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CSUFD.sys

Cirrus Filter Driver

WDKTestCert dev

It runs as a Windows 64-bit kernel mode device driver named “CS42xxUpperFilter”.
Publisher:
Cirrus Logic Inc.  (signed by WDKTestCert dev)

Product:
Cirrus Filter Driver

Description:
Cirrus Logic HDAudio upper filter driver

Version:
6.13.1.32

MD5:
32808a62f2dae4c967cc7202c18d7b12

SHA-1:
aff2d878c461dcf78fd2c5a5c3127b0f4b54f119

SHA-256:
726518cbc163af050fe22911aea2b6e144c63d13cd1ddce3ae51ba5460f98515

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
5/17/2025 10:22:53 AM UTC  (today)

File size:
13.2 KB (13,496 bytes)

Product version:
6.13.1.32

Copyright:
Copyright (c) 2011-2014 Cirrus Logic Inc. All rights reserved.

Original file name:
CSUFD.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\csufd.sys

Digital Signature
Signed by:
WDKTestCert dev

Authority:
WDKTestCert dev

Valid from:
8/23/2012 3:05:56 PM

Valid to:
8/22/2022 5:00:00 PM

Subject:
CN="WDKTestCert dev,129902331557930178"

Issuer:
CN="WDKTestCert dev,129902331557930178"

Serial number:
635CCBEB60748DB240B74C9B9EF0A0A0

File PE Metadata
Compilation timestamp:
10/22/2014 4:26:32 PM

OS version:
6.3

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
12.0

CTPH (ssdeep):
192:7Jw9l0H29Tthy5JhDKU8o7rsmFKYgrHXBIsgswx4LrSMi12:7JY0H29Tthy5JlMo7rsiaHRI

Entry address:
0x1FA0

Entry point:
48, 89, 5C, 24, 08, 57, 48, 83, EC, 20, 48, 8B, DA, 48, 8B, F9, E8, E7, 60, 00, 00, 48, 8B, D3, 48, 8B, CF, 48, 8B, 5C, 24, 30, 48, 83, C4, 20, 5F, E9, 02, 00, 00, 00, CC, CC, 48, 89, 5C, 24, 08, 48, 89, 6C, 24, 10, 48, 89, 74, 24, 18, 57, 48, 83, EC, 20, 33, ED, 48, 8B, F2, 48, 8B, F9, 48, 85, C9, 75, 0A, E8, 0E, 60, 00, 00, E9, E0, 00, 00, 00, 48, 89, 0D, 4A, 2E, 00, 00, 48, 8D, 05, 5B, 2E, 00, 00, 48, 8D, 0D, 5C, 30, 00, 00, 48, 89, 05, 5D, 30, 00, 00, C7, 05, 4B, 30, 00, 00, 00, 00, 08, 02, FF, 15, 55...
 
[+]

Entropy:
5.4157

Code size:
7 KB (7,168 bytes)

Driver
Display name:
CS42xxUpperFilter

Service name:
CirrusUFD

Type:
Kernel device driver (KernelDriver)


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