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{43925862-ec89-4231-9dfe-7e8c4a7a4b55}w64.sys

kingthink

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {43925862-ec89-4231-9dfe-7e8c4a7a4b55}w64.sys by kingthink has been detected as adware by 17 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{43925862-ec89-4231-9dfe-7e8c4a7a4b55}w64”.
Publisher:
StdLib  (signed by kingthink)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
3c9da0353c459d1fe335ec0cdeff62c3

SHA-1:
5f858c4546f14314fa7bbdcb60a74c970dca77df

SHA-256:
d8968a82db1cf43fed1fc2dcbebf400d2c9b4d9d9eb735139671c62224720ff1

Scanner detections:
17 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
4/24/2024 7:51:10 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.BV
864

Agnitum Outpost
Riskware.NetFilter
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.11.05

AVG
Generic
2015.0.3342

Bitdefender
Adware.SwiftBrowse.BV
1.0.20.1330

Clam AntiVirus
Win.Adware.Swiftbrowse-284
0.98/19588

Dr.Web
hacktool program Tool.NetFilter.1
9.0.1.0266

Emsisoft Anti-Malware
Adware.SwiftBrowse.BV
8.14.09.23.02

F-Prot
W64/A-abca7297
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.BV
11.2014-23-09_3

G Data
Adware.SwiftBrowse.BV
14.9.24

herdProtect (fuzzy)
variant of {0bd9bacb-0a2d-4412-900e-b2473afd87b4}w64.sys (Adware)
2014.12.5.15

MicroWorld eScan
Adware.SwiftBrowse.BV
15.0.0.798

nProtect
Adware.SwiftBrowse.BV
14.11.04.01

Reason Heuristics
PUP.kingthink.m
14.9.23.12

VIPRE Antivirus
Trojan.Win32.Generic
34510

Zillya! Antivirus
Adware.Yotoon.Win64.13
2.0.0.1975

File size:
43.6 KB (44,688 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{43925862-ec89-4231-9dfe-7e8c4a7a4b55}w64.sys

Digital Signature
Signed by:
kingthink

Authority:
VeriSign, Inc.

Valid from:
8/4/2014 5:00:00 PM

Valid to:
8/5/2015 4:59:59 PM

Subject:
CN=kingthink, O=kingthink, L=Santa Monica, 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:
460C442B73452ACE582F3F3040EFEB0B

File PE Metadata
Compilation timestamp:
9/12/2014 4:33:02 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:VgLmaZF8aSQ7DwZmEhzg8ClFHeDrTdRfsQCa5075YLwidH4cW:G5ZEQI8E7ClquaC759EjW

Entry address:
0xB064

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, C6, 60, FF, FF, CC, CC, 38, B2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, B6, 00, 00, 60, 81, 00, 00, 28, B1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, B9, 00, 00, 50, 80, 00, 00, D8, B0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, BA, 00, 00, 00, 80, 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, BA, 00, 00, 00, 00, 00, 00, 86, BA, 00, 00...
 
[+]

Entropy:
6.3729

Code size:
30.5 KB (31,232 bytes)

Driver
Display name:
{43925862-ec89-4231-9dfe-7e8c4a7a4b55}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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