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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 29 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:
1.4.4.6 built by: WinDDK

MD5:
1e708b2f8bfdc33e14c6420f312a5e90

SHA-1:
dd84fc4f72e746331970b6b127254d63d89a1ffc

SHA-256:
9748e0baf54ada750dd883e46866f7df0c19002d44254c00c82ed3fedebcb653

Scanner detections:
29 / 68

Status:
Adware

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

Analysis date:
4/26/2024 8:21:56 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.NetFilter.C
357

Agnitum Outpost
Trojan.BPlug
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.12

avast!
Win32:BrowseFox-FF [PUP]
2014.9-160212

AVG
Adware AdPlugin
2017.0.2835

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16212

Bitdefender
Adware.NetFilter.C
1.0.20.215

Bkav FE
W64.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Swiftbrowse-284
0.98/20392

Dr.Web
Trojan.Yontoo.1734
9.0.1.043

Emsisoft Anti-Malware
Adware.NetFilter
8.16.02.12.10

ESET NOD32
Win64/Riskware.NetFilter (variant)
10.10460

F-Prot
W64/A-c19f7f83
v6.4.7.1.166

F-Secure
Adware.NetFilter.C
11.2016-12-02_6

G Data
Adware.NetFilter
16.2.24

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.6.1.0

K7 AntiVirus
Adware
13.203.15903

McAfee
Artemis!971255002B36
5600.6491

MicroWorld eScan
Adware.NetFilter.C
17.0.0.129

Norman
Adware.NetFilter.C
11.20160212

nProtect
Adware.NetFilter.C
14.08.08.01

Panda Antivirus
Trj/CI.A
16.02.12.10

Reason Heuristics
PUP.Yontoo.Yula (M)
16.2.12.22

Rising Antivirus
PE:Trojan.Win32.Generic.17205289!387994249
23.00.65.16210

Sophos
PUA 'Browse Fox'
5.14

SUPERAntiSpyware
Adware.BrowseFox/Variant
9327

Trend Micro House Call
Suspicious_GEN.F47V0803
7.2.43

VIPRE Antivirus
Adware.SwiftBrowse
32044

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1900

File size:
47.7 KB (48,816 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\{4df60d2c-927b-478c-83f0-b7dc923bae60}w64.sys

Digital Signature
Signed by:
Yula

Authority:
VeriSign, Inc.

Valid from:
3/14/2014 7:00:00 PM

Valid to:
3/15/2015 6:59:59 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:
9/22/2014 2:01:54 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:ly7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3bhehFp9:oFID6EGnLA8AFJTNEVmDbQhFj

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:
6.3924

Code size:
34.5 KB (35,328 bytes)

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

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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