers on their networks. additionally to using features that are built into wireless sniffer tools, there are many aftermarket tools available that are designed specifically for detecting sniffing attacks. These tools typically perform functions like monitoring network traffic or scanning network cards in promiscuous mode to detect wireless network sniffers. There are dozens of options (both paid and open source) for sniffer detection tools, so organizational security teams will got to do some research before selecting the proper tool for his or her needs.
NEW QUESTION 54
Susan has attached to her company's network. She has managed to synchronize her boss's sessions with that of the file server. She then intercepted his traffic destined for the server, changed it the way she wanted to and then placed it on the server in his home directory.
What kind of attack is Susan carrying on?
Answer: D
NEW QUESTION 55
Which of the following is considered an exploit framework and has the ability to perform automated attacks on services, ports, applications and unpatched security flaws in a computer system?
Answer: D
NEW QUESTION 56
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