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{f9d2f209-1697-4837-85f2-d88e4c9f7c81}t.sys

wisen wizard

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {f9d2f209-1697-4837-85f2-d88e4c9f7c81}t.sys by wisen wizard 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 “{f9d2f209-1697-4837-85f2-d88e4c9f7c81}t”.
Publisher:
StdLib  (signed by wisen wizard)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
12007c575f391e5d51d48c1e8fd97d15

SHA-1:
f7f4fed0ef1ea1a6b4c7e3aeaf8e59b4081c5ab4

SHA-256:
b25cef4e7965b48253e2c18bbabd9332a55ae756e0e97e8a541ab81166d7de34

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:
12/23/2024 11:38:21 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.11.0

File size:
54.6 KB (55,872 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\{f9d2f209-1697-4837-85f2-d88e4c9f7c81}t.sys

Digital Signature
Signed by:
wisen wizard

Authority:
VeriSign, Inc.

Valid from:
11/27/2013 2:00:00 AM

Valid to:
11/28/2014 1:59:59 AM

Subject:
CN=wisen wizard, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=wisen wizard, 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:
60C10E74C549776A696451A95399F2D5

File PE Metadata
Compilation timestamp:
9/22/2014 10:01:43 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0xA9BE

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 2A, E4, FF, FF, CC, CC, 34, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, AE, 00, 00, 94, 93, 00, 00, 20, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3A, AE, 00, 00, 80, 93, 00, 00, 2C, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 56, AE, 00, 00, 8C, 93, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 26, AE, 00, 00, 12, AE, 00, 00, 00, 00, 00, 00, 42, AE, 00, 00, 00, 00, 00, 00, 2C, AB, 00, 00, 44, AB, 00, 00, 56, AB...
 
[+]

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{f9d2f209-1697-4837-85f2-d88e4c9f7c81}t

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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