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{4df60d2c-927b-478c-83f0-b7dc923bae60}w64.sys

Yula

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {4df60d2c-927b-478c-83f0-b7dc923bae60}w64.sys by Yula has been detected as adware by 23 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{4df60d2c-927b-478c-83f0-b7dc923bae60}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 Yula)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
9e479117e56b0e546bd2fe1be6092db0

SHA-1:
ffb46fe2798b830af0aa7985fab9190db2f9c7cf

SHA-256:
d18b1a4c18c3d9638f14e93b9dc94d15a93c380e43d806ac5e8c73d25bb27331

Scanner detections:
23 / 68

Status:
Adware

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

Analysis date:
4/18/2024 9:35:59 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.NetFilter.C
835

Agnitum Outpost
Trojan.BPlug
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.12

AVG
Zula
2015.0.3313

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141022

Bitdefender
Adware.NetFilter.C
1.0.20.1475

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/21411

Dr.Web
Trojan.BPlug.123
9.0.1.0295

Emsisoft Anti-Malware
Adware.NetFilter
8.14.10.22.05

ESET NOD32
Win64/Riskware.NetFilter (variant)
8.10460

F-Prot
W64/A-c19f7f83
v6.4.7.1.166

F-Secure
Adware.NetFilter.C
11.2014-22-10_4

G Data
Adware.NetFilter
14.10.24

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.7.5.0

McAfee
Artemis!A916E3D93870
5600.6969

MicroWorld eScan
Adware.NetFilter.C
15.0.0.885

nProtect
Adware.NetFilter.C
14.08.14.01

Panda Antivirus
Trj/CI.A
14.10.22.05

Reason Heuristics
PUP.Yula.m
14.10.22.17

Rising Antivirus
PE:Trojan.Win32.Generic.17205289!387994249
23.00.65.141020

Sophos
BrowseSmart
4.98

VIPRE Antivirus
Adware.SwiftBrowse
32228

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1900

File size:
60.2 KB (61,616 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\{4df60d2c-927b-478c-83f0-b7dc923bae60}w64.sys

Digital Signature
Signed by:
Yula

Authority:
VeriSign, Inc.

Valid from:
3/14/2014 8:00:00 PM

Valid to:
3/15/2015 7:59:59 PM

Subject:
CN=Yula, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Yula, 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:
4B2C13D47B877663487D003C021E7110

File PE Metadata
Compilation timestamp:
7/30/2014 3:31:58 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:Zot2dxF9O8ZF33iqiIy938bWp9XcfBfyQ7owidI9ehs:Z9JRicy938ip9efV1jMhs

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:
5.9345

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{4df60d2c-927b-478c-83f0-b7dc923bae60}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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