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{910baceb-efc0-4fe2-bc67-ee485894a7c4}w.sys

Lemurleap

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {910baceb-efc0-4fe2-bc67-ee485894a7c4}w.sys by Lemurleap 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 kernel mode device driver named “{910baceb-efc0-4fe2-bc67-ee485894a7c4}w”.
Publisher:
StdLib  (signed by Lemurleap)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
9cfdea730331b382cbfd0ece262a1c3d

SHA-1:
c6c7bd81386ca8154214ae75b1b0d547af8d9436

SHA-256:
07dea8bacae4bc7e8a0af2641943e6ef3b81da224b548643fe69422205b61074

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:
4/24/2024 7:25:15 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.9.22

File size:
41.8 KB (42,776 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{910baceb-efc0-4fe2-bc67-ee485894a7c4}w.sys

Digital Signature
Signed by:
Lemurleap

Authority:
COMODO CA Limited

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

Valid to:
5/8/2015 6:59:59 AM

Subject:
CN=Lemurleap, O=Lemurleap, 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:
015F3E368C995EC152965B1AABC50D9E

File PE Metadata
Compilation timestamp:
1/22/2015 8:26:29 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0xA03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 70, FF, FF, CC, CC, 94, A1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, CE, A4, 00, 00, E0, 80, 00, 00, B4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 24, A5, 00, 00, 00, 80, 00, 00, EC, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A4, A9, 00, 00, 38, 80, 00, 00, C4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9C, AA, 00, 00, 10, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, FC, A4, 00, 00, 10, A5, 00, 00, E8, A4...
 
[+]

Entropy:
6.6027

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{910baceb-efc0-4fe2-bc67-ee485894a7c4}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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