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{43925862-ec89-4231-9dfe-7e8c4a7a4b55}t.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}t.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 kernel mode device driver named “{43925862-ec89-4231-9dfe-7e8c4a7a4b55}t”.
Publisher:
StdLib  (signed by kingthink)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
080dd88fe5d234b3c726735230cfd8f9

SHA-1:
7e91ac15349cde1521421564afac266766770658

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:
11/5/2024 8:26:18 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.10.5

File size:
53.8 KB (55,056 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

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

Digital Signature
Signed by:
kingthink

Authority:
VeriSign, Inc.

Valid from:
8/5/2014 2:00:00 AM

Valid to:
8/6/2015 1:59:59 AM

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:
8/7/2014 1:52:31 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0xA6BE

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 4A, E4, FF, FF, CC, CC, 34, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, AB, 00, 00, 94, 90, 00, 00, 20, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3A, AB, 00, 00, 80, 90, 00, 00, 2C, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 56, AB, 00, 00, 8C, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 26, AB, 00, 00, 12, AB, 00, 00, 00, 00, 00, 00, 42, AB, 00, 00, 00, 00, 00, 00, 2C, A8, 00, 00, 44, A8, 00, 00, 56, A8...
 
[+]

Code size:
36.3 KB (37,120 bytes)

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

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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