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{8c8dfdee-2729-423a-bb32-4feae7bc2e81}w.sys

Glomatron

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {8c8dfdee-2729-423a-bb32-4feae7bc2e81}w.sys by Glomatron has been detected as adware by 24 anti-malware scanners. It runs as a Windows kernel mode device driver named “{8c8dfdee-2729-423a-bb32-4feae7bc2e81}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 Glomatron)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
f86cee53fea3aca6024e2d463e081814

SHA-1:
fa6082bfa9263801f614d2c6c715bee90217ed67

SHA-256:
45c2d03598ec61d2718d4b82e141b5958615c580f397d3c11aee45a6b3c68efc

Scanner detections:
24 / 68

Status:
Adware

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

Analysis date:
4/23/2024 7:33:58 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.V
491

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.189.158

AVG
Generic
2016.0.2969

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.15101

Bitdefender
Adware.BrowseFox.V
1.0.20.1370

Clam AntiVirus
Win.Adware.Netfilter-134
0.98/21511

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
20244

Dr.Web
Tool.NetFilter.313
9.0.1.0274

Emsisoft Anti-Malware
Adware.BrowseFox.V
8.15.10.01.08

ESET NOD32
Win64/BrowseFox.AK (variant)
9.10804

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

F-Secure
Adware.BrowseFox.V
11.2015-01-10_5

G Data
Adware.BrowseFox
15.10.24

McAfee
Artemis!F86CEE53FEA3
5600.6625

MicroWorld eScan
Adware.BrowseFox.V
16.0.0.822

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.28.6.63726

nProtect
Adware.BrowseFox.V
14.11.28.01

Qihoo 360 Security
Win32/Virus.Adware.618
1.0.0.1015

Reason Heuristics
PUP.Yontoo.Glomatron (M)
15.10.1.20

Sophos
Generic PUA PK
4.98

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
35290

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.1996

File size:
42.2 KB (43,200 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Common path:
C:\Windows\System32\drivers\{8c8dfdee-2729-423a-bb32-4feae7bc2e81}w.sys

Digital Signature
Signed by:
Glomatron

Authority:
VeriSign, Inc.

Valid from:
2/4/2014 3:00:00 AM

Valid to:
2/5/2015 2:59:59 AM

Subject:
CN=Glomatron, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Glomatron, 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:
69C9F9EB400285E909E4D59CB9FD1A45

File PE Metadata
Compilation timestamp:
11/27/2014 8:32:32 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:eN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddFKMW:ihUcpH/0+LCf7EziDHhdzW

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...
 
[+]

Entropy:
6.6132

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{8c8dfdee-2729-423a-bb32-4feae7bc2e81}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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