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{d554bd4b-dfc0-4d95-9f0f-a6e6ad0cfa25}w.sys

AtuZi

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {d554bd4b-dfc0-4d95-9f0f-a6e6ad0cfa25}w.sys by AtuZi has been detected as adware by 32 anti-malware scanners. It runs as a Windows kernel mode device driver named “{d554bd4b-dfc0-4d95-9f0f-a6e6ad0cfa25}w”. 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 AtuZi)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
38b96a44756f0a60ab0cbceed37ae97e

SHA-1:
75af034e0494310814dfea79d5b67da4e88dbbd5

SHA-256:
9d2e02aa6ef55da6ac0823238e7376a1989480ca14186084e77e20517b152e44

Scanner detections:
32 / 68

Status:
Adware

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

Analysis date:
4/24/2024 9:32:25 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.AZ
355

Agnitum Outpost
PUA.BrowseFox
7.1.1

AhnLab V3 Security
Win-PUP/BrowseFox.Gen
2015.02.02

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.206.92

avast!
Win32:BrowseFox-GF [PUP]
2014.9-160215

AVG
Generic
2017.0.2833

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16215

Bitdefender
Adware.SwiftBrowse.AZ
1.0.20.230

Bkav FE
W32.HfsAdware
1.3.0.6379

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

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
20922

Emsisoft Anti-Malware
Adware.SwiftBrowse.AZ
8.16.02.15.02

ESET NOD32
Win64/BrowseFox.AH potentially unwanted (variant)
10.11106

Fortinet FortiGate
Adware/Yotoon
2/15/2016

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

F-Secure
Adware.SwiftBrowse.AZ
11.2016-15-02_2

G Data
Adware.SwiftBrowse.AZ
16.2.25

K7 AntiVirus
Unwanted-Program
13.193.14824

Kaspersky
not-a-virus:AdWare.Win32.Yotoon
14.0.0.659

McAfee
Artemis!DA880F8820C2
5600.6489

MicroWorld eScan
Adware.SwiftBrowse.AZ
17.0.0.138

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.30.0.65070

Norman
Adware.SwiftBrowse.AZ
11.20160215

nProtect
Adware.SwiftBrowse.AZ
15.01.30.01

Qihoo 360 Security
Win32/Virus.Adware.618
1.0.0.1015

Reason Heuristics
PUP.Yontoo.AtuZi (M)
16.2.15.2

Sophos
Browse Fox
4.98

Trend Micro House Call
TROJ_GEN.F0C2C00AC15
7.2.46

Trend Micro
TROJ_GEN.F0C2C00AC15
10.465.15

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
37160

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.2050

File size:
42.2 KB (43,192 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\{d554bd4b-dfc0-4d95-9f0f-a6e6ad0cfa25}w.sys

Digital Signature
Signed by:
AtuZi

Authority:
VeriSign, Inc.

Valid from:
4/17/2014 7:00:00 AM

Valid to:
4/18/2015 6:59:59 AM

Subject:
CN=AtuZi, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=AtuZi, 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:
1095EBEC0EFD96E9E4C801DCA0909C26

File PE Metadata
Compilation timestamp:
12/5/2014 4:52:28 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:CN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddeTN:WhUcpH/0+LCf7EziDHhdO

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:
6.6152

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{d554bd4b-dfc0-4d95-9f0f-a6e6ad0cfa25}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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