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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 1 anti-malware scanner with very strong indications that the file is a potential threat. 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:
942d61a431b5f05573cddf44276da8f3

SHA-1:
c3741691aeea95137385404a652f5caad9dd1e70

SHA-256:
f3d39764036b5f9776dbe1ef28098811d3ccd4d0ec262af6e4950b562a4a99f6

Scanner detections:
1 / 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:
11/23/2024 9:56:45 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.18.18

File size:
59.6 KB (61,072 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 9:00:00 PM

Valid to:
8/5/2015 8:59:59 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:
8/6/2014 8:52:18 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

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

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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