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{d2966cec-d2fa-42a9-9828-a4d3838d8dd2}gw.sys

Beta Rez

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {d2966cec-d2fa-42a9-9828-a4d3838d8dd2}gw.sys by Beta Rez 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 “{d2966cec-d2fa-42a9-9828-a4d3838d8dd2}Gw”.
Publisher:
StdLib  (signed by Beta Rez)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
18b932400b9c69b93b8280c67f96bc0c

SHA-1:
de81fb5ed538bd8d4e14714267daa28a645653f8

SHA-256:
01b9bcbdf65f9152a09c2652a5dede65ccd282c41dd4aa541f35d2cc9267aa63

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:
4/19/2024 11:25:28 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.BetaRez (M)
16.2.2.9

File size:
42.2 KB (43,192 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\{d2966cec-d2fa-42a9-9828-a4d3838d8dd2}gw.sys

Digital Signature
Signed by:
Beta Rez

Authority:
VeriSign, Inc.

Valid from:
3/19/2014 12:00:00 AM

Valid to:
3/19/2015 11:59:59 PM

Subject:
CN=Beta Rez, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Beta Rez, 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:
551AC20E6814AE1BD6F9CC331B9C1C38

File PE Metadata
Compilation timestamp:
12/3/2014 1:47:20 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:JN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddOW:LhUcpH/0+LCf7EziDHhd9

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:
{d2966cec-d2fa-42a9-9828-a4d3838d8dd2}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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