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{50c078f1-4117-4aad-852a-0b3bbfb46b18}w64.sys

qualitink

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {50c078f1-4117-4aad-852a-0b3bbfb46b18}w64.sys by qualitink has been detected as adware by 27 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{50c078f1-4117-4aad-852a-0b3bbfb46b18}w64”. 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 qualitink)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
2e90b410d37ff7e2ac9c66bcce4fa42b

SHA-1:
39beb77051c3e2947650ef4eb4566af19a807a26

SHA-256:
4563af0bbe1895411d6699456727bb3d78f4f6d316a287715fcc28993aab89a0

Scanner detections:
27 / 68

Status:
Adware

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

Analysis date:
4/25/2024 2:18:11 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
361

Agnitum Outpost
Trojan.BPlug
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.08

avast!
Win32:BrowseFox-CS [PUP]
2014.9-160208

AVG
Adware AdPlugin
2017.0.2839

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1628

Bitdefender
Adware.NetFilter.E
1.0.20.195

Bkav FE
W64.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/20570

Dr.Web
Trojan.Yontoo.1734
9.0.1.039

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
8.16.02.08.05

F-Prot
W64/A-a8e2f748
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.CH
11.2016-08-02_2

G Data
Adware.NetFilter
16.2.24

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.6.1.0

K7 AntiVirus
Adware
13.205.16253

McAfee
Artemis!714DFE7CFF6A
5600.6495

MicroWorld eScan
Adware.NetFilter.E
17.0.0.117

Norman
Adware.SwiftBrowse.CH
11.20160208

nProtect
Adware.NetFilter.E
14.09.18.01

Panda Antivirus
Trj/CI.A
16.02.08.05

Reason Heuristics
PUP.Yontoo.qualitink (M)
16.2.8.17

Sophos
PUA 'BrowseSmart' (of type Adware)
58

SUPERAntiSpyware
Adware.BrowseFox/Variant
9336

Trend Micro House Call
Suspicious_GEN.F47V0615
7.2.39

VIPRE Antivirus
Trojan.Win32.Generic
30548

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1913

File size:
59.7 KB (61,112 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{50c078f1-4117-4aad-852a-0b3bbfb46b18}w64.sys

Digital Signature
Signed by:
qualitink

Authority:
VeriSign, Inc.

Valid from:
9/19/2013 5:00:00 AM

Valid to:
9/20/2015 4:59:59 AM

Subject:
CN=qualitink, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=qualitink, 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:
0E5E2B6947A31815C876634E7DEC4B4E

File PE Metadata
Compilation timestamp:
1/31/2014 5:45:30 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:Vot2dxF9O8ZF33iqiIy938bWp9XcfBvJkowidInX:V9JRicy938ip9ea1jX

Entry address:
0xF064

Entry point:
48, 83, EC, 28, 4C, 8B, C2, 4C, 8B, C9, E8, 95, FF, FF, FF, 49, 8B, D0, 49, 8B, C9, 48, 83, C4, 28, E9, 2E, 20, FF, FF, CC, CC, 38, F2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, F6, 00, 00, 60, C1, 00, 00, 28, F1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, F9, 00, 00, 50, C0, 00, 00, D8, F0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, FA, 00, 00, 00, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9A, FA, 00, 00, 00, 00, 00, 00, 86, FA, 00, 00...
 
[+]

Entropy:
5.9634

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{50c078f1-4117-4aad-852a-0b3bbfb46b18}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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