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{6ecf4198-6fc7-45fa-a04d-9a385e23d8d9}w.sys

LinkiDoo

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {6ecf4198-6fc7-45fa-a04d-9a385e23d8d9}w.sys by LinkiDoo 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 “{6ecf4198-6fc7-45fa-a04d-9a385e23d8d9}w”.
Publisher:
StdLib  (signed by LinkiDoo)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
3e26f83fd0bad1d9c21b8f054d65e753

SHA-1:
0866a9f6fb4ebd869710460d11c1bdc630deb2b8

SHA-256:
767cd06bba94eb60c169c86b3b39ffd16001df46b6dad9fcbfdab3fd0f0e07db

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:
11/23/2024 6:48:17 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.14.12

File size:
42.1 KB (43,152 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\{6ecf4198-6fc7-45fa-a04d-9a385e23d8d9}w.sys

Digital Signature
Signed by:
LinkiDoo

Authority:
VeriSign, Inc.

Valid from:
11/4/2014 10:00:00 PM

Valid to:
12/5/2015 9:59:59 PM

Subject:
CN=LinkiDoo, O=LinkiDoo, 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:
3EDD1381EA3A264E875F2CD9FAE7AFDD

File PE Metadata
Compilation timestamp:
12/2/2014 12:27:53 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...
 
[+]

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{6ecf4198-6fc7-45fa-a04d-9a385e23d8d9}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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