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{9a9157bb-003e-4fef-8bd1-c09bc4586a28}gw64.sys

ToggleMark

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {9a9157bb-003e-4fef-8bd1-c09bc4586a28}gw64.sys by ToggleMark has been detected as adware by 11 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{9a9157bb-003e-4fef-8bd1-c09bc4586a28}Gw64”. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
StdLib  (signed by ToggleMark)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
5f47ed1cb76e49f522f9e63d913ce72b

SHA-1:
b9578db9b7b5205146963d382bd3ae129caf0744

SHA-256:
61729f9ebeb4a7143c9c81d178434ad1e5b1f63493da4a1a6ae6015bc62bac85

Scanner detections:
11 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/24/2024 3:29:08 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Yotoon
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.01

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1492

Dr.Web
Trojan.BPlug.123
9.0.1.0245

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.7.5.0

McAfee
Artemis!A310120AAB08
5600.7019

Reason Heuristics
PUP.ToggleMark.n
14.9.2.17

Sophos
BrowseSmart
4.98

Trend Micro House Call
Suspicious_GEN.F47V0807
7.2.245

VIPRE Antivirus
Trojan.Win32.Generic
32712

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1907

File size:
59.7 KB (61,120 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{9a9157bb-003e-4fef-8bd1-c09bc4586a28}gw64.sys

Digital Signature
Signed by:
ToggleMark

Authority:
VeriSign, Inc.

Valid from:
2/3/2014 6:00:00 PM

Valid to:
2/4/2015 5:59:59 PM

Subject:
CN=ToggleMark, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=ToggleMark, 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:
1E789CAD165E259708D9809CE2D90278

File PE Metadata
Compilation timestamp:
8/6/2014 6:52:18 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:Pot2dxF9O8ZF33iqiIy9387Hp9XcfBzSowidIvuH/l:P9JRicy938Lp9eW1jvKt

Entry address:
0xF064

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, 2E, 20, FF, FF, CC, CC, 38, F2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, F6, 00, 00, 60, C1, 00, 00, 28, F1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, F9, 00, 00, 50, C0, 00, 00, D8, F0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, FA, 00, 00, 00, C0, 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, 9A, FA, 00, 00, 00, 00, 00, 00, 86, FA, 00, 00...
 
[+]

Entropy:
5.9515

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{9a9157bb-003e-4fef-8bd1-c09bc4586a28}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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