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{6aa64cb0-6d72-46d1-9577-2fb102a773ef}w64.sys

Webfuii

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {6aa64cb0-6d72-46d1-9577-2fb102a773ef}w64.sys by Webfuii has been detected as adware by 19 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{6aa64cb0-6d72-46d1-9577-2fb102a773ef}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 Webfuii)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
721fa44725547e94628319650ac58581

SHA-1:
ca425b1590a7540586ac3bf2274e73493ed0699d

SHA-256:
657bcfe15e03c1223527af4393a373a6b1241cd747f344b4c6dabb8af49d0505

Scanner detections:
19 / 68

Status:
Adware

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

Analysis date:
4/26/2024 6:04:24 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.NetFilter.E
366

Agnitum Outpost
Trojan.BPlug
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.11.03

AVG
Generic
2017.0.2844

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1624

Bitdefender
Adware.NetFilter.E
1.0.20.175

Clam AntiVirus
Win.Adware.Swiftbrowse-75
0.98/21411

Dr.Web
Trojan.BPlug.123
9.0.1.035

Emsisoft Anti-Malware
Adware.NetFilter
8.16.02.04.08

F-Prot
W64/A-e967bae2
v6.4.7.1.166

F-Secure
Adware.NetFilter.E
11.2016-04-02_5

G Data
Adware.NetFilter
16.2.24

McAfee
Artemis!C14E63CF3016
5600.6500

MicroWorld eScan
Adware.NetFilter.E
17.0.0.105

nProtect
Adware.NetFilter.E
14.10.31.01

Reason Heuristics
PUP.Yontoo.Webfuii (M)
16.2.4.8

Sophos
BrowseSmart
4.98

Trend Micro House Call
Suspicious_GEN.F47V1028
7.2.35

VIPRE Antivirus
Trojan.Win32.Generic
34460

File size:
47.7 KB (48,824 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{6aa64cb0-6d72-46d1-9577-2fb102a773ef}w64.sys

Digital Signature
Signed by:
Webfuii

Authority:
VeriSign, Inc.

Valid from:
10/7/2013 3:00:00 AM

Valid to:
10/8/2014 2:59:59 AM

Subject:
CN=Webfuii, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Webfuii, 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:
658C92DE4B1AFFD7A1D69F49D0D049BA

File PE Metadata
Compilation timestamp:
9/22/2014 10:01:54 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lK7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD36uf:IFID6EGnLA8AFJTNEVmD6W

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:
6.3921

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{6aa64cb0-6d72-46d1-9577-2fb102a773ef}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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