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{d524939d-dcea-4579-a3d0-67758ac2ff8e}w64.sys

marketresearchhelper

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {d524939d-dcea-4579-a3d0-67758ac2ff8e}w64.sys by marketresearchhelper has been detected as adware by 22 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{d524939d-dcea-4579-a3d0-67758ac2ff8e}w64”. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
StdLib  (signed by marketresearchhelper)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
950659a41d58680df66ba50880edfb3e

SHA-1:
ac27429fd5238adc23366d6de65d9817080bb202

SHA-256:
b2953d5b7d3faf0dcd538bbaec5ba197b8490354f5ffc0a606c76f2746417681

Scanner detections:
22 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/26/2024 1:54:40 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.NetFilter.E
521

Agnitum Outpost
Trojan.BPlug
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2015.03.03

AVG
MalSign.Generic
2016.0.2999

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1591

Bitdefender
Adware.NetFilter.E
1.0.20.1220

Clam AntiVirus
Win.Adware.Swiftbrowse-75
0.98/21511

Dr.Web
Trojan.BPlug.123
9.0.1.0244

Emsisoft Anti-Malware
Adware.NetFilter
8.15.09.01.07

ESET NOD32
Win64/NetFilter.A potentially unsafe (variant)
9.11258

F-Prot
W64/A-e967bae2
v6.4.7.1.166

F-Secure
Adware.NetFilter.E
11.2015-01-09_3

G Data
Adware.NetFilter
15.9.25

herdProtect (fuzzy)
variant of wstlib64.sys (Adware)
2015.10.28.21

MicroWorld eScan
Adware.NetFilter.E
16.0.0.732

nProtect
Adware.NetFilter.E
15.03.02.01

Reason Heuristics
PUP.Yontoo.marketresearchhelper (M)
15.9.1.19

Sophos
Lucky Leap
4.98

Trend Micro House Call
HS_BROWSEFOX.SM
7.2.244

Trend Micro
HS_BROWSEFOX.SM
10.465.01

VIPRE Antivirus
Yontoo
27528

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.2088

File size:
59.7 KB (61,136 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Common path:
C:\Windows\System32\drivers\{d524939d-dcea-4579-a3d0-67758ac2ff8e}w64.sys

Digital Signature
Signed by:
marketresearchhelper

Authority:
VeriSign, Inc.

Valid from:
10/7/2013 3:00:00 AM

Valid to:
10/8/2014 2:59:59 AM

Subject:
CN=marketresearchhelper, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=marketresearchhelper, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
688762C9A09401488B09D9F72D24894B

File PE Metadata
Compilation timestamp:
1/31/2014 2:45:30 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:Oot2dxF9O8ZF33iqiIy938bWp9XcfBvJkowidIz/:O9JRicy938ip9ea1jr

Entry address:
0xF064

Entry point:
48, 83, EC, 28, 4C, 8B, C2, 4C, 8B, C9, E8, 95, FF, FF, FF, 49, 8B, D0, 49, 8B, C9, 48, 83, C4, 28, E9, 2E, 20, FF, FF, CC, CC, 38, F2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, F6, 00, 00, 60, C1, 00, 00, 28, F1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, F9, 00, 00, 50, C0, 00, 00, D8, F0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, FA, 00, 00, 00, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9A, FA, 00, 00, 00, 00, 00, 00, 86, FA, 00, 00...
 
[+]

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{d524939d-dcea-4579-a3d0-67758ac2ff8e}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.