WNBIOS[.]sys | Triage

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General

Target

WNBIOS.sys
Size

30KB
MD5

8f86e05716f5b2bae87704ec7e75bfc3
SHA1

528dae95fd1abbc5e3a51a20836bf38ebb371a35
SHA256

6106d1ce671b92d522144fcd3bc01276a975fe5d5b0fde09ca1cca16d09b7143
SHA512

f1b132a2f4dce6105d73067e3d4cc6007801f32e9999fd5dd6a8b8aefc4eea878466084fd08d4b17862309dcacdc30a4f7243ee99602e064d2151d993af3c319
SSDEEP

384:Te81Y0HertXQnYPLkSX5eMdbyFReblvQyw12tR/PdadGer2VA3/XE3uHLlK:r1YCStXQbXcvwAR/Pfi2ViXE3GLU

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
WNBIOS.sys

Files

WNBIOS.sys
.sys windows:6 windows x64 arch:x64

72374a1c4c0e0db4efcb1386f470a2f3

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

c:\winddk\7600.16385.1\wincor\wnbios1.2.0.0\amd64\wnBios.pdb

Imports

ntoskrnl.exe

RtlInitUnicodeString
IoDeleteDevice
MmFreeContiguousMemory
MmFreeNonCachedMemory
MmGetPhysicalAddress
ZwUnmapViewOfSection
ZwClose
IofCompleteRequest
ZwMapViewOfSection
IoCreateSymbolicLink
ObfDereferenceObject
MmAllocateNonCachedMemory
IoCreateDevice
ZwOpenSection
MmAllocateContiguousMemory
KeBugCheckEx
ObReferenceObjectByHandle
IoDeleteSymbolicLink

hal

HalTranslateBusAddress

Sections

.text
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 512B - Virtual size: 388B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 312B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 512B - Virtual size: 84B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

INIT
Size: 1024B - Virtual size: 810B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 960B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ