V00 and /s.v00, and in fact starts up without triggering an exception!
First, most of the malware uses an internal (NSA) codename in the realms of gods, such as deitybounce, godsurge, etc.
You have to pay attention to the fact that PCI expansion ROM also includes PCIe expansion ROM, because both are virtually the same.The target OS contains a vulnerability or malware after steps 1 and 2 in deitybounce second stage execution.Gnvs or acpi NVS is part of RAM managed by the acpi subsystem in the bios.Figure 3 deitybounce configuration data related to the custom interrupt 13h handler is stored in the perc raid controller nvram.A Closer Look at Dell Power-Edge Hardware.These details provide a lot more valuable hints than you windows 7 scanning software pdf think :-).At this point we already know the deitybounce malware components.Figure 2 deitybounce Execution Stage 1 deitybounce stage 1 execution, shown in Figure 2, happens during the PCI expansion ROM initialization stage at post.However, you should be aware that this is only the result of my preliminary assessment on deitybounce.
There are several steps in this execution stage, as follows: The mainboard bios executes the perc raid controller PCI expansion ROM routine at bootstrap via interrupt 19h (bootstrap).
However, in some patent descriptions, NVS stands for non-volatile sleeping memory because the memory region occupied by NVS in RAM stores data thats preserved even if the system is in sleep mode.
These are the assumptions: The bios used by the Dell PowerEdge targets is a legacy bios, not EFI/uefi.
The Phrack article contains knowledge required to understand how an SMM rootkit might work.
When starting the server I selected the bios boot order and selected the USB flash drive, but received a boot error.
Mind you, this is not the PowerEdge server motherboard flash ROM but the perc raid controller (exclusive) flash ROM.This is the case with this type of malware because it is very hard to detect and remove, even with the most sophisticated anti-malware tools, during its possible deployment timeframe.Prev, next, how can I make a backup for the UID's and GID's with ACL's.The nvram is located in the perc adapter board, except when the perc is integrated into the motherboard.Entering SMM via software SMI in x86/x64 is quite simple.There are several types of perc raid controllers.Thats why its already present in smram early.Figure 3 deitybounce Execution Stage 2 Now, lets move to stage 2 of deitybounce execution.This should make it easier to pinpoint the technical details of deitybounce.