Unit 42 researchers observed the Quasar RAT being prevented from executing on a Traps-protected client in September We observed. Your browser does not currently recognize any of the video formats available. Click here to visit our frequently. Remote Administration Tool for Windows. Contribute to QuasarRAT development by creating an account on GitHub. Tests Tests added for packet registeration for serialization Jul 27, Server Fixed some images in wrong directory Oct 3, Detection Unit 42 researchers observed the Quasar RAT being prevented from executing on a Traps-protected client in September Left yellow is DustySky infrastructure Figure 4 and the links to this Downeks campaign. CopyTo new CryptoStream src, decryptor, CryptoStreamMode. Quasar is designed to remotely manage computers by allowing the ability to dynamically generate custom clients that connect to the specified server. DustySky is a campaign which others have attributed to the Gaza Cybergang group, a group that targets government interests in the region. We observe many behavioral similarities and unique strings across both the native-Downeks versions, and the new. This action leads to the installation of Quasar RAT, a. After the TCP handshake completes, the server starts another handshake with the client by sending packets in the following order Figure The serialization assigns unique IDs for serializable objects types. However, based upon the timeframe of subsequent telemetry we observe, we understand the attack chain as follows: Begin renaming xRAT to Quasar. Begin renaming xRAT to Quasar. Unit 42 researchers observed the Quasar RAT being prevented from executing on a Traps-protected client in September View all posts by David Bisson. You signed out in another tab or window. In some cases these objects are completely different, for example the server commands to get the file system. This is a pseudo-unique ID for each machine, based on install date taken from the registry, volume serial number, OS version and service pack, Processor architecture, and computer name. SetValue pacTypeInstance , clientSentValue ;. CopyTo new CryptoStream src , decryptor , CryptoStreamMode. Immediately when the File Manager window is opened by the attacker, the Quasar server sends two commands to the RAT: One of the first operations we heard about occurred on November 17, , when Shamoon resurfaced and leveraged Disstrack malware to wipe the computers at an energy organization based in Saudi Arabia. Although Downeks has been publicly examined to some extent, our analysis found several features not previously described.