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{1a147621-8c9a-4d6b-a557-6513a40d3207}w.sys

outobox

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {1a147621-8c9a-4d6b-a557-6513a40d3207}w.sys by outobox has been detected as adware by 28 anti-malware scanners. It runs as a Windows kernel mode device driver named “{1a147621-8c9a-4d6b-a557-6513a40d3207}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 outobox)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
67d986548b7b64ae01f569ab97778ae7

SHA-1:
f2ba6d9b98c4c72082a129a8ea8e5ccdd83846fe

SHA-256:
9f9b50b66fea056294f28e8efa4eb77152a5d53e18aed538fcd2e6049a4ffcd8

Scanner detections:
28 / 68

Status:
Adware

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

Analysis date:
4/27/2024 4:13:01 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.BA
360

Agnitum Outpost
RiskWare.NetFilter
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2014.09.24

Avira AntiVirus
Adware/BrowseFox.A.168
7.11.173.236

avast!
Win32:BrowseFox-FN [PUP]
2014.9-160209

AVG
Outobox
2017.0.2838

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1629

Bitdefender
Adware.SwiftBrowse.BA
1.0.20.200

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Netfilter-134
0.98/20557

Comodo Security
Application.Win32.RiskWare.NetFilter.D
19595

Dr.Web
Trojan.Yontoo.1808
9.0.1.040

Emsisoft Anti-Malware
Adware.SwiftBrowse.BA
8.16.02.09.03

ESET NOD32
Win64/BrowseFox.BT (variant)
10.10647

F-Prot
W32/A-dd00b781
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.BA
11.2016-09-02_3

G Data
Adware.SwiftBrowse.BA
16.2.24

K7 AntiVirus
Unwanted-Program
13.204.16185

MicroWorld eScan
Adware.SwiftBrowse.BA
17.0.0.120

NANO AntiVirus
Riskware.Win32.Yotoon.dfewso
0.28.2.62286

Norman
Adware.SwiftBrowse.BA
11.20160209

nProtect
Adware.SwiftBrowse.BA
14.09.23.01

Qihoo 360 Security
Win32/Virus.Adware.618
1.0.0.1015

Reason Heuristics
PUP.Yontoo.outobox (M)
16.2.9.15

Sophos
PUA 'OutoBox' (of type Adware)
5.15

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Yontoo
33362

Zillya! Antivirus
Adware.Yotoon.Win64.1
2.0.0.1973

File size:
51.7 KB (52,920 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{1a147621-8c9a-4d6b-a557-6513a40d3207}w.sys

Digital Signature
Signed by:
outobox

Authority:
VeriSign, Inc.

Valid from:
10/7/2013 8:00:00 AM

Valid to:
10/8/2014 7:59:59 AM

Subject:
CN=outobox, OU=Digital ID Class 3 - Microsoft Software Validation v2, 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:
603472DEF1C8B65B2E93E06C16768DB7

File PE Metadata
Compilation timestamp:
1/31/2014 8:45:28 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:0IsHpnKHCBSqUPJHKQpkJxpKwT2bcWiJmOtX3g2rp3lnP4mL:TsHRKHLJqQpkYwTsiTtXxtAmL

Entry address:
0xC03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 62, 50, FF, FF, CC, CC, 74, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BC, C4, 00, 00, C0, A0, 00, 00, B4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 12, C5, 00, 00, 00, A0, 00, 00, EC, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, AE, C8, 00, 00, 38, A0, 00, 00, C4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, C9, 00, 00, 10, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, EA, C4, 00, 00, FE, C4, 00, 00, D6, C4...
 
[+]

Entropy:
6.3571

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{1a147621-8c9a-4d6b-a557-6513a40d3207}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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