Nz8EkEgfhdc/sddefault.jpg' alt='Using John The Ripper To Crack Wpa2 Handshake' title='Using John The Ripper To Crack Wpa2 Handshake' />Network Footprinting Reconnaissance The tester would attempt to gather as much information as possible about the selected network.Reconnaissance can take two forms.There are numerous ways to enter into someones wireless network through Online WiFi Password Hacker, and we decided to present you ideas how to do it more.The app is certainly a relic, from a time when the casual computer user couldnt crack open Photoshop or Skitch or Pixelmator or thousands of web apps.Certified Ethical Hacker TC Flashcards.Certified Ethical Hacker flash cards.QUESTIONOne way to defeat a multi level security solution is to leak data viaa covert channel.Explanation A Covert channel is a simple yet very effective mechanism for sending and receiving information data between machines without alerting any firewalls and IDSs on the network.The technique derives its stealthy nature by virtue of the fact that it sends traffic through ports that most firewalls will permit through.In addition the technique can bypass IDS by appearing to be innocuous packet carrying ordinary information when in fact it is concealing its actual data in one of the several control fields in the TCP and IP headers.QUESTIONWhich of the following is a hashing algorithmMD5.ExplanationReference MD5 is an algorithm that is used to verify data integrity through the creation of a 1.QUESTIONA company has five different subnets 1.How can NMAP be used to scan these adjacent Class C networks A.NMAP P 1.Explanation you could use nmap, which will scan these adjacent Class C networks ranges of IPs with the P option.For example Code nmap P 1.QUESTIONWhich vital role does the U.HMgDSI2hKPg' alt='Using John The Ripper To Crack Wpa2 Handshake' title='Using John The Ripper To Crack Wpa2 Handshake' />S.Computer Security Incident Response Team CSIRT provide A.Incident response services to any user, company, government agency, or organization in partnership with the Department of Homeland Security.Explanation Incident response services to any user, company, government agency, or organization in partnership with A Computer Security Incident Response Team CSIRT is a service organization that is responsible for receiving, reviewing, and responding to computer security incident reports and activity.Their services are usually performed for a defined constituency that could be a parent entity such as a corporation, governmental, oreducational organization a region or country a research network or a paid client, manager or team lead.What is the broadcast address for the subnet 1.C.GIIirc0gGr0.jpg' alt='Using John The Ripper To Crack Wpa2 Handshake Crack' title='Using John The Ripper To Crack Wpa2 Handshake Crack' />Explanation Address 1.Netmask 2.Wildcard 0. 0. 3.Network 1.Class BBroadcast 1.Host.Min 1. 90. Host.Max 1.HostsNet 1.Help. 6.QUESTIONJohn the Ripper is a technical assessment tool used to test the weakness of which of the followingD.Passwords.Explanation John the Ripper is a password cracking software tool.It is one of the most popular password testing and breaking programs as it combines a number of password crackers into one package, auto detects password hash types, and includes a customizable cracker.It can be run against various encrypted password formats including several crypt password hash types most commonly found on various UNIX versions based on DES,MD5, or Blowfish, Kerberos AFS, and Windows NT2.XP2.LM hash.Additional modules have extended its ability to include MD4 based password hashes and passwords stored in LDAP, My.SQL, and others.MODES. shtml. 7. QUESTIONIn the software security development life cycle process, threat modeling occurs in which phaseD.Implementation.Explanation.Design identify Design Requirements from security perspective Architecture Design Reviews Threat Modelinghttp resources.QUESTIONWhich of the following items of a computer system will an anti virus program scan for virusesA.Boot Sector.Explanation.A boot sector virus is one that infects the first sector, i.Boot sector viruses can also infect the MBR.The first PC virus in the wild was Brain, a boot sector virus that exhibited stealth techniques to avoid detection.QUESTIONWhich of the following conditions must be given to allow a tester to exploit a Cross Site Request Forgery CSRF vulnerable web applicationD.The web application should not use random tokens.Explanation.Any cross site scripting vulnerability can be used to defeat token, Double Submit cookie, referrer and origin based CSRF defenses.This is because an XSS payload can simply read any page on the site using an XMLHttp.Request and obtain the generated token from the response, and include that token with a forged request.QUESTIONA security analyst is performing an audit on the network to determine if there are any deviations from the security policies in place.The analyst discovers that a user from the IT department had a dial out modem installed.Which security policy must the security analyst check to see if dial out modems are allowed C.Remote access policy.Explanation Remote access policy is a document which outlines and defines acceptable methods of remotely connecting to the internal network.It is essential in largeorganization where networks are geographically dispersed and extend into insecure network locations such as public networks or unmanaged home networkshttp en.Remoteaccesspolicy.QUESTION 1.A company is using Windows Server 2.Active Directory AD.What is the most efficient way to crack the passwords for the AD usersC.Perform an attack with a rainbow table.Explanation A rainbow table is a precomputed table for reversing cryptographic hash functions, usually for cracking password hashes.Tables are usually used in recovering a plaintext password, up to a certain length consisting of a limited set of characters.It is a practical example of a spacetime trade off, using more computer processing time at the cost of less storage when calculating a hash on every attempt, or less processing time and more storage when compared to a simple lookup table with one entry per hash.Rainbowtable.When an alert rule is matched in network based IDS like snort, the IDS does which of the followingB.Continues to evaluate the packet until all rules are checked.Explanation An intrusion detection system IDS is a device or software application that monitors network or system activities for malicious activities or policy violations and produces reports to a management station.Usb Parallel Cable Driver Download '>Usb Parallel Cable Driver Download .Networkintrusiondetectionsystem.QUESTIONAn attacker sniffs encrypted traffic from the network and is subsequently able to decrypt it.The attacker can now use which cryptanalytic technique to attempt to discover the encryption key D.Chosen ciphertext attack.Explanation Explanation A chosen ciphertext attack CCA is an attack model for cryptanalysis in which the cryptanalyst gathers information, at least in part, by choosing a ciphertext and obtaining its decryption under an unknown key.In the attack, an adversary has a chance to enter one or more known ciphertexts into the system and obtain the resulting plaintexts.From these pieces of information the adversary can attempt to recover the hidden secret key used for decryption.Chosen ciphertextattack.QUESTIONLow humidity in a data center can cause which of the following problems.C.Static electricity.Explanation low humidity can cause buildup of Static electricity.Static discharge can damage data and equipment.ISC2low humidity in a data center can cause what problem1.QUESTIONWhich of the following describes a component of Public Key Infrastructure PKI where a copy of a private key is stored to provide third party access and to facilitate recovery operations D.Key escrow.Explanation Key escrow also known as a fair cryptosystem is an arrangement in which the keys needed to decrypt encrypted data are held in escrow so that, under certain circumstances, an authorized third party may gain access to those keys.QUESTIONWhich tool would be used to collect wireless packet data A.Net.Stumbler. Explanation Net.Stumbler also known as Network Stumbler is a tool for Windows that facilitates detection of Wireless LANs using the 8.WLAN standards.It runs on Microsoft Windows operating systems from Windows 2.Windows.QUESTIONWhich of the following processes evaluates the adherence of an organization to its stated security policy D.Security auditing.Explanation Security audit A computer security audit is a manual or systematic measurable technical assessment of a system or application.Securityaudit.QUESTIONWhich of the following techniques can be used to mitigate the risk of an on site attacker from connecting to an unused network port and gaining full access to the networkChoose three.A.Port Security.C. Network Admission Control NACE.Port Based Authentication.Explanation.Port security refers to the defense, law and treaty enforcement, and counterterrorism activities that fall within the port and maritime domain.A list of wireless network attacks.In our buzzword filled industry, wrapping your arms around wireless attacks and their potential business impacts.By submitting your personal information, you agree that Tech.Target and its partners may contact you regarding relevant content, products and special offers.You also agree that your personal information may be transferred and processed in the United States, and that you have read and agree to the Terms of Use and the Privacy Policy.This tip tries to bring order to this chaos by providing a reference list of attacks against 8.X, categorized by type of threat, and mapped to associated hacker methods and tools.Access control attacks.These attacks attempt to penetrate a network by using wireless or evading WLAN access control measures, like AP MAC filters and 8.X port access controls.Type of Attack. Baker College Game Software Development Review . Description.Methods and Tools.War Driving.Discovering wireless LANs by listening to beacons or sending probe requests, thereby providing launch point for further attacks.Airmon ng, DStumbler, Kis.MAC, Mac.Stumbler, Net.Stumbler, Wellenreiter, Wi.Fi.Fo. Fum. Rogue Access Points.Installing an unsecured AP inside firewall, creating open backdoor into trusted network.Any hardware or software APAd Hoc Associations.Connecting directly to an unsecured station to circumvent AP security or to attack station.Any wireless card or USB adapter.MAC Spoofing.Reconfiguring an attackers MAC address to pose as an authorized AP or station.Mac.Changer, Sir.MACs.Alot, SMAC, Wellenreiter, wicontrol.X RADIUS Cracking.Recovering RADIUS secret by brute force from 8.X access request, for use by evil twin AP.Packet capture tool on LAN or network path between AP and RADIUS server.Confidentiality attacks.These attacks attempt to intercept private information sent over wireless associations, whether sent in the clear or encrypted by 8.Type of Attack.Description.Methods and Tools.Eavesdropping.Capturing and decoding unprotected application traffic to obtain potentially sensitive information.Ettercap, Kismet, Wireshark, commercial analyzers.WEP Key Cracking.Capturing data to recover a WEP key using passive or active methods.Aircrack ng, airoway, Air.Snort, chopchop, dwepcrack, Wep.Attack, Wep.Decrypt, Wep.Lab, wesside.Evil Twin APMasquerading as an authorized AP by beaconing the WLANs service set identifier SSID to lure users.AP, D Link G2.Hermes.AP, Rogue Squadron, Wifi.BSDAP Phishing.Running a phony portal or Web server on an evil twin AP to phish for user logins, credit card numbers.Airpwn, Airsnarf, Hotspotter, Karma, RGlue.APMan in the Middle.Running traditional man in the middle attack tools on an evil twin AP to intercept TCP sessions or SSLSSH tunnels.Ettercap NG, sshmitm.Integrity attacks.These attacks send forged control, management or data frames over wireless to mislead the recipient or facilitate another type of attack e.Do.S. Type of Attack.Description.Methods and Tools.Frame Injection.Crafting and sending forged 8.Airpwn, File.WEPWedgie, wnet dinjectreinject.Data Replay.Capturing 8.Capture Injection Tools.X EAP Replay.Capturing 8.X Extensible Authentication Protocols e.EAP Identity, Success, Failure for later replay.Wireless Capture Injection Tools between station and AP8.X RADIUS Replay.Capturing RADIUS Access Accept or Reject messages for later replay.Ethernet Capture Injection Tools between AP and authentication server.Authentication attacks.Intruders use these attacks to steal legitimate user identities and credentials to access otherwise private networks and services.Type of Attack.Description.Methods and Tools.Shared Key Guessing.Attempting 8.Shared Key Authentication with guessed, vendor default or cracked WEP keys.WEP Cracking Tools.PSK Cracking.Recovering a WPAWPA2 PSK from captured key handshake frames using a dictionary attack tool.WPAtty, genpmk, Kis.MAC, wpacrack.Application Login Theft.Capturing user credentials e.Ace Password Sniffer, Dsniff, PHoss, Win.Sniffer.Domain Login Cracking.Recovering user credentials e.Windows login and password by cracking Net.BIOS password hashes, using a brute force or dictionary attack tool.John the Ripper, L0pht.Crack, Cain.VPN Login Cracking.Recovering user credentials e.PPTP password or IPsec Preshared Secret Key by running brute force attacks on VPN authentication protocols.IPsec, anger and THC pptp bruter PPTP8.X Identity Theft.Capturing user identities from cleartext 8.X Identity Response packets.Capture Tools.X Password Guessing.Using a captured identity, repeatedly attempting 8.X authentication to guess the users password.Password Dictionary.X LEAP Cracking.Recovering user credentials from captured 8.X Lightweight EAP LEAP packets using a dictionary attack tool to crack the NT password hash.Anwrap, Asleap, THC LEAPcracker.X EAP Downgrade.Forcing an 8.X server to offer a weaker type of authentication using forged EAP ResponseNak packets.File.Availability attacks.These attacks impede delivery of wireless services to legitimate users, either by denying them access to WLAN resources or by crippling those resources.Type of Attack.Description.Methods and Tools.AP Theft.Physically removing an AP from a public space.Five finger discountQueensland Do.SExploiting the CSMACA Clear Channel Assessment CCA mechanism to make a channel appear busy.An adapter that supports CW Tx mode, with a low level utility to invoke continuous transmit.Beacon Flood.Generating thousands of counterfeit 8.AP.Fake. AP8. 02.Associate Authenticate Flood.Sending forged Authenticates or Associates from random MACs to fill a target APs association table.FATA Jack, Macfld.TKIP MIC Exploit.Generating invalid TKIP data to exceed the target APs MIC error threshold, suspending WLAN service.File.LORCON8.Deauthenticate Flood.Flooding stations with forged Deauthenticates or Disassociates to disconnecting users from an AP.Aireplay, Airforge, MDK, void.WIPS8.X EAP Start Flood.Flooding an AP with EAP Start messages to consume resources or crash the target.QACafe, File.X EAP Failure. Observing a valid 8.X EAP exchange, and then sending the station a forged EAP Failure message.QACafe, File.X EAP of Death. Sending a malformed 8.X EAP Identity response known to cause some APs to crash.QACafe, File.X EAP Length Attacks.Sending EAP type specific messages with bad length fields to try to crash an AP or RADIUS server.QACafe, File.
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