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{a3f28269-ad17-41a8-b032-3e0313ef8979}w64.sys

Greener Web

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {a3f28269-ad17-41a8-b032-3e0313ef8979}w64.sys by Greener Web has been detected as adware by 28 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{a3f28269-ad17-41a8-b032-3e0313ef8979}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 Greener Web)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
5bf945d5706421c0dd702a9bb8bae9fd

SHA-1:
b1a19f8dcb137232f09ab85511ba4db929715fc2

SHA-256:
2bf4cbfdf0f4ec7046eaaae3dbdb6eaf56a1f3770c3970090c5e3352b156f00f

Scanner detections:
28 / 68

Status:
Adware

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

Analysis date:
4/25/2024 4:43:57 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.AZ
827

Agnitum Outpost
Riskware.NetFilter
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.10.07

avast!
Win32:BrowseFox-CG [PUP]
2014.9-141031

AVG
Greenerweb
2015.0.3305

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141031

Bitdefender
Adware.SwiftBrowse.AZ
1.0.20.1520

Clam AntiVirus
Win.Adware.Swiftbrowse-284
0.98/21411

Dr.Web
Trojan.BPlug.123
9.0.1.0304

Emsisoft Anti-Malware
Adware.SwiftBrowse.AZ
8.14.10.31.07

ESET NOD32
Win64/Riskware.NetFilter (variant)
8.10522

Fortinet FortiGate
Adware/Yotoon
10/31/2014

F-Prot
W64/A-abca7297
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.AZ
11.2014-31-10_6

G Data
Adware.SwiftBrowse.AZ
14.10.24

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.7.5.0

Kaspersky
not-a-virus:AdWare.Win64.Yotoon
14.0.0.3019

McAfee
Artemis!5BF945D57064
5600.6961

MicroWorld eScan
Adware.SwiftBrowse.AZ
15.0.0.912

NANO AntiVirus
Riskware.Win64.Yotoon.dfqebc
0.28.2.62483

nProtect
Adware.SwiftBrowse.AZ
14.10.06.01

Panda Antivirus
Trj/CI.A
14.10.31.07

Quick Heal
AdWare.Win64.r6 (Not a Virus)
10.14.14.00

Reason Heuristics
PUP.GreenerWeb.m
14.10.31.6

Sophos
BrowseSmart
4.98

Trend Micro House Call
Suspicious_GEN.F47V0727
7.2.304

VIPRE Antivirus
Trojan.Win32.Generic
33714

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1911

File size:
43.7 KB (44,736 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Common path:
C:\Windows\System32\drivers\{a3f28269-ad17-41a8-b032-3e0313ef8979}w64.sys

Digital Signature
Signed by:
Greener Web

Authority:
VeriSign, Inc.

Valid from:
4/22/2014 8:00:00 AM

Valid to:
4/23/2015 7:59:59 AM

Subject:
CN=Greener Web, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Greener Web, L=Santa Monica, 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:
5AE1591EB6D76718ADCE211DFB4D195B

File PE Metadata
Compilation timestamp:
9/13/2014 7:33:02 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:mgLmaZF8aSQ7DwZmEhzg8ClFHeDrTdRfsQCa5075YLwidHoaEZ/:Z5ZEQI8E7ClquaC759Eu/

Entry address:
0xB064

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, C6, 60, FF, FF, CC, CC, 38, B2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, B6, 00, 00, 60, 81, 00, 00, 28, B1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, B9, 00, 00, 50, 80, 00, 00, D8, B0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, BA, 00, 00, 00, 80, 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, BA, 00, 00, 00, 00, 00, 00, 86, BA, 00, 00...
 
[+]

Entropy:
6.3760

Code size:
30.5 KB (31,232 bytes)

Driver
Display name:
{a3f28269-ad17-41a8-b032-3e0313ef8979}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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