BlackLotus
Attributions are based on open-source threat reports. A family appearing here means at least one syscall record cites it; absence does not imply non-use.
7 syscalls cited
- NtModifyBootEntry
Replaces an existing BOOT_ENTRY in the Boot Configuration Database with a new descriptor, keyed by its ID.
- NtDeleteBootEntry
Removes a BOOT_ENTRY from the Boot Configuration Database by ID, deleting the corresponding firmware variable on UEFI.
- NtEnumerateBootEntries
Returns a packed array of BOOT_ENTRY structures describing every registered firmware boot option.
- NtQueryBootEntryOrder
Reads the firmware's ordered list of BOOT_ENTRY IDs — the sequence the platform will attempt at next power-on.
- NtSetBootEntryOrder
Writes the firmware boot-attempt order — the array of BOOT_ENTRY IDs the platform will try in sequence.
- NtAddDriverEntry
Registers a new EFI_DRIVER_ENTRY in the firmware so the UEFI environment loads a driver before the OS.
- NtSetSystemEnvironmentValueEx
Writes or deletes a UEFI variable identified by (name, vendor GUID) — the canonical firmware-persistence surface.