Download Ophcrack Live Iso Free Download Ophcrack for Windows 8/8.1

Total Page:16

File Type:pdf, Size:1020Kb

Download Ophcrack Live Iso Free Download Ophcrack for Windows 8/8.1 download ophcrack live iso Free Download Ophcrack for Windows 8/8.1. Cracking passwords is usually not required as long as you remember the passwords for the accounts on your machine. However, what sometimes happens is that you forget the password for an account on your computer and that's when you rush to a tool that can help you crack the password for that account. There are tons of tools in the market that can help you recover these forgotten passwords, however, only a handful of those actually work and let you regain access to your account. One of these handful tools is Ophcrack which is a known tool for cracking passwords on Windows computers. Ophcrack is a nice tool that helps you recover the passwords for the accounts on your Windows computer. You can even burn it to a CD and boot up your computer from it and then begin cracking passwords on your machine. Below we will show you how to free download Ophcrack Windows 8.1/8 USB to recover forgotten local Administrator and user password on Windows 8.1/8 easily. Downloading Ophcrack for Windows 8/8.1. 1. Open a web browser such as Google Chrome on your PC and head over to the Ophcrack website. When the website loads-up, you will find a button saying Download Live CD. Click on it and it will let you download the Live CD version of the Ophcrack app. So, that was how you could download and use Ophcrack for Windows 8 and 8.1. Ophcrack Cannot Work on Windows 8/8.1 Computer? As you know, Ophcrack is a free tool that can crack Windows XP/Vista/7 login password. it is not compatible with Windows 10/8.1/8 well. If you boot up your locked computer from Ophcrack disk, but get the error message saying "No partition containing hashes found" or "No tables found", it is because Ophcrack cannot work on Windows 8.1/8 computer. In this case, you can use a more advance tool such as Windows Password Key, the best Ophcrack alternative, can easily forgotten Windows administrator/user password and Microsoft account password for Windows 10/8.1/8/7/Vista/XP. 1. Download and install Windows Password Key on an accessible computer. Insert a CD/DVD disk or USB flash to the workable computer. Specify the CD / USB burning drive and click "Burn" to burn a password reset disk. The tool lets you reset forgotten Windows 8.1 password in several minutes. Just head over to the Windows Password key website and download and install the app on your PC. Ophcrack. Ophcrack permet de récupérer et d'extraire les mots de passe du système d'exploitation. Si vous oubliez le mot de passe d'accès à Windows, Ophcrack. 1 2 3 4 5 6 7 8 9 10. Utiliser des mots de passe pour accéder à l'ordinateur est une habitude assez répandue. Si vous oubliez le mot de passe de votre Windows XP vous pouvez être tranquille, Ophcrack peut vous aider à le récupérer. Récupération des mots de passe. L' emploi de mots de passe prétend d'éviter l'accès à des personnes non autorisées mais vous vous exposez à l'oublier ou à la perdre . Ophcrack est un outil en LiveCD avec une interface graphique d'utilisateur (GUI) , qui rend possible la récupération des mots de passe du système d'exploitation Windows pour pouvoir y accéder à nouveau. Il peut même décoder des mots de passe alphanumériques. Caractéristiques. Récupération de mots de passe du système d'exploitation. LiveCD avec une interface graphique d'utilisateur ( GUI ). Temps d'attente en fonction de la complication du mot de passe . Fonctionnement inspiré des tables arc-en-ciel . Téléchargez Ophcrack et récupérez le mot de passe de Windows en cas d'oubli, sans problèmes. ophcrack LiveCD. Web site: http://ophcrack.sourceforge.net Origin: Switzerland Category: Rescue Desktop environment: Openbox Architecture: x86 Based on: SliTaz Wikipedia: Ophcrack Media: Live CD The last version | Released: 3.6.0 | June 4, 2013 Zobacz po polsku: ophcrack LiveCD. ophcrack LiveCD – a specialist Linux distribution based on SliTaz. It contains the ophcrack tool – a Windows password cracker based on a time- memory trade-off using rainbow tables. It recovers 99.9% of alphanumeric passwords in seconds, and comes with a Graphical User Interface and runs on multiple platforms. ophcrack LiveCD automates the retrieval, decryption, and cracking of passwords from a Windows system. The LiveCD is separately available for Windows XP, and for Windows Vista + Windows 7. Ophcrack is being developed by Objectif Sécurité under the GPLv2 license. Download ophcrack live iso. Ophcrack LiveCD is a specialist SliTaz-based live CD containing Ophcrack, an open source Windows password cracker that uses rainbow tables. The graphical program included on the live CD is reputed for being able to crack alphanumeric Windows passwords of up to 14 characters in usually just a few seconds. Cedric Tissieres has announced the release of Ophcrack LiveCD 3.4.0, a specialist Linux distribution featuring a free Windows password cracker based on rainbow tables. Would you like to receive an email when a new version of Ophcrack is released? If so then click here. Are you having a problem downloading Linux from LQ ISO? Let us know and we'd be happy to address the issue. Hacking-Lab LiveCD. A Live Linux operating system specifically designed for the Hacking-Lab IT website. Hacking-Lab LiveCD is an open-source and free distribution of Linux that provides OpenVPN access into the Hacking-Lab remote security laboratory. It is based on the Debian GNU/Linux operating system and built around the modern GNOME graphical desktop environment. The operating system is distributed as a dual-arch Live DVD. As its name suggests, Hacking-Lab LiveCD is a Linux OS that is distributed as a Live CD/DVD ISO image and geared towards users of the Hacking-Lab IT portal, allowing them to access the lab remotely. The ISO image has 2.5GB in size and supports both 32-bit and 64-bit hardware platforms, but runs only with 32-bit applications. The boot menu includes various options. From the boot menu, the user will be able to start the live system with default boot options and drivers or in failsafe mode, start the installer directly, as well as to view detailed information about the hardware components of his or her computer. Modern graphical desktop environment with a two-panel layout. As mentioned, the default and only graphical desktop environment of Hacking-Lab LiveCD is GNOME, which uses a two-panel layout and a pitch black theme. Both panels are important for a productive environment, but they are highly customizable. Includes a great collection of open source (libre) applications. The distro includes a great collection of open source (libre) applications, among which we can mention the Iceweasel and Chromium web browsers, LibreOffice office suite, Audacity audio editor, Ophcrack Microsoft Windows password cracker, ClamTK antivirus, Zenmap and Wireshark network scanners, as well as Synaptic Package Manager for installing additional apps or update/remove existing ones. Bottom line. All in all, Hacking-Lab LiveCD is a decent, stable and reliable distribution of Linux whose main target are Hacking-Lab users who want to remotely connect to the laboratory from a secure and safe place..
Recommended publications
  • Automating Security Checks
    Mag. iur. Dr. techn. Michael Sonntag Automating security checks Institute for Information Processing and Microprocessor Technology (FIM) Johannes Kepler University Linz, Austria E-Mail: [email protected] http://www.fim.uni-linz.ac.at/staff/sonntag.htm © Michael Sonntag 2010 Agenda Why automatization? What can be automated? Example: Skipfish How reliable are these tools? Practical examples of searching for vulnerabilities: Information collection with NMap Password cracking (John the Ripper, Ophcrack) Exploit scanning with Nessus Michael Sonntag Automating security checks 2 Why automatization? Ensuring security is not that hard for a single system You know it in detail When something is discovered, it is implemented and tested But: Many sites with many configuration options? Do you know them all? » Are they identical everywhere (versions!)? Do you have time to change everything accordingly? » Or do you depend on automatic updates/roll-out? Are you sure you did not miss one option somewhere? » Testing the same thing several times is tedious Solution: Automatic testing whether a problem exists Professionals write tests You just apply them » No need to know exactly how the attack works! Regular re-testing is possible Ad-hoc & patchy testing Systematic & comprehensive Michael Sonntag Automating security checks 3 Overlap with monitoring Some overlap with system monitoring exists Failures are just a “different kind” of attack Some problems may occur accidentally or intentionally » Example: Blacklisting of mail
    [Show full text]
  • Chapter 5 Results
    CHAPTER 5 RESULTS 5.1 Results This chapter will discuss the results of the testing and comparison of the password cracking tools used. This chapter can be summarized as follows: • Research Data and Result Analysis (Locally) • Research Data and Result Analysis (Remotely) • Research Data and Result Analysis (Alphabets only) • Research Data and Result Analysis (Alphabets and a special character) 5.2 Research Data and Result Analysis (Locally) In Figure 16, Ophcrack was used to crack the local users' password with different combinations of password, alphabets, alphanumeric, alphanumeric special characters, english and non-english words. In Figure 17, Ophcrack was used to crack the same password, but excluding the 3 password that were not cracked in the previous attempt. In Figure 18, Cain was used to crack the local users' password. 35 36 Figure 16 - Ophcrack cracked 7 of 10 passwords Figure 17 - Ophcrack cracked 7 of 7 passwords 37 Figure 18 - Cain cracked 5 of 10 passwords 5.3 Research Data and Result Analysis (Remotely) First, the author scans the network for active IP address with NMAP (Figure 19). He used the command of "nmap -O 192.168.1.1-254" to scan the network, it would scan each IP address for active computer. The command -O enabled operating system detection. From the result of the scanning, there were few ports in the state of open and the services that were using those ports, 135/TCP, 139/TCP, 445/TCP and 1984/TCP. Another important detail was the OS details; it showed that the computer was running under Microsoft Windows XP Professional SP2 or Windows Server 2003.
    [Show full text]
  • Password Security - When Passwords Are There for the World to See
    Password Security - When Passwords are there for the World to see Eleanore Young Marc Ruef (Editor) Offense Department, scip AG Research Department, scip AG [email protected] [email protected] https://www.scip.ch https://www.scip.ch Keywords: Bitcoin, Exchange, GitHub, Hashcat, Leak, OWASP, Password, Policy, Rapid, Storage 1. Preface password from a hash without having to attempt a reversal of the hashing algorithm. This paper was written in 2017 as part of a research project at scip AG, Switzerland. It was initially published online at Furthermore, if passwords are fed through hashing https://www.scip.ch/en/?labs.20170112 and is available in algorithms as is, two persons who happen to use the same English and German. Providing our clients with innovative password, will also have the same hash value. As a research for the information technology of the future is an countermeasure, developers have started adding random essential part of our company culture. user-specific values (the salt) to the password before calculating the hash. The salt will then be stored alongside 2. Introduction the password hash in the user account database. As such, even if two persons use the same password, their resulting The year 2016 has seen many reveals of successful attacks hash value will be different due to the added salt. on user account databases; the most notable cases being the attacks on Yahoo [1] and Dropbox [2]. Thanks to recent Modern GPU architectures are designed for large scale advances not only in graphics processing hardware (GPUs), parallelism. Currently, a decent consumer-grade graphics but also in password cracking software, it has become card is capable of performing on the order of 1000 dangerously cheap to determine the actual passwords from calculations simultaneously.
    [Show full text]
  • Computer Forensics CCIC Training Chapter 4: Understanding the Registry
    Computer Forensics CCIC Training Chapter 4: Understanding the Registry Lauren Pixley, Cassidy Elwell, and James Poirier March 2020 (Version 3) This work by California Cybersecurity Institute is licensed under a Attribution-NonCommercial-NoDerivatives 4.0 International License. Introduction As you are going through your investigation, you will need to know basic information about the forensic image you are searching. To find out more about the image you are analyzing, you will need to look through the Windows Registry. The Windows Registry is basically a database that stores thousands of records with information, such as the operating system, time zone, user settings, user accounts, external storage devices, and some program data. When you look through the Windows Registry in the next section with REGEDIT, it may appear as though the registry is one large storage location. However, there are several files where the information is being stored throughout the computer. REGEDIT simply takes these files and records stored in different locations and displays them for you. There are many records in the Windows Registry that will have no forensic value to you as an examiner, but there are some pieces of information that you will find useful. This chapter will walk you through the basic structure of the registry and where you need to look to find information that is valuable to your investigation. REGEDIT In this section, you will start with the Windows registry utility known as REGEDIT.exe. You can open this by pressing the Windows key+R and then typing in “REGEDIT”. You can also click on the Start menu and type “REGEDIT” in the Search box.
    [Show full text]
  • How to Handle Rainbow Tables with External Memory
    How to Handle Rainbow Tables with External Memory Gildas Avoine1;2;5, Xavier Carpent3, Barbara Kordy1;5, and Florent Tardif4;5 1 INSA Rennes, France 2 Institut Universitaire de France, France 3 University of California, Irvine, USA 4 University of Rennes 1, France 5 IRISA, UMR 6074, France [email protected] Abstract. A cryptanalytic time-memory trade-off is a technique that aims to reduce the time needed to perform an exhaustive search. Such a technique requires large-scale precomputation that is performed once for all and whose result is stored in a fast-access internal memory. When the considered cryptographic problem is overwhelmingly-sized, using an ex- ternal memory is eventually needed, though. In this paper, we consider the rainbow tables { the most widely spread version of time-memory trade-offs. The objective of our work is to analyze the relevance of storing the precomputed data on an external memory (SSD and HDD) possibly mingled with an internal one (RAM). We provide an analytical evalua- tion of the performance, followed by an experimental validation, and we state that using SSD or HDD is fully suited to practical cases, which are identified. Keywords: time memory trade-off, rainbow tables, external memory 1 Introduction A cryptanalytic time-memory trade-off (TMTO) is a technique introduced by Martin Hellman in 1980 [14] to reduce the time needed to perform an exhaustive search. The key-point of the technique resides in the precomputation of tables that are then used to speed up the attack itself. Given that the precomputation phase is much more expensive than an exhaustive search, a TMTO makes sense in a few scenarios, e.g., when the adversary has plenty of time for preparing the attack while she has a very little time to perform it, the adversary must repeat the attack many times, or the adversary is not powerful enough to carry out an exhaustive search but she can download precomputed tables.
    [Show full text]
  • Ophcrack USB Booting Windows Password Recovery for Windows XP Or Vista
    Ophcrack USB Booting Windows Password Recovery for Windows XP or Vista Labels: How To, Password, Solutions, USB BOOT, Windows We have already seen using Ophcrack Live CD for Cracking Windows XP and Windows Vista Passwords. The thing is that now a days we do not use CDs anymore, we use USB drives for our day to day activities. Now what if you want to run Ophcrack from your USB drive instead of wasting money on a CD or if your CD ROM Drive is not working? Moreover using USB drives are more convenient and common these days. Here I have an Ideal solution for this question. But if you are not interested in recovering the password or you simply want to reset or delete the password then there is much easier technique which requires only a 3 MB file instead of Ophcrack. Just see how to Reset windows Password Using a USB drive or a CD In this method we will be using a program called 7-ZIP for extracting the ISO file and some batch files for making the drives bootable. USB Requirement: • Minimum 512 MB for Windows XP • Minimum 1 GB for Windows Vista Or Windows 7 Beta • Format: FAT32 I have tried this method in Windows XP, Windows Vista, and Windows 7 Beta and it works perfectly fine. Follow the steps below: Step 1: Download the ISO File For Ophcrack Live CD 2.1.0 From the links below: (Choose according to your operating system). If you have already downloaded skip this step. Windows XP: Size: 452 MB http://downloads.sourceforge.net/ophcrack/ophcrack-xp-livecd-2.1.0.iso Windows Vista or 7: Size: 532 MB http://downloads.sourceforge.net/ophcrack/ophcrack-vista-livecd-2.1.0.iso Step 2: Download the ZIP File For making USB boot version of Ophcrack Live CD From the link below: Size: 414 KB http://www.techrena.net/downloads/usbboot.zip Step 3: Extract the usbboot.zip file at any location of your computer, not in the USB drive.
    [Show full text]
  • Password Cracking
    Password Cracking Sam Martin and Mark Tokutomi 1 Introduction Passwords are a system designed to provide authentication. There are many different ways to authenticate users of a system: a user can present a physical object like a key card, prove identity using a personal characteristic like a fingerprint, or use something that only the user knows. In contrast to the other approaches listed, a primary benefit of using authentication through a pass- word is that in the event that your password becomes compromised it can be easily changed. This paper will discuss what password cracking is, techniques for password cracking when an attacker has the ability to attempt to log in to the system using a user name and password pair, techniques for when an attacker has access to however passwords are stored on the system, attacks involve observing password entry in some way and finally how graphical passwords and graphical password cracks work. Figure 1: The flow of password attacking possibilities. Figure 1 shows some scenarios attempts at password cracking can occur. The attacker can gain access to a machine through physical or remote access. The user could attempt to try each possible password or likely password (a form of dictionary attack). If the attack can gain access to hashes of the passwords it is possible to use software like OphCrack which utilizes Rainbow Tables to crack passwords[1]. A spammer may use dictionary attacks to gain access to bank accounts or other 1 web services as well. Wireless protocols are vulnerable to some password cracking techniques when packet sniffers are able to gain initialization packets.
    [Show full text]
  • UGRD 2015 Spring Bugg Chris.Pdf (464.4Kb)
    We could consider using the Mighty Cracker Logo located in the Network Folder MIGHTY CRACKER Chris Bugg Chris Hamm Jon Wright Nick Baum Password Security • Password security is important. • Users • Weak and/or reused passwords • Developers and Admins • Choose insecure storage algorithms. • Mighty Cracker • Show real world impact of poor password security. OVERVIEW • We made a hash cracker. • Passwords are stored as hashes to protect them from intruders. • Our program uses several methods to ‘crack’ those hashes. • Networking • Spread work to multiple machines. • Cross Platform OTHER HASH CRACKING PRODUCTS • Hashcat • Cain and Abel • John the Ripper • THC-Hydra • Ophcrack • Network support is rare. WHAT IS HASHING • A way to encode a password to help protect it. • A mathematical one-way function. • MD5 hash • cf4ff726403b8a992fd43e09dd7b5717 • SHA-256 hash • 951e689364c979cc3aa17e6b0022ce6e4d0e3200d1c22dd68492c172241e0623 SUPPORTED HASHING ALGORITHMS • Current Algorithms • MD5 • SHA-1 • SHA-224 • SHA-256 • SHA-384 • SHA-512 WAYS TO CRACK • Cracking Modes • Single User • Network Mode • Methods of Cracking: • Brute Force • Dictionary • Rainbow Table • GUI or Console BRUTE FORCE • Systematically checking all possible keys until the correct one is found. • Worst case this would transverse the entire search space. • Slowest but will always find the solution if given enough time. DICTIONARY ATTACK • List of common passwords from leaks/hacks. • Many people choose common passwords • Written works of Shakespeare ~66,000 words • Oxford English Dictionary ~290,000 words • Small dictionary = 900,000 words • Medium dictionary = 14 million words • Large dictionary = 1.2 billion words RAINBOW TABLE • Can’t store all possible hash/key combinations. • 16 character key = 10^40th combinations • 10^50th atoms on earth • Rainbow tables • Reduced storage.
    [Show full text]
  • Exploiting Host-Based Vulnerabilities
    Exploiting Host-Based Vulnerabilities • Exploit Windows-Based Vulnerabilities • Exploit *nix-Based Vulnerabilities Copyright (c) 2018 CompTIA Properties, LLC. All Rights Reserved. | CompTIA.org 1 Commonalities Among Windows-Based Vulnerabilities (Slide 1 of 2) • OSs and most applications based on C, which has no default bounds-checking. • Susceptible to buffer overflows, arbitrary code execution, and privilege escalation. • Developers need to use security best practices and unit testing. • Proprietary product, so source code is not publicly available. • Fewer reviews open the door for undiscovered weaknesses. • Complexity enables vulnerabilities to remain undetected after release. • Microsoft doesn’t patch all vulnerabilities—they release new versions. • This leaves the vulnerability unaddressed in older installations. Copyright (c) 2018 CompTIA Properties, LLC. All Rights Reserved. | CompTIA.org 2 Commonalities Among Windows-Based Vulnerabilities (Slide 2 of 2) • Servers: Network-based vulnerabilities; workstations: Application-based vulnerabilities. • Uses standard protocols and technologies. • Susceptible to cross-platform exploits. • Physical access puts hosts at greater risk. • Connecting cables to administrative console ports. • Booting to a different OS. • Using removable media. • Stealing and damaging hardware. • Social engineering is required to expose certain vulnerabilities. Copyright (c) 2018 CompTIA Properties, LLC. All Rights Reserved. | CompTIA.org 3 Windows Operating System Vulnerabilities Category Description Remote code execution Any condition that allows attackers to execute arbitrary code. Buffer or heap overflow A programming error that allows attackers to overwrite allocated memory addresses with malicious code. Denial of service Any condition that allows attackers to use resources so that legitimate requests can’t be served. A programming error that allows attackers to access a program’s memory space and hijack the normal Memory corruption execution flow.
    [Show full text]
  • LAB 1 – Cracking Weak Passwords
    LAB 1 – Cracking weak passwords Introduction Password-based authenticaiton is still the most popular metod of access control. Methods based on passwords have numerous advantages: low implementation cost, ease of passwords change, reconfigurability, lack of any external systems to depend on. Passwords can be memorized, so it is not easy to steal them, unlike tokens or ID cards. Passwords are hard to recover, for example by means of reverse engineering, on condition that the password satisfies certain quality criteria. Passwords, which are short or too simple to guess, must not be used. This laboratory session aims to show the vulnerabilities to password-based authentication. We will evaluate passwords, which are too short or too simple. Short phrases or dictionary words must be avoided. This laboratory is not a hacking tutorial – its sole objective is to show, that common software can be used to break a passwod by brute force atatck or to recover it by other means, such as a dictionary attack. The lab also aims to show that strong passwords need to be enforced in all systems as a common security control, by means of an appropriate security policy. The methods and techniques presented here also aim to show administrators a few techniques to test the quality of a password, since a weak password presents considerable vulnerabiblity. Many network attacks follow some repetitive pattern: 1. Step 1: find login name and recover password of any user in the system. Contrary to many expectations, it is not difficult. Many users do not adhere to security principles, unless they are enforced.
    [Show full text]
  • Passwords Topics
    CIT 480: Securing Computer Systems Passwords Topics 1. Password Systems 2. Threat Models: Online, Offline, Side Channel 3. Storing Passwords: Hashing and Salting 4. Examples: UNIX, Windows, Kerberos 5. Password Selection 6. Graphical Passwords 7. One-Time Passwords Authentication System A: set of authentication information – information used by entities to prove identity C: set of complementary information – information stored by system to validate A F: set of complementation functions f : A → C – generate C from A L: set of authentication functions l: A × C→{T,F} – verify identity S: set of selection functions – enable entity to create or alter A or C Password System Example Authenticate with 8-character alphanumeric password. System compares against stored cleartext password. A = [A-Za-z0-9]{8} C = A F = { I } L = { = } Security problem: a threat who gains access to password file knows password for every user. Password Storage Solution: We should store complementary information instead of passwords, so threat doesn’t get every password by stealing one file. Idea #1: Encrypt passwords. – Encrypt passwords with secret key. – Store ciphertext. – Problem: what if attacker finds secret key? Idea #2: Hash passwords. – Store hash value of password. – No Problem: hashes can’t be turned back into passwords. Password System Example #2 Authenticate with 8-character alphanumeric password. System compares with stored MD5 hash of password. A = [A-Za-z0-9]{8} C = 128-bit numbers F = { MD5 } L = { MD5(a)=c } Password Leaks are Common Threat Models 1. Online Attacks – Threat has access to login user interface. – Attack is attempts to guess passwords using the user interface.
    [Show full text]
  • Cracking Passwords Guide
    Cracking Passwords Version 1.1 file:///D:/password10.html Cracking Passwords Version 1.1 by: J. Dravet February 15, 2010 Abstract This document is for people who want to learn to the how and why of password cracking. There is a lot of information being presented and you should READ IT ALL BEFORE you attempted doing anything documented here. I do my best to provide step by step instructions along with the reasons for doing it this way. Other times I will point to a particular website where you find the information. In those cases someone else has done what I attempting and did a good or great job and I did not want to steal their hard work. These instructions have several excerpts from a combination of posts from pureh@te, granger53, irongeek, PrairieFire, RaginRob, stasik, and Solar Designer. I would also like to thank each of them and others for the help they have provided me on the BackTrack forum. I will cover both getting the SAM from inside windows and from the BackTrack CD, DVD, or USB flash drive. The SAM is the Security Accounts Manager database where local usernames and passwords are stored. For legal purposes I am using my own system for this article. The first step is to get a copy of pwdump. You can choose one from http://en.wikipedia.org/wiki/Pwdump . Update: I used to use pwdump7 to dump my passwords, however I have come across a new utility called fgdump from http://www.foofus.net/fizzgig/fgdump/ This new utility will dump passwords from clients and Active Directory (Windows 2000 and 2003 for sure, not sure about Windows 2008) where pwdump7 only dumps client passwords.
    [Show full text]