![]() The naming convention for the payload is:Įxamples can be found in the IOCs section under the heading “MSI Payload Names.” MSI Third-Party Installer Wizard This allows the payload to thwart online AV scanners. Like previous Jupyter payloads, the size of the MSI payloads is consistently over 100MBs. ![]() This is based on the six variants that we have observed. In this section, we will briefly examine some of the payload`s shared attributes in order to get an overview of what indicators to expect. The blog post that follows outlines the new delivery chain, showcasing how threat actors continue to develop their attacks to become more efficient and evasive.Įditor's Note: This blog post has been updated as per the request of Advanced Installer.įigure 1: The attack flow of the new Jupyter infostealer The MSI Payload We are currently investigating the scope of the campaign. Following this discovery, the Morphisec Labs team has been made aware of multiple high-level targets that are under threat from the Jupyter infostealer. Then, on 8 September 2021, we identified a new delivery chain within Jupyter that passes under the radar of security solutions. ![]() It has continued to receive very low to zero detections in the VirusTotal database, maintaining the ability to bypass detection solutions. Since that time, Jupyter has remained active and highly evasive. ![]() NET attack that primarily targets Chromium, Firefox, and Chrome browser data while also maintaining the additional capabilities of a backdoor. In 2020, Morphisec introduced the Jupyter infostealer, a. ![]()
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