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{70d4f375-9680-4b93-b60c-f3813108bab1}gw.sys

KingBrowse

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {70d4f375-9680-4b93-b60c-f3813108bab1}gw.sys by KingBrowse has been detected as adware by 11 anti-malware scanners. It runs as a Windows kernel mode device driver named “{70d4f375-9680-4b93-b60c-f3813108bab1}Gw”. 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 KingBrowse)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
f0e02fa8c1d15da31cb577abdc5cb88f

SHA-1:
8b764b4ffd5373be9c5925da298c4f505e1640c3

SHA-256:
a8359a49c9b3a1d9b1159a6b8e5d001ab19744214fba6cf9234f7227d7026b0b

Scanner detections:
11 / 68

Status:
Adware

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

Analysis date:
4/26/2024 7:27:11 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Yotoon
7.1.1

AVG
MalSign.Generic
2017.0.2835

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16212

Dr.Web
Trojan.BPlug.123
9.0.1.043

McAfee
Artemis!E26540507F16
5600.6491

NANO AntiVirus
Riskware.Win32.Yotoon.ddghtt
0.28.2.61942

Reason Heuristics
PUP.Yontoo.KingBrowse (M)
16.2.12.13

Trend Micro House Call
Suspicious_GEN.F47V0819
7.2.43

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
32814

Zillya! Antivirus
Adware.Yotoon.Win64.1
2.0.0.1912

File size:
51.7 KB (52,928 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\{70d4f375-9680-4b93-b60c-f3813108bab1}gw.sys

Digital Signature
Signed by:
KingBrowse

Authority:
VeriSign, Inc.

Valid from:
1/8/2014 9:00:00 PM

Valid to:
1/9/2015 8:59:59 PM

Subject:
CN=KingBrowse, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=KingBrowse, 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:
670CAB2C338090653CEA8172D5DB1E34

File PE Metadata
Compilation timestamp:
1/30/2014 9:45:28 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:DIsHpnKHCBSqUPJHKQpkJxpKwT2bcWiJmOtX3g2rp3lnLg:8sHRKHLJqQpkYwTsiTtXxtE

Entry address:
0xC03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 62, 50, FF, FF, CC, CC, 74, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BC, C4, 00, 00, C0, A0, 00, 00, B4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 12, C5, 00, 00, 00, A0, 00, 00, EC, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, AE, C8, 00, 00, 38, A0, 00, 00, C4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, C9, 00, 00, 10, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, EA, C4, 00, 00, FE, C4, 00, 00, D6, C4...
 
[+]

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{70d4f375-9680-4b93-b60c-f3813108bab1}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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