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{3b232d24-d5de-4194-b4d7-d53b41a09748}w64.sys

lucky leap

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {3b232d24-d5de-4194-b4d7-d53b41a09748}w64.sys by lucky leap has been detected as adware by 27 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{3b232d24-d5de-4194-b4d7-d53b41a09748}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 lucky leap)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
0ffd16777ecbe4b15efee74741b7339d

SHA-1:
28ec0c2ba12a63638f5b4d1381170e5b77a7987e

SHA-256:
a7230568d81825054fc956f00c53b5dcd8956186426e7f8105dff1bb9d8d6577

Scanner detections:
27 / 68

Status:
Adware

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

Analysis date:
4/25/2024 1:51:56 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.NetFilter.E
804

Agnitum Outpost
Trojan.BPlug
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.10.01

avast!
Win64:Malware-gen
2014.9-141122

AVG
Generic
2015.0.3282

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141122

Bitdefender
Adware.NetFilter.E
1.0.20.1630

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

Comodo Security
UnclassifiedMalware
18740

Dr.Web
Trojan.BPlug.123
9.0.1.0326

Emsisoft Anti-Malware
Adware.NetFilter
8.14.11.22.09

ESET NOD32
Win64/Riskware.NetFilter (variant)
8.10434

F-Prot
W64/A-7883d091
v6.4.7.1.166

F-Secure
Adware.NetFilter.E
11.2014-22-11_7

G Data
Adware.NetFilter
14.11.24

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.6.1.0

Malwarebytes
PUP.Optional.NetFilter
v2014.11.22.09

McAfee
Artemis!5D523940819C
5600.6938

MicroWorld eScan
Adware.NetFilter.E
15.0.0.978

nProtect
Adware.NetFilter.E
14.09.30.01

Panda Antivirus
Adware/BrowserFox
14.11.22.09

Qihoo 360 Security
Win32/Trojan.RiskWare.a25
1.0.0.1015

Reason Heuristics
PUP.luckyleap.m
14.11.22.21

Sophos
BrowseSmart
4.98

Trend Micro House Call
TROJ_GEN.F47V0523
7.2.326

VIPRE Antivirus
Trojan.Win32.Generic
33558

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1939

File size:
59.7 KB (61,120 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Common path:
C:\Windows\System32\drivers\{3b232d24-d5de-4194-b4d7-d53b41a09748}w64.sys

Digital Signature
Signed by:
lucky leap

Authority:
VeriSign, Inc.

Valid from:
8/13/2013 8:00:00 AM

Valid to:
8/14/2015 7:59:59 AM

Subject:
CN=lucky leap, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=lucky leap, 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:
6A5011DFCDBB457548BCC92ED7587788

File PE Metadata
Compilation timestamp:
1/31/2014 8:45:30 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:Lot2dxF9O8ZF33iqiIy938bWp9XcfBvJkowidIbm:L9JRicy938ip9ea1jS

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:
5.9648

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{3b232d24-d5de-4194-b4d7-d53b41a09748}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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