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{29b136c9-938d-4d3d-8df8-d649d9b74d02}w64.sys

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Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {29b136c9-938d-4d3d-8df8-d649d9b74d02}w64.sys by Megabrowse has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a Windows 64-bit kernel mode device driver named “{29b136c9-938d-4d3d-8df8-d649d9b74d02}w64”.
Publisher:
StdLib  (signed by Megabrowse)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
21bdddcb91d5b795aed34af8a23f2697

SHA-1:
cf86ec32bfd8ed27ef261e369710b837e79b1194

SHA-256:
d3312d29ba1c6c120e3db6e19421430f43d89451a6020553ab7aefec7c9eaa37

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
5/9/2024 6:41:49 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.11.9

File size:
47.3 KB (48,416 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\{29b136c9-938d-4d3d-8df8-d649d9b74d02}w64.sys

Digital Signature
Signed by:
Megabrowse

Authority:
COMODO CA Limited

Valid from:
5/7/2014 2:00:00 AM

Valid to:
5/8/2015 1:59:59 AM

Subject:
CN=Megabrowse, O=Megabrowse, STREET=10620 Treena Street Suite 230, L=San Diego, S=Ca, PostalCode=92131, C=US

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
0CD194221ED016F035BD7BACA4027DC3

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

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

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...
 
[+]

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{29b136c9-938d-4d3d-8df8-d649d9b74d02}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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