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{70d4f375-9680-4b93-b60c-f3813108bab1}w.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}w.sys by KingBrowse has been detected as adware by 4 anti-malware scanners. It runs as a Windows kernel mode device driver named “{70d4f375-9680-4b93-b60c-f3813108bab1}w”. 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:
27681143d11651a639e9f2df35d93c53

SHA-1:
107731162d9912605a36a465c189820e895370f0

SHA-256:
45a0477d55b9ba568c498f871e205f6e012698572871bcc02dabbd1e0c8c953f

Scanner detections:
4 / 68

Status:
Adware

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

Analysis date:
4/25/2024 9:11:58 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2017.0.2834

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16213

Reason Heuristics
PUP.Yontoo.KingBrowse (M)
16.2.13.18

VIPRE Antivirus
Threat.4150696
31208

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}w.sys

Digital Signature
Signed by:
KingBrowse

Authority:
VeriSign, Inc.

Valid from:
1/8/2014 10:00:00 PM

Valid to:
1/9/2015 9:59:59 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 10:45:28 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:XIsHpnKHCBSqUPJHKQpkJxpKwT2bcWiJmOtX3g2rp3lnLg:YsHRKHLJqQpkYwTsiTtXxtE

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}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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