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{b400490a-308a-47fd-b37c-61b7f9ded1a9}gw64.sys

Dolphin Deals

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {b400490a-308a-47fd-b37c-61b7f9ded1a9}gw64.sys by Dolphin Deals has been detected as adware by 19 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{b400490a-308a-47fd-b37c-61b7f9ded1a9}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 Dolphin Deals)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
36e5e511ea0bee43d856ad346fd30c0f

SHA-1:
85dcdb258630e61f050f12c65dd00766af4852f7

SHA-256:
91cf15af2afc929f58ca5c05f389aff00870845bb4bd57b85cc6011ecfcce5d2

Scanner detections:
19 / 68

Status:
Adware

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

Analysis date:
4/23/2024 10:34:18 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
827

Agnitum Outpost
Riskware.Agent
7.1.1

AVG
Generic
2015.0.3305

Baidu Antivirus
Adware.Win64.BrowseFox
4.0.3.141031

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.1520

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/21411

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
8.14.10.31.05

ESET NOD32
Win64/BrowseFox (variant)
8.10648

Fortinet FortiGate
Adware/BrowseFox
10/31/2014

F-Prot
W64/A-bd57be8c
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.CH
11.2014-31-10_6

G Data
Adware.SwiftBrowse.CH
14.10.24

McAfee
Artemis!36E5E511EA0B
5600.6961

MicroWorld eScan
Adware.SwiftBrowse.CH
15.0.0.912

nProtect
Adware.SwiftBrowse.CH
14.10.30.01

Reason Heuristics
PUP.DolphinDeals.n
14.10.31.4

Rising Antivirus
PE:Trojan.Win32.Generic.178E1110!395186448
23.00.65.141029

VIPRE Antivirus
Trojan.Win32.Generic
34392

File size:
47.7 KB (48,840 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\{b400490a-308a-47fd-b37c-61b7f9ded1a9}gw64.sys

Digital Signature
Signed by:
Dolphin Deals

Authority:
VeriSign, Inc.

Valid from:
4/29/2014 2:00:00 AM

Valid to:
4/30/2015 1:59:59 AM

Subject:
CN=Dolphin Deals, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Dolphin Deals, 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:
7B2BB0FC5A785F21B05232FFFBC2969A

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

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:ln7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3Nzh4ltT:lFID6EGnLA8AFJTNEVmDN4p

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:
{b400490a-308a-47fd-b37c-61b7f9ded1a9}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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