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{b20d1921-9bc2-4560-913a-b040b4111d1f}gw64.sys

Adanak

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {b20d1921-9bc2-4560-913a-b040b4111d1f}gw64.sys by Adanak has been detected as adware by 15 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{b20d1921-9bc2-4560-913a-b040b4111d1f}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 Adanak)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
175b4b8a4a4a49c4da3667aae2e758f0

SHA-1:
a90aaa640885381be4cd6d9ebc5aa8f3b47798b6

SHA-256:
430eeee71eff9cc2974294bb69632e11d20750c93485d1753f33c4e4fc083500

Scanner detections:
15 / 68

Status:
Adware

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

Analysis date:
4/25/2024 9:21:58 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
827

Agnitum Outpost
Riskware.Agent
7.1.1

AVG
Generic
2015.0.3305

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.1515

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/21411

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
8.14.10.30.06

ESET NOD32
Win64/BrowseFox.AB (variant)
8.10645

F-Prot
W64/A-bd57be8c
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.CH
11.2014-30-10_5

G Data
Adware.SwiftBrowse.CH
14.10.24

MicroWorld eScan
Adware.SwiftBrowse.CH
15.0.0.909

nProtect
Adware.SwiftBrowse.CH
14.10.30.01

Reason Heuristics
PUP.Adanak.n
14.10.29.15

VIPRE Antivirus
Trojan.Win32.Generic
34372

File size:
47.7 KB (48,824 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Common path:
C:\Windows\System32\drivers\{b20d1921-9bc2-4560-913a-b040b4111d1f}gw64.sys

Digital Signature
Signed by:
Adanak

Authority:
VeriSign, Inc.

Valid from:
4/22/2014 3:00:00 AM

Valid to:
4/23/2015 2:59:59 AM

Subject:
CN=Adanak, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Adanak, 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:
54EAA4FDDD0AEB1183ED278A995C36F7

File PE Metadata
Compilation timestamp:
9/22/2014 10:01:54 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lp7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3/d5r:TFID6EGnLA8AFJTNEVmD/Dr

Entry address:
0xC064

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, E2, 50, FF, FF, CC, CC, 78, C2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 54, C6, 00, 00, A0, 91, 00, 00, 28, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, DA, CA, 00, 00, 50, 90, 00, 00, D8, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D2, CB, 00, 00, 00, 90, 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, B6, CB, 00, 00, 00, 00, 00, 00, A2, CB, 00, 00...
 
[+]

Entropy:
6.3927

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{b20d1921-9bc2-4560-913a-b040b4111d1f}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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