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{ebd8d0c0-e022-4b76-a1f2-bc2963e3a147}w.sys

Dynamo Combo

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {ebd8d0c0-e022-4b76-a1f2-bc2963e3a147}w.sys by Dynamo Combo has been detected as adware by 26 anti-malware scanners. It runs as a Windows kernel mode device driver named “{ebd8d0c0-e022-4b76-a1f2-bc2963e3a147}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 Dynamo Combo)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
c19e7d06f079e90f412a2231d2d9c931

SHA-1:
14d142455c6692f327752bc669bbd94bc16a7a22

SHA-256:
797d0085a0cd742a6fac46e81e7e94bbc7c20bf75d89eae2c7f253dde9b8b474

Scanner detections:
26 / 68

Status:
Adware

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

Analysis date:
4/19/2024 6:12:17 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.V
675

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.177.172

AVG
Generic
2016.0.3153

Baidu Antivirus
Adware.Win64.BrowseFox
4.0.3.1541

Bitdefender
Adware.BrowseFox.V
1.0.20.455

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

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
20896

Dr.Web
Tool.NetFilter.313
9.0.1.091

Emsisoft Anti-Malware
Adware.BrowseFox.V
8.15.04.01.12

F-Prot
W32/A-248e95ab
v6.4.7.1.166

F-Secure
Adware.BrowseFox.V
11.2015-01-04_4

G Data
Adware.BrowseFox
15.4.25

herdProtect (fuzzy)
variant of {bf167862-9559-4b38-94c6-2e5edae3632c}w.sys (Adware)
2015.7.5.23

K7 AntiVirus
Unwanted-Program
13.193.14805

McAfee
Artemis!C19E7D06F079
5600.6809

MicroWorld eScan
Adware.BrowseFox.V
16.0.0.273

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.28.2.62483

nProtect
Adware.BrowseFox.V
15.01.30.01

Qihoo 360 Security
Win32/Virus.Adware.618
1.0.0.1015

Reason Heuristics
PUP.Yontoo
15.4.1.0

Sophos
Browse Fox
4.98

Trend Micro House Call
Suspicious_GEN.F47V0118
7.2.91

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Yontoo
33842

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.1951

File size:
42.1 KB (43,160 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\{ebd8d0c0-e022-4b76-a1f2-bc2963e3a147}w.sys

Digital Signature
Signed by:
Dynamo Combo

Authority:
VeriSign, Inc.

Valid from:
12/17/2014 8:00:00 AM

Valid to:
12/18/2015 7:59:59 AM

Subject:
CN=Dynamo Combo, O=Dynamo Combo, 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:
14A953D6CFA5311EDEF6756B21556A7A

File PE Metadata
Compilation timestamp:
1/15/2015 2:38:03 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:DN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddm:JhUcpH/0+LCf7EziDHhd

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:
6.6139

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{ebd8d0c0-e022-4b76-a1f2-bc2963e3a147}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


Remove {ebd8d0c0-e022-4b76-a1f2-bc2963e3a147}w.sys - Powered by Reason Core Security
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