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{735c7dda-e3b7-44f2-8521-a39cc0d289b2}gt.sys

DoughGo

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {735c7dda-e3b7-44f2-8521-a39cc0d289b2}gt.sys by DoughGo has been detected as adware by 10 anti-malware scanners. It runs as a Windows kernel mode device driver named “{735c7dda-e3b7-44f2-8521-a39cc0d289b2}Gt”. 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 DoughGo)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
f4d009e9345a5c109acf18494ce2421d

SHA-1:
8aa5fc7dc14e4d9029ac708eebb2962fbbc866f4

SHA-256:
4ae183f7fd5e8b414066a69227cda1c86c4829263fc8c7038529d13f96363ac7

Scanner detections:
10 / 68

Status:
Adware

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

Analysis date:
4/19/2024 10:49:11 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2016.0.3225

Baidu Antivirus
Adware.Win64.BrowseFox
4.0.3.15118

Bkav FE
W32.BrowseFoxM.Adware
1.3.0.6379

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
20760

ESET NOD32
Win64/BrowseFox.AL potentially unwanted application
7.0.302.0

F-Prot
W32/A-dd00b781
v6.4.7.1.166

Reason Heuristics
PUP.Yontoo.DoughGo
15.1.18.21

Vba32 AntiVirus
AdWare.Yotoon
3.12.26.3

VIPRE Antivirus
Threat.4150696
36694

Zillya! Antivirus
Adware.Yotoon.Win64.2
2.0.0.2039

File size:
53.9 KB (55,224 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\{735c7dda-e3b7-44f2-8521-a39cc0d289b2}gt.sys

Digital Signature
Signed by:
DoughGo

Authority:
VeriSign, Inc.

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

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

Subject:
CN=DoughGo, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=DoughGo, 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:
43D6FB9D3D742CDE988B02EC2BD25188

File PE Metadata
Compilation timestamp:
1/30/2014 6:46:38 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:V7bP7EDNtMTw/RWDjR/McKV5qEXGBJgxgZ+4AOmvtnBU6+RRgD:1P7EJSTukuzTrGYs+JNBUtRO

Entry address:
0xA73E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, CA, E3, FF, FF, CC, CC, B4, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 84, AB, 00, 00, 94, 90, 00, 00, A0, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BA, AB, 00, 00, 80, 90, 00, 00, AC, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D6, 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, A6, AB, 00, 00, 92, AB, 00, 00, 00, 00, 00, 00, C2, AB, 00, 00, 00, 00, 00, 00, AC, A8, 00, 00, C4, A8, 00, 00, D6, A8...
 
[+]

Entropy:
6.3486

Code size:
36.3 KB (37,120 bytes)

Driver
Display name:
{735c7dda-e3b7-44f2-8521-a39cc0d289b2}Gt

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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