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{2c976a7f-dbdc-4756-870f-f6d183fe7a7e}t.sys

WiseEnhance

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {2c976a7f-dbdc-4756-870f-f6d183fe7a7e}t.sys by WiseEnhance has been detected as adware by 14 anti-malware scanners. It runs as a Windows kernel mode device driver named “{2c976a7f-dbdc-4756-870f-f6d183fe7a7e}t”. 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 WiseEnhance)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
75fe7b7ccc5bc51c58599bd8f187c794

SHA-1:
7ebc120c1f77279d589e6457085bc3a39ffdc408

SHA-256:
3f44c5078411b2e393e38d104afb3be5ed310a1dee793bf4456fd7dd2636b0c2

Scanner detections:
14 / 68

Status:
Adware

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

Analysis date:
4/19/2024 1:56:12 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Wihance
2017.0.2834

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16214

Dr.Web
Trojan.BPlug.117
9.0.1.045

ESET NOD32
Win64/BrowseFox.AI (variant)
10.10617

F-Prot
W32/A-dd00b781
v6.4.7.1.166

G Data
Win32.Application.MegaBrowse
16.2.24

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.6.1.0

McAfee
Artemis!8B7F1D1F54B1
5600.6490

NANO AntiVirus
Trojan.Win32.BPlug.dcxxfx
0.28.2.62841

Reason Heuristics
PUP.Yontoo.WiseEnhance (M)
16.2.14.10

Trend Micro House Call
Suspicious_GEN.F47V0703
7.2.45

Vba32 AntiVirus
AdWare.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
34232

Zillya! Antivirus
Adware.Yotoon.Win64.2
2.0.0.1966

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\{2c976a7f-dbdc-4756-870f-f6d183fe7a7e}t.sys

Digital Signature
Signed by:
WiseEnhance

Authority:
VeriSign, Inc.

Valid from:
1/8/2014 6:00:00 PM

Valid to:
1/9/2015 5:59:59 PM

Subject:
CN=WiseEnhance, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=WiseEnhance, 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:
31A5491EFDDBA1099808F5647A45617E

File PE Metadata
Compilation timestamp:
9/22/2014 2:01:43 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:5o6LohZZMITF7zKLV3fXoKKxaFtFkW4VIWPLqvH9EQZLN+p60Ceo4hD:5o6+pT1UvYDEHFV4nPe/kpvCezhD

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...
 
[+]

Entropy:
6.3460

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{2c976a7f-dbdc-4756-870f-f6d183fe7a7e}t

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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