home

{b97ce8fa-0be1-4b73-8ac6-5353529f8179}w64.sys

GreyGray

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {b97ce8fa-0be1-4b73-8ac6-5353529f8179}w64.sys by GreyGray has been detected as adware by 25 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{b97ce8fa-0be1-4b73-8ac6-5353529f8179}w64”. 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 GreyGray)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
c76bb026ed2c42a53e89c9a0e7d9f976

SHA-1:
13f2bfb537b7b88b653dbcdb955b69bd14cdc6c0

SHA-256:
e79b7fb7b2353080299f659c97dc90f7fcd3e544c086dfaffbf39befdc84852f

Scanner detections:
25 / 68

Status:
Adware

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

Analysis date:
4/18/2024 11:28:23 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
356

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
Win-PUP/BrowseFox.Gen
2015.05.28

avast!
Win32:BrowseFox-ED [PUP]
2014.9-160214

AVG
GreyGray
2017.0.2834

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.225

Bkav FE
W64.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/21511

Dr.Web
Trojan.Yontoo.1734
9.0.1.045

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
8.16.02.14.03

ESET NOD32
Win64/BrowseFox.CG (variant)
10.10960

Fortinet FortiGate
Adware/BrowseFox
2/14/2016

F-Prot
W64/A-59c9c70a
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.CH
11.2016-14-02_1

G Data
Adware.SwiftBrowse.CH
16.2.24

K7 AntiVirus
Adware
13.204.16053

McAfee
Artemis!3B469DE05A22
5600.6490

MicroWorld eScan
Adware.SwiftBrowse.CH
17.0.0.135

Norman
Adware.SwiftBrowse.CH
11.20160214

nProtect
Adware.SwiftBrowse.CH
15.01.02.01

Reason Heuristics
PUP.Yontoo.GreyGray (M)
16.2.14.3

Rising Antivirus
PE:Trojan.Win32.Generic.17E296ED!400725741
23.00.65.16212

SUPERAntiSpyware
Adware.BrowseFox/Variant
9325

VIPRE Antivirus
Trojan.Win32.Generic
36344

Zillya! Antivirus
Adware.Yotoon.Win64.14
2.0.0.2025

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)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{b97ce8fa-0be1-4b73-8ac6-5353529f8179}w64.sys

Digital Signature
Signed by:
GreyGray

Authority:
VeriSign, Inc.

Valid from:
9/19/2013 8:00:00 AM

Valid to:
9/20/2015 7:59:59 AM

Subject:
CN=GreyGray, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=GreyGray, 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:
23FF62A16C638B371A4AB98A8F876E8B

File PE Metadata
Compilation timestamp:
4/21/2015 8:05:37 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lE7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3ILM7:uFID6EGnLA8AFJTNEVmDyu

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...
 
[+]

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{b97ce8fa-0be1-4b73-8ac6-5353529f8179}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.