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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 19 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:
6a58372e58ad936c2aa132af80862e2f

SHA-1:
bbb0e69565e6e44955dd9e533aebbb5ebb70b41c

SHA-256:
a4c725c618966b254a4e3443698bb3051e8539ac57001c6ac6acf439317ebe66

Scanner detections:
19 / 68

Status:
Adware

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

Analysis date:
4/29/2024 10:38:31 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.L
856

AhnLab V3 Security
PUP/Win32.BrowseFox
2014.09.20

Avira AntiVirus
Adware/BrowseFox.A.168
7.11.173.118

avast!
Win32:BrowseFox-F [PUP]
2014.9-141001

AVG
Webet
2015.0.3334

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14101

Bitdefender
Adware.SwiftBrowse.L
1.0.20.1370

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

Dr.Web
Tool.NetFilter.1
9.0.1.0274

Emsisoft Anti-Malware
Adware.SwiftBrowse.L
8.14.10.01.04

F-Secure
Adware.SwiftBrowse.L
11.2014-01-10_4

G Data
Adware.SwiftBrowse
14.10.24

MicroWorld eScan
Adware.SwiftBrowse.L
15.0.0.822

NANO AntiVirus
Riskware.Win32.Yotoon.dfewso
0.28.2.62151

nProtect
Adware.SwiftBrowse.L
14.09.19.01

Qihoo 360 Security
Win32/Virus.Adware.c12
1.0.0.1015

Reason Heuristics
PUP.webget.k
14.10.1.16

Trend Micro House Call
Suspicious_GEN.F47V0616
7.2.274

VIPRE Antivirus
Yontoo
33266

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:
4/22/2014 1:00:00 AM

Valid to:
4/23/2015 12:59:59 AM

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:
9/13/2014 12:32:59 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:yf5OQ5p9MZq9Vkh5z8tZfJm/6D1GqA+5+TFpEwXqIdyT:yf5H5pH+x8t1c/+Gd+5/4Hy

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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