![]() We uncovered critical inconsistencies with the logic of this ransomware upon our first interaction with a LockBit 2.0 afflicted customer, who, incidentally, also purchased the software capable of restoring the destruction the ransomware is known to wreak, known as "the decryptor" aspect of ransomware. This two-part blog series will outline all the steps taken and challenges overcome, in order to restore the damaged database files that served as a critical core of this customer’s infrastructure. This is often an impossible task to carry out, given that it implies breaking decades of practical research into cryptography- not simply in theory, but in actual implementation. This post illustrates a much more direct attempt at ransomware recovery targeting MSSQL databases, where we uncovered and further exploited bugs present in the LockBit 2.0 ransomware code, up to the point where we were able to revert the encryption process for these database files and restore them back to a functioning state. All these public reports and technical undertakings, however, fail to mention a critical aspect of this ransomware strain that Microsoft Incident Response researchers have discovered and is something often not discussed when bringing up the topic of ransomware: “buggy code”, and the unpredictable consequences that it can induce. Suffice it to say, a plethora of detailed research around this ransomware emerged as a result of version "2.0", which surfaced back in the summer of 2021. Recently, the FBI issued a flash alert outlining the technical aspects and tactics, techniques, and procedures (TTPs) associated with the LockBit 2.0 affiliate-based ransomware-as-a-service. LockBit 2.0 ransomware has been one of the leading ransomware strains over the last six months. Therefore, the use or reliance of any information contained in this article is solely at your own risk. We do not provide any kind of guarantee of a certain outcome or result based on the information provided. Accordingly, before taking any action based upon such information, we encourage you to consult with the appropriate professionals. Click on next and run the DART software.Ħ.Click on next and the DART will start to collect the information, by default the bundle will be saved on the desktop.Research by: Nino and Team Torstino (Microsoft Incident Response (formerly DART/CRSP))ĭisclaimer : The technical information contained in this article is provided for general informational and educational purposes only and is not a substitute for professional advice. Here is an example for the graphical version:ĥ. The files can be found on the directory /opt/cisco/anyconnect/dart/ You can either run the "dartcli" script from the console or the "dartui" file for a graphical version. Accept the license agreement to finish the installation of the tool.Ĥ. Drive to the DART folder inside the Anyconnect folder created, install the tool with the command sudo. Unzip the DART tool with the tar xvzf syntax.Ģ. Encrypt the DART bundle with a password (optional) and run the tool, it will be saved on the desktop by default.ġ. Launch the DART tool from the Cisco Anyconnect Secure Mobility Client.Ģ. The DART tool will finish automatically and the bundle will be saved on the desktop by default.ġ. Click Next and the DART tool will start to collect the information.Ĥ. Make sure to mark the option "clear logs after DART finishes" and select either the Default or Customer location to save the bundle.ģ. Launch the DART tool and click on Next.Ģ. The DART file can be found on the same Anyconnect folder.ġ. Once the client has been installed, you can follow the step to get the DART file from the PC. Or can be dynamically deployed to the user, configuring the module under the group -policyĪSA(config-group-webvpn)# anyconnect modules value dart The file can be found inside the following packages:Īnyconnect-dart-win-x.x.xxxx-k9.msi WindowsĪnyconnect-macosx-i386-x.x.xxxxx-k9.dmg MACĪnyconnect-predeploy-linux-64-x.x. Linux You can download the DART file from the following links: DART supports Windows,MAC and Linux.ĭART is currently available as a standalone installation, or the administrator can push this application to the client PC as part of the An圜onnect dynamic infrastructure.Īny version of DART works with any version of An圜onnect. DART is the An圜onnect Diagnostics and Reporting Tool that you can use to collect data useful for troubleshooting An圜onnect installation and connection problems.
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