BitLocker is one of the most advanced and most commonly used volume encryption solutions. BitLocker is well-studied and extensively documented solution with few known vulnerabilities and a limited number of possible vectors of attack. BitLocker volumes may be protected with one or more protectors such as the hardware-bound TPM, user-selectable password, USB key, or combination thereof. Attacking the password is only possible in one of these cases, while other protectors require a very different set of attacks. Learn how to approach BitLocker volumes depending on the type of protector.
When attacking a password, the traditional forensic workflow requires uploading the entire encrypted file or document into a password recovery tool. This approach, while simple and intuitive, has one major drawback if you are using remote computers or cloud instances to perform an attack. If the remote computer is compromised, the entire file or document is leaked complete with its (still encrypted) contents. Learn how to overcome this issue and perform remote attacks without the reason of leaking personal information.
Accessing a locked system is always a challenge. While you might be tempted to pull the plug and image the disk, you could miss a lot of valuable evidence if you do. Full-disk encryption, EFS-encrypted files and folders and everything protected with DPAPI (including the passwords stored in most modern Web browsers) are just a few obstacles to mention. Recovering the original Windows logon is a must to access the full set of data, while resetting the logon password may help unlock working accounts in emergencies.
Modern encryption tools employ strong encryption with multiple hash iterations, making passwords extremely difficult to break. The November article “What is password recovery and how it is different from password cracking” explains the differences between instantly accessing protected information and attempting to break the original plain-text password. In that article, I briefly mentioned GPU acceleration and distributed attacks as methods to speed up the recovery. In this article, I’ll discuss the two acceleration techniques in more detail.
Password managers or password reuse? This is the question faced by most consumers. Reusing a password or its minor variations for different accounts has never been a good idea, yet in today’s world of online everything the rate of password reuse reaches astonishing values. Using a password manager helps reduce password reuse, supposedly offering increased security. In this article, we’ll perform forensic analysis of some of the most common password managers.
Modern applications use highly secure and thus deliberately slow algorithms for verifying passwords. For this reason, the password recovery process may take a lot of time and require extreme computational resources. You can build your own powerful cluster to accelerate brute-force attacks, but if you only need to recover a password every once in a while, maintaining your own cluster may not be the best investment. Cloud services can help do a one-off job faster. For a long time, Elcomsoft Distributed Password Recovery had supported Amazon cloud services with automatic deployment on Amazon’s powerful GPU-accelerated servers. The latest update brings support for Microsoft Azure, adding the ability to automatically deploy Password Recovery Agents to virtual machines created in Microsoft Azure. In this article I will describe the deployment steps.
Why wasting time recovering passwords instead of just breaking in? Why can we crack some passwords but still have to recover the others? Not all types of protection are equal. There are multiple types of password protection, all having their legitimate use cases. In this article, we’ll explain the differences between the many types of password protection.
The first Microsoft Office product was announced back in 1988. During the past thirty years, Microsoft Office has evolved from a simple text editor to a powerful combination of desktop apps and cloud services. With more than 1.2 billion users of the desktop Office suite and over 60 million users of Office 365 cloud service, Microsoft Office files are undoubtedly the most popular tools on the market. With its backward file format compatibility, Microsoft Office has become a de-facto standard for documents interchange.
In Apple’s world, the keychain is one of the core and most secure components of macOS, iOS and its derivatives such as watchOS and tvOS. The keychain is intended to keep the user’s most valuable secrets securely protected. This includes protection for authentication tokens, encryption keys, credit card data and a lot more. End users are mostly familiar with one particular feature of the keychain: the ability to store all kinds of passwords. This includes passwords to Web sites (Safari and third-party Web browsers), mail accounts, social networks, instant messengers, bank accounts and just about everything else. Some records (such as Wi-Fi passwords) are “system-wide”, while other records can be only accessed by their respective apps. iOS 12 further develops password auto-fill, allowing users to utilize passwords they stored in Safari in many third-party apps.
GPU acceleration is the thing when you need to break a password. Whether you use brute force, a dictionary of common words or a highly customized dictionary comprised of the user’s existed passwords pulled from their Web browser, extracted from their smartphone or downloaded from the cloud, sheer performance is what you need to make the job done in reasonable time.