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{1c7f4e5b-0b01-4ace-af25-38696a6406fc}w64.sys

GrooveDock

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {1c7f4e5b-0b01-4ace-af25-38696a6406fc}w64.sys by GrooveDock has been detected as adware by 30 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{1c7f4e5b-0b01-4ace-af25-38696a6406fc}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 GrooveDock)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
f4400b078ca275dc9790c6018cf396b7

SHA-1:
199bee27380dfa408e1ef50509ddbae27032dd3d

SHA-256:
421c71b35333c8d18a6fca92000ffcb81f8d07635b39496c6b648a620d09b328

Scanner detections:
30 / 68

Status:
Adware

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

Analysis date:
4/25/2024 1:14:21 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.L
374

Agnitum Outpost
PUA.Yotoon
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.15

Avira AntiVirus
APPL/BrowseFox.zta
7.11.171.22

avast!
Win32:BrowseFox-CH [PUP]
2014.9-160127

AVG
NetCrawl
2017.0.2852

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16127

Bitdefender
Adware.SwiftBrowse.L
1.0.20.135

Clam AntiVirus
Win.Adware.Swiftbrowse-284
0.98/21411

Comodo Security
UnclassifiedMalware
18740

Dr.Web
Trojan.BPlug.123
9.0.1.027

Emsisoft Anti-Malware
Adware.SwiftBrowse.L
8.16.01.27.04

ESET NOD32
Win64/Riskware.NetFilter.F application
10.7.0.302.0

Fortinet FortiGate
Riskware/PUP_z
1/27/2016

F-Prot
W64/A-a8e2f748
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.L
11.2016-27-01_4

G Data
Adware.SwiftBrowse
16.1.24

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.7.8.0

Malwarebytes
PUP.Optional.NetFilter
v2016.01.27.04

McAfee
Artemis!EB4C2DE4F874
5600.6508

MicroWorld eScan
Adware.SwiftBrowse.L
17.0.0.81

nProtect
Adware.SwiftBrowse.L
14.05.23.01

Qihoo 360 Security
Win32/Trojan.RiskWare.a25
1.0.0.1015

Reason Heuristics
PUP.Yontoo.GrooveDock (M)
16.1.27.4

Rising Antivirus
PE:Trojan.Win32.Generic.1764F718!392492824
23.00.65.16125

Sophos
BrowseSmart
4.98

Trend Micro House Call
TROJ_GEN.F47V0523
7.2.27

Trend Micro
TROJ_SPNV.03I614
10.465.27

VIPRE Antivirus
Trojan.Win32.Generic
33126

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1922

File size:
47.7 KB (48,832 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\{1c7f4e5b-0b01-4ace-af25-38696a6406fc}w64.sys

Digital Signature
Signed by:
GrooveDock

Authority:
VeriSign, Inc.

Valid from:
1/2/2014 10:00:00 PM

Valid to:
1/3/2015 9:59:59 PM

Subject:
CN=GrooveDock, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=GrooveDock, 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:
0C7421B6412CA84DD678EF8B3B2645BA

File PE Metadata
Compilation timestamp:
9/22/2014 4:01:54 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lo7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD348T/+:uFID6EGnLA8AFJTNEVmD4E

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:
{1c7f4e5b-0b01-4ace-af25-38696a6406fc}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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