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{c5e48979-bd7f-4cf7-9b73-2482a67a4f37}gw64.sys

ClearThink

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {c5e48979-bd7f-4cf7-9b73-2482a67a4f37}gw64.sys by ClearThink has been detected as adware by 10 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{c5e48979-bd7f-4cf7-9b73-2482a67a4f37}Gw64”.
Publisher:
StdLib  (signed by ClearThink)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
4a1d8b24145149e5d3f31cc81b19a3a7

SHA-1:
ce06778ec8ef670244f072c209c1a7088535b06b

SHA-256:
ca351033665c3ea23c5134cee8379916d9ad47077b0b8f10b07b51d9c34584f3

Scanner detections:
10 / 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:
4/23/2024 6:09:42 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Trojan.BPlug
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.08.26

AVG
Generic
2015.0.3361

Dr.Web
Trojan.BPlug.123
9.0.1.05190

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.7.5.0

McAfee
Artemis!BB1445DF1E66
5600.7017

Reason Heuristics
PUP.ClearThink.n
14.9.4.15

Trend Micro House Call
Suspicious_GEN.F47V0816
7.2.247

VIPRE Antivirus
Adware.SwiftBrowse
32460

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1899

File size:
59.6 KB (61,072 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\{c5e48979-bd7f-4cf7-9b73-2482a67a4f37}gw64.sys

Digital Signature
Signed by:
ClearThink

Authority:
VeriSign, Inc.

Valid from:
8/5/2014 2:00:00 AM

Valid to:
8/6/2015 1:59:59 AM

Subject:
CN=ClearThink, O=ClearThink, 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:
1200063ED04B1DA36F7FE204B3DD8617

File PE Metadata
Compilation timestamp:
8/7/2014 1:52:18 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:not2dxF9O8ZF33iqiIy9387Hp9XcfBzSowidIee:n9JRicy938Lp9eW1j7

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...
 
[+]

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{c5e48979-bd7f-4cf7-9b73-2482a67a4f37}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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