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{c5e48979-bd7f-4cf7-9b73-2482a67a4f37}gw64.sys

ClearThink

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {c5e48979-bd7f-4cf7-9b73-2482a67a4f37}gw64.sys by ClearThink has been detected as adware by 28 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{c5e48979-bd7f-4cf7-9b73-2482a67a4f37}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 ClearThink)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
01916b9dd818595d265599b737cb609c

SHA-1:
2fb69bd5b63b2d1b5efcc25ea60cc3440da487bf

SHA-256:
c13b3b850274a3aca4936ce3416cc28f64fed45d2917dfed0f0d8dbd87a0fa81

Scanner detections:
28 / 68

Status:
Adware

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

Analysis date:
4/26/2024 8:50:06 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.L
868

Agnitum Outpost
Riskware.NetFilter
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.18

avast!
Win64:Malware-gen
2014.9-141130

AVG
Generic
2015.0.3346

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14919

Bitdefender
Adware.SwiftBrowse.L
1.0.20.1310

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

Comodo Security
UnclassifiedMalware
18740

Dr.Web
Tool.NetFilter.1
9.0.1.0262

Emsisoft Anti-Malware
Adware.SwiftBrowse.L
8.14.09.19.07

ESET NOD32
Win64/Riskware.NetFilter (variant)
8.10434

F-Prot
W64/A-e967bae2
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.L
11.2014-19-09_6

G Data
Adware.SwiftBrowse
14.9.24

herdProtect (fuzzy)
variant of {c5e48979-bd7f-4cf7-9b73-2482a67a4f37}w64.sys (Adware)
2014.11.30.7

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.6.1.0

Malwarebytes
PUP.Optional.NetFilter
v2014.11.30.02

McAfee
Artemis!5D523940819C
5600.7002

MicroWorld eScan
Adware.SwiftBrowse.L
15.0.0.786

nProtect
Adware.SwiftBrowse.L
14.05.23.01

Panda Antivirus
Adware/BrowserFox
14.11.30.02

Qihoo 360 Security
Win32/Trojan.RiskWare.a25
1.0.0.1015

Reason Heuristics
PUP.ClearThink.n
14.9.19.19

Sophos
Browse Fox
4.98

Trend Micro House Call
TROJ_GEN.F47V0523
7.2.262

VIPRE Antivirus
Yontoo
33214

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1899

File size:
43.6 KB (44,688 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\{c5e48979-bd7f-4cf7-9b73-2482a67a4f37}gw64.sys

Digital Signature
Signed by:
ClearThink

Authority:
VeriSign, Inc.

Valid from:
8/5/2014 4:00:00 AM

Valid to:
8/6/2015 3:59:59 AM

Subject:
CN=ClearThink, O=ClearThink, 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:
1200063ED04B1DA36F7FE204B3DD8617

File PE Metadata
Compilation timestamp:
9/13/2014 3:33:02 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:QgLmaZF8aSQ7DwZmEhzg8ClFHeDrTdRfsQCa5075YLwidHoB:75ZEQI8E7ClquaC759Ee

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...
 
[+]

Code size:
30.5 KB (31,232 bytes)

Driver
Display name:
{c5e48979-bd7f-4cf7-9b73-2482a67a4f37}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.