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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:
d2bf7c00b26d2de1d1265e40ae0b7755

SHA-1:
db137dd56ad1c60fc19ab474d20b56f2a1356883

SHA-256:
a18d3377ac92925894964d3ba3e119e85dbfff0ec133d33f172112ff2bae282d

Scanner detections:
28 / 68

Status:
Adware

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

Analysis date:
4/26/2024 10:18:58 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.AZ
832

Agnitum Outpost
Trojan.BPlug
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.04

avast!
Win32:BrowseFox-CG [PUP]
141025-0

AVG
Greenerweb
2015.0.3310

Baidu Antivirus
Adware.Win64.Yotoon
4.0.3.141025

Bitdefender
Adware.SwiftBrowse.AZ
1.0.20.1490

Clam AntiVirus
Win.Adware.Swiftbrowse-75
0.98/21411

Dr.Web
Trojan.BPlug.123
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.AZ
14.10.25

ESET NOD32
Win64/Riskware.NetFilter (variant)
8.10583

Fortinet FortiGate
Adware/Yotoon
10/25/2014

F-Prot
W64/A-7883d091
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.AZ
11.2014-25-10_7

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
15.0.0.494

McAfee
Artemis!69806B4CA159
5600.6966

MicroWorld eScan
Adware.SwiftBrowse.AZ
15.0.0.894

NANO AntiVirus
Riskware.Win64.Yotoon.ddmbaz
0.28.2.61942

nProtect
Adware.SwiftBrowse.AZ
14.09.03.01

Panda Antivirus
Trj/Chgt.C
14.10.25.07

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

Reason Heuristics
PUP.GreenerWeb.m
14.10.25.19

Sophos
BrowseSmart
4.98

Trend Micro House Call
Suspicious_GEN.F47V0727
7.2.298

VIPRE Antivirus
Trojan.Win32.Generic
32766

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1911

File size:
59.7 KB (61,120 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\{a3f28269-ad17-41a8-b032-3e0313ef8979}w64.sys

Digital Signature
Signed by:
Greener Web

Authority:
VeriSign, Inc.

Valid from:
4/22/2014 3:00:00 AM

Valid to:
4/23/2015 2:59:59 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:
1/31/2014 2:45:30 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:zot2dxF9O8ZF33iqiIy938bWp9XcfBvJkowidILaEL:z9JRicy938ip9ea1jp

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...
 
[+]

Code size:
46.5 KB (47,616 bytes)

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

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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