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{4a90d0b9-0668-4ad5-92c2-d78786884485}gw64.sys

Ace Race

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {4a90d0b9-0668-4ad5-92c2-d78786884485}gw64.sys by Ace Race has been detected as adware by 24 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{4a90d0b9-0668-4ad5-92c2-d78786884485}Gw64”. 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 Ace Race)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
c7d69292fc94ba762ddd9cc41bc604db

SHA-1:
07ced69555419850ea26211de54e2caedb11a362

SHA-256:
e06946a2853a5e28cb04692bba43e8b9967f36631d0cea9db9960dbe1ea5b26e

Scanner detections:
24 / 68

Status:
Adware

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

Analysis date:
4/25/2024 8:30:51 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
734

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
Win-PUP/BrowseFox.Gen
2015.01.27

AVG
Generic
2016.0.3212

Baidu Antivirus
Adware.Win64.BrowseFox
4.0.3.1521

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.160

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

Dr.Web
Tool.NetFilter.313
9.0.1.032

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
8.15.02.01.04

ESET NOD32
Win64/BrowseFox.CG (variant)
9.11078

Fortinet FortiGate
Adware/BrowseFox
2/1/2015

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

F-Secure
Adware.SwiftBrowse.CH
11.2015-01-02_1

G Data
Adware.SwiftBrowse.CH
15.2.25

K7 AntiVirus
Adware
13.192.14761

McAfee
Artemis!C7D69292FC94
5600.6868

MicroWorld eScan
Adware.SwiftBrowse.CH
16.0.0.96

NANO AntiVirus
Riskware.Win64.NetFilter.dmwtwy
0.30.0.64812

nProtect
Adware.SwiftBrowse.CH
15.01.26.01

Reason Heuristics
PUP.Yontoo
15.2.1.4

Trend Micro House Call
Suspicious_GEN.F47V0124
7.2.32

Trend Micro
HS_BROWSEFOX.SM
10.465.01

VIPRE Antivirus
Trojan.Win32.Generic
37002

Zillya! Antivirus
Adware.Yotoon.Win64.14
2.0.0.2046

File size:
47.6 KB (48,784 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\{4a90d0b9-0668-4ad5-92c2-d78786884485}gw64.sys

Digital Signature
Signed by:
Ace Race

Authority:
VeriSign, Inc.

Valid from:
10/7/2014 2:00:00 AM

Valid to:
10/8/2015 1:59:59 AM

Subject:
CN=Ace Race, O=Ace Race, 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:
47DF877938071D6194F321723076892E

File PE Metadata
Compilation timestamp:
1/23/2015 11:39:08 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:l77G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3XuX:RFID6EGnLA8AFJTNEVmD0

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:
{4a90d0b9-0668-4ad5-92c2-d78786884485}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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