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สำนักงานพัฒนาธุรกรรมทางอิเล็กทรอนิกส์ Electronic Transactions Development Agency |
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สำนักงานพัฒนาธุรกรรมทางอิเล็กทรอนิกส์ Electronic Transactions Development Agency |
Tool: FudModule| Names | FudModule | |
| Category | Malware | |
| Type | Rootkit | |
| Description | (Avast) The entire goal of the admin-to-kernel exploit was to corrupt the current thread’s PreviousMode. This allows for a powerful kernel read/write primitive, where the affected user-mode thread can read and write arbitrary kernel memory using the Nt(Read|Write)VirtualMemory syscalls. Armed with this primitive, the FudModule rootkit employs direct kernel object manipulation (DKOM) techniques to disrupt various kernel security mechanisms. It’s worth reiterating that FudModule is a data-only rootkit, meaning it executes entirely from user space and all the kernel tampering is performed through the read/write primitive. | |
| Information | <https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/> <https://download.ahnlab.com/global/brochure/Analysis-Report-on-Lazarus-Groups-Rootkit-Attack-Using-BYOVD.pdf> <https://www.virusbulletin.com/uploads/pdf/conference/vb2022/papers/VB2022-Lazarus-and-BYOVD-evil-to-the-Windows-core.pdf> | |
| Malpedia | <https://malpedia.caad.fkie.fraunhofer.de/details/win.fudmodule> | |
Last change to this tool card: 07 March 2024
Download this tool card in JSON format
| Changed | Name | Country | Observed | ||
APT groups | |||||
 | Lazarus Group, Hidden Cobra, Labyrinth Chollima |  | 2007-Feb 2024  |  | |
1 group listed (1 APT, 0 other, 0 unknown)
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