home

{21b5abe9-a6e9-4a3b-ae74-84488fe21796}gw64.sys

Source App

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {21b5abe9-a6e9-4a3b-ae74-84488fe21796}gw64.sys by Source App has been detected as adware by 15 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{21b5abe9-a6e9-4a3b-ae74-84488fe21796}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 Source App)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
ae2e6894ac909772f5ade57f0364c606

SHA-1:
2bf68ab4442e1563e0fa7c1022ae02aac23568c0

SHA-256:
c35307e7ce3a3484ccf124b36d3451d25c3cfeef0d496948edfc9b942364f24d

Scanner detections:
15 / 68

Status:
Adware

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

Analysis date:
4/24/2024 7:33:42 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
776

Agnitum Outpost
Riskware.Agent
7.1.1

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.1775

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

Dr.Web
Tool.NetFilter.313
9.0.1.0355

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
8.14.12.21.09

ESET NOD32
Win64/BrowseFox.CG (variant)
8.10808

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

F-Secure
Adware.SwiftBrowse.CH
11.2014-21-12_1

G Data
Adware.SwiftBrowse.CH
14.12.24

MicroWorld eScan
Adware.SwiftBrowse.CH
15.0.0.1065

nProtect
Adware.SwiftBrowse.CH
14.12.01.01

Reason Heuristics
PUP.SourceApp.n
14.12.21.9

VIPRE Antivirus
Trojan.Win32.Generic
35316

Zillya! Antivirus
Adware.Yotoon.Win64.14
2.0.0.1997

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\{21b5abe9-a6e9-4a3b-ae74-84488fe21796}gw64.sys

Digital Signature
Signed by:
Source App

Authority:
VeriSign, Inc.

Valid from:
10/16/2014 4:00:00 AM

Valid to:
10/17/2015 3:59:59 AM

Subject:
CN=Source App, O=Source App, 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:
5436973D688F7AF7E3F875CD8B463EDD

File PE Metadata
Compilation timestamp:
12/1/2014 1:50:24 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lZL7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3o/Ibz://FID6EGnLA8AFJTNEVmD+IP

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...
 
[+]

Entropy:
6.3936

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{21b5abe9-a6e9-4a3b-ae74-84488fe21796}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.