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{55685567-4840-4a91-962b-49a412e9485a}w.sys

webget

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {55685567-4840-4a91-962b-49a412e9485a}w.sys by webget has been detected as adware by 22 anti-malware scanners. It runs as a Windows kernel mode device driver named “{55685567-4840-4a91-962b-49a412e9485a}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 webget)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
7bc2dc16ec36180761b5cf7a9e0f4332

SHA-1:
6cd874f12c26750c35e7da5239cf3fde938eb8e8

SHA-256:
2f04d038b132d826404800b76400691fadef3de7c62d08973cae718d02bc85e4

Scanner detections:
22 / 68

Status:
Adware

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

Analysis date:
4/19/2024 11:32:29 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.L
356

Agnitum Outpost
PUA.Yotoon
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2014.09.20

Avira AntiVirus
Adware/BrowseFox.A.168
7.11.173.118

avast!
Win32:BrowseFox-F [PUP]
2014.9-160214

AVG
Webet
2017.0.2834

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16214

Bitdefender
Adware.SwiftBrowse.L
1.0.20.225

Comodo Security
Application.Win32.RiskWare.NetFilter.D
19557

Dr.Web
Trojan.BPlug.123
9.0.1.045

Emsisoft Anti-Malware
Adware.SwiftBrowse.L
8.16.02.14.11

F-Secure
Adware.SwiftBrowse.L
11.2016-14-02_1

G Data
Adware.SwiftBrowse
16.2.24

McAfee
Artemis!0BCEB7489C5A
5600.6490

MicroWorld eScan
Adware.SwiftBrowse.L
17.0.0.135

NANO AntiVirus
Riskware.Win32.Yotoon.ddghtt
0.28.2.61349

nProtect
Adware.SwiftBrowse.L
14.08.01.01

Qihoo 360 Security
Win32/Virus.Adware.c12
1.0.0.1015

Reason Heuristics
PUP.Yontoo.webget (M)
16.2.14.11

Trend Micro House Call
TROJ_GEN.F47V0523
7.2.45

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
31860

File size:
38.2 KB (39,096 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\{55685567-4840-4a91-962b-49a412e9485a}w.sys

Digital Signature
Signed by:
webget

Authority:
VeriSign, Inc.

Valid from:
4/21/2014 7:00:00 PM

Valid to:
4/22/2015 6:59:59 PM

Subject:
CN=webget, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=webget, 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:
2DDF0A91A7D2108F978BEB26D4734BBA

File PE Metadata
Compilation timestamp:
9/12/2014 6:32:59 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:hf5OQ5p9MZq9Vkh5z8tZfJm/6D1GqA+5+TFpEwXqIdyq:hf5H5pH+x8t1c/+Gd+5/4HP

Entry address:
0x903E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 80, FF, FF, CC, CC, 74, 91, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, AE, 94, 00, 00, C0, 70, 00, 00, B4, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, 95, 00, 00, 00, 70, 00, 00, EC, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A0, 98, 00, 00, 38, 70, 00, 00, C4, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 98, 99, 00, 00, 10, 70, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, DC, 94, 00, 00, F0, 94, 00, 00, C8, 94...
 
[+]

Code size:
24.5 KB (25,088 bytes)

Driver
Display name:
{55685567-4840-4a91-962b-49a412e9485a}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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