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New Jupyter Infostealer Version Emerges with Sophisticated Stealth Tactics
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<blockquote data-quote="Andy Ful" data-source="post: 1064324" data-attributes="member: 32260"><p>Another example of using PowerShell in the attack started by the initial EXE/MSI files is LummaC2 stealer analyzed also by VMware Carbon Black (in October 2023):</p><p>[URL unfurl="true"]https://blogs.vmware.com/security/2023/10/an-ilummanation-on-lummastealer.html[/URL]</p><p></p><p>It uses another set of popular methods (blocked by Constrained Language Mode) to download a payload:</p><p>[Net.Webrequest]::Create()</p><p>New-Object Net.WebClient</p><p></p><p>Edit.</p><p>As in the previous article about Jupyter Infostealer, the authors from <a href="https://blogs.vmware.com/security/" target="_blank">VMware Security Blog</a> claim that Carbon Black can be efficient for the detection, prevention, and containment of such malware. We should take it with a grain of salt. Other AVs can use similar ATP methods. For example, Bitdefender can often block the PowerShell process spawned by an EXE file.</p></blockquote><p></p>
[QUOTE="Andy Ful, post: 1064324, member: 32260"] Another example of using PowerShell in the attack started by the initial EXE/MSI files is LummaC2 stealer analyzed also by VMware Carbon Black (in October 2023): [URL unfurl="true"]https://blogs.vmware.com/security/2023/10/an-ilummanation-on-lummastealer.html[/URL] It uses another set of popular methods (blocked by Constrained Language Mode) to download a payload: [Net.Webrequest]::Create() New-Object Net.WebClient Edit. As in the previous article about Jupyter Infostealer, the authors from [URL='https://blogs.vmware.com/security/']VMware Security Blog[/URL] claim that Carbon Black can be efficient for the detection, prevention, and containment of such malware. We should take it with a grain of salt. Other AVs can use similar ATP methods. For example, Bitdefender can often block the PowerShell process spawned by an EXE file. [/QUOTE]
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