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{55685567-4840-4a91-962b-49a412e9485a}w64.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}w64.sys by webget has been detected as adware by 23 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{55685567-4840-4a91-962b-49a412e9485a}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 webget)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
4d15d4dfd589512281884bee22a33907

SHA-1:
dad21afb9253922663a9f8984bb50bda26c612ff

SHA-256:
96109c1ef1f1eded7570b7837d905a2c8dc7b5e3a14b380f68c3751a6a647a4b

Scanner detections:
23 / 68

Status:
Adware

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

Analysis date:
4/26/2024 1:35:44 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.L
826

Agnitum Outpost
Trojan.BPlug
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.26

avast!
Win32:BrowseFox-F [PUP]
2014.9-141101

AVG
Webet
2015.0.3304

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14111

Bitdefender
Adware.SwiftBrowse.L
1.0.20.1525

Clam AntiVirus
Win.Adware.Swiftbrowse-284
0.98/21411

Dr.Web
Trojan.BPlug.123
9.0.1.0305

Emsisoft Anti-Malware
Adware.SwiftBrowse.L
8.14.11.01.01

ESET NOD32
Win64/Riskware.NetFilter (variant)
8.10465

Fortinet FortiGate
Riskware/NetFilter
11/1/2014

F-Prot
W64/A-abca7297
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.L
11.2014-01-11_7

G Data
Adware.SwiftBrowse
14.11.24

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.6.1.0

McAfee
Artemis!D2890F009BF4
5600.6960

MicroWorld eScan
Adware.SwiftBrowse.L
15.0.0.915

nProtect
Adware.SwiftBrowse.L
14.07.09.03

Reason Heuristics
PUP.webget.m
14.11.1.1

Sophos
BrowseSmart
4.98

Trend Micro House Call
Suspicious_GEN.F47V0701
7.2.305

VIPRE Antivirus
Trojan.Win32.Generic
31126

File size:
59.7 KB (61,112 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{55685567-4840-4a91-962b-49a412e9485a}w64.sys

Digital Signature
Signed by:
webget

Authority:
VeriSign, Inc.

Valid from:
4/22/2014 4:00:00 AM

Valid to:
4/23/2015 3:59:59 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:
1/31/2014 4:45:30 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:hot2dxF9O8ZF33iqiIy938bWp9XcfBvJkowidIfIdyYb:h9JRicy938ip9ea1jg1

Entry address:
0xF064

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, 2E, 20, FF, FF, CC, CC, 38, F2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, F6, 00, 00, 60, C1, 00, 00, 28, F1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, F9, 00, 00, 50, C0, 00, 00, D8, F0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, FA, 00, 00, 00, C0, 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, 9A, FA, 00, 00, 00, 00, 00, 00, 86, FA, 00, 00...
 
[+]

Entropy:
5.9638

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{55685567-4840-4a91-962b-49a412e9485a}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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