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{44a99463-0ff3-4b62-9d3c-802722bf3043}w.sys

glindorus

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {44a99463-0ff3-4b62-9d3c-802722bf3043}w.sys by glindorus has been detected as adware by 27 anti-malware scanners. It runs as a Windows kernel mode device driver named “{44a99463-0ff3-4b62-9d3c-802722bf3043}w”. 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 glindorus)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
28caf00d541a5889a79293e976a5ff34

SHA-1:
50c711f9617b4e936929443dfb17f1699d710b9d

SHA-256:
89716c427df0f85b4580f95fc29c364df7f411648d267c3572327ced0038592b

Scanner detections:
27 / 68

Status:
Adware

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

Analysis date:
4/25/2024 12:15:51 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.V
358

Agnitum Outpost
PUA.BrowseFox
7.1.1

AhnLab V3 Security
Win-PUP/BrowseFox.Gen
2015.01.02

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.198.242

avast!
Win32:BrowseFox-FA [PUP]
2014.9-160212

AVG
Skodna.glindorus
2017.0.2836

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16212

Bitdefender
Adware.BrowseFox.V
1.0.20.215

Bkav FE
W32.HfsAdware
1.3.0.6267

Clam AntiVirus
Win.Adware.Netfilter-134
0.98/19865

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
20547

Dr.Web
Trojan.Yontoo.1742
9.0.1.043

Emsisoft Anti-Malware
Adware.BrowseFox.V
8.16.02.12.09

F-Prot
W32/A-76f53fd6
v6.4.7.1.166

F-Secure
Adware.BrowseFox.V
11.2016-12-02_6

G Data
Adware.BrowseFox
16.2.24

McAfee
Adware-BrowseFox
5600.6492

MicroWorld eScan
Adware.BrowseFox.V
17.0.0.129

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.30.0.64448

Norman
Adware.BrowseFox.V
11.20160212

nProtect
Adware.BrowseFox.V
14.12.31.01

Qihoo 360 Security
Win32/Virus.Adware.618
1.0.0.1015

Reason Heuristics
PUP.Yontoo.glindorus (M)
16.2.12.9

Trend Micro House Call
Suspicious_GEN.F47V1203
7.2.43

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Threat.4150696
35418

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.2024

File size:
42.2 KB (43,192 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\{44a99463-0ff3-4b62-9d3c-802722bf3043}w.sys

Digital Signature
Signed by:
glindorus

Authority:
VeriSign, Inc.

Valid from:
9/19/2013 7:00:00 AM

Valid to:
9/20/2015 6:59:59 AM

Subject:
CN=glindorus, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=glindorus, 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:
38CA8426D3AC22743D3790B6CAB486B4

File PE Metadata
Compilation timestamp:
6/12/2015 7:07:50 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:KN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddwTOx:ehUcpH/0+LCf7EziDHhdp

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...
 
[+]

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{44a99463-0ff3-4b62-9d3c-802722bf3043}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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