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{033a6f56-e958-4ed8-a315-2fedc919d2dc}gw64.sys

HulaToo

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {033a6f56-e958-4ed8-a315-2fedc919d2dc}gw64.sys by HulaToo has been detected as adware by 21 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{033a6f56-e958-4ed8-a315-2fedc919d2dc}Gw64”. 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 HulaToo)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
eb20b648542c034c5c8b6b3b97a6036c

SHA-1:
0a1111ad6396c7a36799e1a2582365a1cade3250

SHA-256:
c9de96a79a7b3a5c65a8fea00c7179f33c3419a94ffb0409b788bfe562f03e55

Scanner detections:
21 / 68

Status:
Adware

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

Analysis date:
4/25/2024 3:07:33 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
6496598

Agnitum Outpost
Riskware.Agent
7.1.1

avast!
Win64:BrowseFox-C [PUP]
150101-1

AVG
Hulaoo
2016.0.3213

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.155

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/20008

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
9.0.0.4799

ESET NOD32
Win64/BrowseFox.X potentially unwanted application
7.0.302.0

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

F-Secure
Adware.SwiftBrowse.CH
5.13.68

G Data
Adware.SwiftBrowse.CH
15.1.25

K7 AntiVirus
Adware
13.193.14818

MicroWorld eScan
Adware.SwiftBrowse.CH
16.0.0.93

Norman
Adware.SwiftBrowse.CH
02.01.2015 13:58:24

nProtect
Adware.SwiftBrowse.CH
15.01.30.01

Reason Heuristics
PUP.Yontoo
15.1.31.6

SUPERAntiSpyware
Adware.BrowseFox/Variant
10082

Trend Micro House Call
HS_BROWSEFOX.SM
7.2.31

Trend Micro
HS_BROWSEFOX.SM
10.465.31

VIPRE Antivirus
Threat.4150696
36694

File size:
47.7 KB (48,824 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\{033a6f56-e958-4ed8-a315-2fedc919d2dc}gw64.sys

Digital Signature
Signed by:
HulaToo

Authority:
VeriSign, Inc.

Valid from:
3/19/2014 2:00:00 AM

Valid to:
3/20/2015 1:59:59 AM

Subject:
CN=HulaToo, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=HulaToo, 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:
089F9EDFF3BE5DAC5EE5E228073DBDC4

File PE Metadata
Compilation timestamp:
11/27/2014 10:04:06 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lu7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3j+cz:oFID6EGnLA8AFJTNEVmDzz

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...
 
[+]

Entropy:
6.3930

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{033a6f56-e958-4ed8-a315-2fedc919d2dc}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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