{2d240827-de59-4be7-a8ab-4384ebd14073}w.sys

AtuZi

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {2d240827-de59-4be7-a8ab-4384ebd14073}w.sys by AtuZi has been detected as adware by 20 anti-malware scanners. It runs as a Windows kernel mode device driver named “{2d240827-de59-4be7-a8ab-4384ebd14073}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:
4183f5260afa419d3626b6c6e44cf256

SHA-1:
b8f95359d088bc2440109184b21f4e99ed75e8af

SHA-256:
b2c31a338406293d6395affb2af4a553692396f8ae33dc295c034e3dbda4c22b

Scanner detections:
20 / 68

Status:
Adware

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

Analysis date:
4/26/2024 10:32:41 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.AZ
827

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.182.130

AVG
Generic
2015.0.3305

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141031

Bitdefender
Adware.SwiftBrowse.AZ
1.0.20.1520

Clam AntiVirus
Win.Adware.Netfilter-134
0.98/21411

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.AZ
14.10.31

F-Prot
W32/A-248e95ab
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.AZ
11.2014-31-10_6

G Data
Adware.SwiftBrowse.AZ
14.10.24

MicroWorld eScan
Adware.SwiftBrowse.AZ
15.0.0.912

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.28.6.62995

nProtect
Adware.SwiftBrowse.AZ
14.10.30.01

Reason Heuristics
PUP.AtuZi.k
14.10.31.5

Sophos
Browse Fox
4.98

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Threat.4150696
34232

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.1973

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\{2d240827-de59-4be7-a8ab-4384ebd14073}w.sys

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
4/17/2014 2:00:00 AM

Valid to:
4/18/2015 1:59:59 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:
9/22/2014 9:01:51 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:GN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJdd/TNAJE:qhUcpH/0+LCf7EziDHhdH7

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:
6.6149

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{2d240827-de59-4be7-a8ab-4384ebd14073}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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