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{87135683-4343-4a1a-a4aa-8b424769f1b8}w64.sys

outobox

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {87135683-4343-4a1a-a4aa-8b424769f1b8}w64.sys by outobox has been detected as adware by 22 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{87135683-4343-4a1a-a4aa-8b424769f1b8}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 outobox)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
0af86eb856042d02054337278e1c1525

SHA-1:
b43174fc7e0d3726c0dc1014ba11f1563e8aa967

SHA-256:
110ca9ed1362273f4aae2d7e5159869b13a1aec2df13eb865318e17a3358d5c4

Scanner detections:
22 / 68

Status:
Adware

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

Analysis date:
4/25/2024 9:14:49 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
6505302

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
Win-PUP/BrowseFox.Gen
2015.02.01

avast!
Win64:BrowseFox-C [PUP]
150129-1

AVG
Generic
2016.0.3212

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.160

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/20012

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
9.0.0.4799

ESET NOD32
Win64/BrowseFox.BT potentially unwanted application
7.0.302.0

F-Prot
W64/A-59c9c70a
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.CH
5.13.68

G Data
Adware.SwiftBrowse.CH
15.2.25

K7 AntiVirus
Adware
13.193.14824

MicroWorld eScan
Adware.SwiftBrowse.CH
16.0.0.96

Norman
Adware.SwiftBrowse.CH
03.12.2014 13:20:04

nProtect
Adware.SwiftBrowse.CH
15.01.30.01

Reason Heuristics
PUP.Yontoo
15.2.1.3

Trend Micro House Call
HS_BROWSEFOX.SM
7.2.32

Trend Micro
HS_BROWSEFOX.SM
10.465.01

VIPRE Antivirus
Threat.4150696
36694

Zillya! Antivirus
Adware.Yotoon.Win64.14
2.0.0.2050

File size:
47.6 KB (48,776 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\{87135683-4343-4a1a-a4aa-8b424769f1b8}w64.sys

Digital Signature
Signed by:
outobox

Authority:
VeriSign, Inc.

Valid from:
9/30/2014 3:00:00 AM

Valid to:
10/31/2015 1:59:59 AM

Subject:
CN=outobox, O=outobox, 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:
3308B48A98D635F50AF4E52B1D5E6168

File PE Metadata
Compilation timestamp:
12/6/2014 1:24:57 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lK7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3Q7eWYP:QFID6EGnLA8AFJTNEVmDEeWYP

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:
6.3941

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{87135683-4343-4a1a-a4aa-8b424769f1b8}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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