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{f3daddfc-782d-4450-a020-ed3b44858e01}gw64.sys

Browser Good

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {f3daddfc-782d-4450-a020-ed3b44858e01}gw64.sys by Browser Good has been detected as adware by 21 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{f3daddfc-782d-4450-a020-ed3b44858e01}Gw64”.
Publisher:
StdLib  (signed by Browser Good)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
550c07083d6a2ccd9d8e7b160633af1c

SHA-1:
fc2c2360dc7ad1f394d43c006d5f468c3aa72371

SHA-256:
0fe082d323b665802543f848c3bbabfe5c3988b9ef32f15c3aef8bbea3c320c0

Scanner detections:
21 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
4/25/2024 4:14:31 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
705

Agnitum Outpost
Riskware.Agent
7.1.1

AVG
Generic
2016.0.3183

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.305

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/21511

Dr.Web
Tool.NetFilter.313
9.0.1.061

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
8.15.03.02.03

ESET NOD32
Win64/Komodia.A potentially unsafe (variant)
9.11242

F-Prot
W64/A-59c9c70a
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.CH
11.2015-02-03_2

G Data
Adware.SwiftBrowse.CH
15.3.25

K7 AntiVirus
Adware
13.1915104

McAfee
Artemis!550C07083D6A
5600.6839

MicroWorld eScan
Adware.SwiftBrowse.CH
16.0.0.183

NANO AntiVirus
Riskware.Win64.NetFilter.dogedz
0.30.0.296

nProtect
Adware.SwiftBrowse.CH
15.02.27.01

Reason Heuristics
PUP.Yontoo
15.3.2.3

Trend Micro House Call
Suspicious_GEN.F47V0222
7.2.61

Trend Micro
HS_BROWSEFOX.SM
10.465.02

VIPRE Antivirus
Trojan.Win32.Generic
37958

Zillya! Antivirus
Adware.Yotoon.Win64.14
2.0.0.2083

File size:
47.6 KB (48,792 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{f3daddfc-782d-4450-a020-ed3b44858e01}gw64.sys

Digital Signature
Signed by:
Browser Good

Authority:
VeriSign, Inc.

Valid from:
11/20/2014 1:00:00 AM

Valid to:
11/21/2015 12:59:59 AM

Subject:
CN=Browser Good, O=Browser Good, 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:
415A9A4B07BAA4A4F09FB5982A7CFAFB

File PE Metadata
Compilation timestamp:
2/22/2015 1:32:46 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:ls7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3nqOr:CFID6EGnLA8AFJTNEVmD

Entry address:
0xC064

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, E2, 50, FF, FF, CC, CC, 78, C2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 54, C6, 00, 00, A0, 91, 00, 00, 28, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, DA, CA, 00, 00, 50, 90, 00, 00, D8, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D2, CB, 00, 00, 00, 90, 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, B6, CB, 00, 00, 00, 00, 00, 00, A2, CB, 00, 00...
 
[+]

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{f3daddfc-782d-4450-a020-ed3b44858e01}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.