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{cf41bd35-0104-48ec-9529-7ae623266ebf}gw.sys

Moss Net

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {cf41bd35-0104-48ec-9529-7ae623266ebf}gw.sys by Moss Net 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 “{cf41bd35-0104-48ec-9529-7ae623266ebf}Gw”.
Publisher:
StdLib  (signed by Moss Net)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
2f06f79306a0e7703e2922fda13c8af8

SHA-1:
6e7ff4e45634d7b3e6596615e11ada56f3637ca3

SHA-256:
35571d86379c55f9d1c411cfac557229a36988cc0d763e8f5393f39f00cf5e05

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:
12/3/2024 6:00:07 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.2.11

File size:
42.1 KB (43,144 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\{cf41bd35-0104-48ec-9529-7ae623266ebf}gw.sys

Digital Signature
Signed by:
Moss Net

Authority:
VeriSign, Inc.

Valid from:
1/5/2015 5:30:00 AM

Valid to:
3/6/2016 5:29:59 AM

Subject:
CN=Moss Net, O=Moss Net, 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:
4F4D5062F39F6E78B3090DF5B1AD5A37

File PE Metadata
Compilation timestamp:
1/26/2016 11:50:46 AM

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:
6.6164

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{cf41bd35-0104-48ec-9529-7ae623266ebf}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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