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{ba5bdfa6-01ff-443c-b8f1-b66ac8b14b6c}gw.sys

Four Finders

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {ba5bdfa6-01ff-443c-b8f1-b66ac8b14b6c}gw.sys by Four Finders has been detected as adware by 22 anti-malware scanners. It runs as a Windows kernel mode device driver named “{ba5bdfa6-01ff-443c-b8f1-b66ac8b14b6c}Gw”. 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 Four Finders)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
3535969f510bca1df0be3f85a1040eea

SHA-1:
b8bb7a346a1f10d5fdc388a4d74362e8a3abf33c

SHA-256:
f491f6f32aa460e92ce9520af56b5c856f01db8aa35d7101b8e03d0311b82a05

Scanner detections:
22 / 68

Status:
Adware

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

Analysis date:
4/19/2024 8:34:03 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.V
701

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.197.174

AVG
Generic
2016.0.3179

Bitdefender
Adware.BrowseFox.V
1.0.20.325

Clam AntiVirus
Win.Adware.Netfilter-134
0.98/21511

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
20461

Dr.Web
Tool.NetFilter.313
9.0.1.065

Emsisoft Anti-Malware
Adware.BrowseFox.V
8.15.03.06.02

F-Prot
W32/A-76f53fd6
v6.4.7.1.166

F-Secure
Adware.BrowseFox.V
11.2015-06-03_6

G Data
Adware.BrowseFox
15.3.24

herdProtect (fuzzy)
variant of {be5bf058-a067-4076-8c2e-22b9345a0260}gw.sys (Adware)
2015.6.12.17

McAfee
Artemis!3535969F510B
5600.6835

MicroWorld eScan
Adware.BrowseFox.V
16.0.0.195

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.30.0.64448

nProtect
Adware.BrowseFox.V
14.12.24.01

Qihoo 360 Security
Win32/Virus.Adware.618
1.0.0.1015

Reason Heuristics
PUP.Yontoo
15.3.6.2

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
36042

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.2015

File size:
42.2 KB (43,200 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{ba5bdfa6-01ff-443c-b8f1-b66ac8b14b6c}gw.sys

Digital Signature
Signed by:
Four Finders

Authority:
VeriSign, Inc.

Valid from:
1/22/2014 4:00:00 PM

Valid to:
1/23/2015 3:59:59 PM

Subject:
CN=Four Finders, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Four Finders, 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:
62BA09F2D5B6ECD8EB73CC14CFE0D9B9

File PE Metadata
Compilation timestamp:
9/22/2014 12:01:51 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:rN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddjkr:RhUcpH/0+LCf7EziDHhdWr

Entry address:
0xA03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 70, FF, FF, CC, CC, 94, A1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, CE, A4, 00, 00, E0, 80, 00, 00, B4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 24, A5, 00, 00, 00, 80, 00, 00, EC, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A4, A9, 00, 00, 38, 80, 00, 00, C4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9C, AA, 00, 00, 10, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, FC, A4, 00, 00, 10, A5, 00, 00, E8, A4...
 
[+]

Entropy:
6.6144

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{ba5bdfa6-01ff-443c-b8f1-b66ac8b14b6c}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


Remove {ba5bdfa6-01ff-443c-b8f1-b66ac8b14b6c}gw.sys - Powered by Reason Core Security
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