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{60b4ca60-5c76-463e-8bce-058498c2450d}gw.sys

Clock Hand

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {60b4ca60-5c76-463e-8bce-058498c2450d}gw.sys by Clock Hand has been detected as adware by 25 anti-malware scanners. It runs as a Windows kernel mode device driver named “{60b4ca60-5c76-463e-8bce-058498c2450d}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 Clock Hand)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
3028c51398346670cca44e224095bdb6

SHA-1:
f1dae2cdd4a49d0626b6ae432abcb03bc72eb815

SHA-256:
80f26395920075fa058fed4b6ed561c9f0cab6952101a73a86b583c9bc96a734

Scanner detections:
25 / 68

Status:
Adware

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

Analysis date:
4/26/2024 1:51:53 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.V
583

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.212.40

AVG
Generic
2016.0.3061

Bitdefender
Adware.BrowseFox.V
1.0.20.915

Bkav FE
W32.HfsAdware
1.3.0.6379

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

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
21186

Dr.Web
Tool.NetFilter.313
9.0.1.0183

Emsisoft Anti-Malware
Adware.BrowseFox.V
8.15.07.02.12

F-Prot
W32/S-a7161e1c
v6.4.7.1.166

F-Secure
Adware.BrowseFox.V
11.2015-02-07_5

G Data
Adware.BrowseFox
15.7.25

K7 AntiVirus
Unwanted-Program
13.198.15057

McAfee
Artemis!3028C5139834
5600.6717

MicroWorld eScan
Adware.BrowseFox.V
16.0.0.549

nProtect
Adware.BrowseFox.V
15.02.23.01

Qihoo 360 Security
Win32/Virus.Adware.618
1.0.0.1015

Reason Heuristics
PUP.Yontoo.ClockHand (M)
15.7.2.0

Trend Micro House Call
TROJ_GEN.R00UC0OBF15
7.2.183

Trend Micro
TROJ_GEN.R00UC0OBF15
10.465.02

Vba32 AntiVirus
AdWare.Zaitu
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
37828

ViRobot
Adware.BrowseFox.43152.AD[h]
2014.3.20.0

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.2079

File size:
42.1 KB (43,152 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\{60b4ca60-5c76-463e-8bce-058498c2450d}gw.sys

Digital Signature
Signed by:
Clock Hand

Authority:
VeriSign, Inc.

Valid from:
1/10/2015 12:00:00 PM

Valid to:
1/11/2016 11:59:59 AM

Subject:
CN=Clock Hand, O=Clock Hand, 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:
456A42223C623741F26F18A9D4223E47

File PE Metadata
Compilation timestamp:
2/2/2015 2:53:59 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:ruN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddLERG:rShUcpH/0+LCf7EziDHhdyRG

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:
6.6141

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{60b4ca60-5c76-463e-8bce-058498c2450d}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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