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{a89df9a8-0937-4686-a328-41c7bcd926b2}w64.sys

BooZaka

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {a89df9a8-0937-4686-a328-41c7bcd926b2}w64.sys by BooZaka has been detected as adware by 16 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{a89df9a8-0937-4686-a328-41c7bcd926b2}w64”. 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 BooZaka)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
314c9de9a70c176b91dbc959f530a18d

SHA-1:
5e5939261700cefe92e85f85200959f7a1c7eae1

SHA-256:
f6da576f198e2e87906f2841fcec20f6add918c940f0aa4ca718c367e2a90774

Scanner detections:
16 / 68

Status:
Adware

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

Analysis date:
4/28/2024 11:04:56 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
816

Agnitum Outpost
Riskware.Agent
7.1.1

avast!
Win32:BrowseFox-DB [PUP]
141025-0

AVG
Generic
2015.0.3294

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.1570

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/21411

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
8.14.11.10.01

ESET NOD32
Win64/BrowseFox.CG (variant)
8.10701

F-Secure
Adware.SwiftBrowse.CH
11.2014-10-11_2

G Data
Adware.SwiftBrowse.CH
14.11.24

MicroWorld eScan
Adware.SwiftBrowse.CH
15.0.0.942

nProtect
Adware.SwiftBrowse.CH
14.11.10.01

Reason Heuristics
PUP.BooZaka.m
14.11.10.13

VIPRE Antivirus
Threat.4150696
34232

Zillya! Antivirus
Adware.Yotoon.Win64.14
2.0.0.1980

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)

Common path:
C:\Windows\System32\drivers\{a89df9a8-0937-4686-a328-41c7bcd926b2}w64.sys

Digital Signature
Signed by:
BooZaka

Authority:
VeriSign, Inc.

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

Valid to:
3/20/2015 2:59:59 AM

Subject:
CN=BooZaka, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=BooZaka, 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:
798D14F2EA94D165A332BEEBA73F4EE8

File PE Metadata
Compilation timestamp:
11/10/2014 3:27:36 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lo7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3HseSe:6FID6EGnLA8AFJTNEVmDxSe

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:
6.3919

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{a89df9a8-0937-4686-a328-41c7bcd926b2}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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