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{c0a0d23a-662e-4f8c-9e81-e5f906e062fe}gw64.sys

PortalMore

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {c0a0d23a-662e-4f8c-9e81-e5f906e062fe}gw64.sys by PortalMore has been detected as adware by 18 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{c0a0d23a-662e-4f8c-9e81-e5f906e062fe}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 PortalMore)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
757fe60a129ffa0aafa44ef9ce120f03

SHA-1:
f0e74d62fb0d3dc8f32fdcf9341b3e30bb88932d

SHA-256:
6d730520c2424440840985af5b393435fa4124be752015b9ad0d418f86792ea6

Scanner detections:
18 / 68

Status:
Adware

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

Analysis date:
4/26/2024 8:12:11 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
827

Agnitum Outpost
Riskware.Agent
7.1.1

AVG
PortalMore
2015.0.3305

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
8.14.10.31.04

ESET NOD32
Win64/BrowseFox.AJ (variant)
8.10648

Fortinet FortiGate
Adware/BrowseFox
10/31/2014

F-Prot
W64/A-89938c80
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!757FE60A129F
5600.6961

MicroWorld eScan
Adware.SwiftBrowse.CH
15.0.0.912

NANO AntiVirus
Riskware.Win64.NetFilter.dhsghv
0.28.6.62995

nProtect
Adware.SwiftBrowse.CH
14.10.30.01

Reason Heuristics
PUP.PortalMore.n
14.10.31.4

VIPRE Antivirus
Trojan.Win32.Generic
34392

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\{c0a0d23a-662e-4f8c-9e81-e5f906e062fe}gw64.sys

Digital Signature
Signed by:
PortalMore

Authority:
VeriSign, Inc.

Valid from:
10/8/2014 3:00:00 AM

Valid to:
10/9/2015 2:59:59 AM

Subject:
CN=PortalMore, O=PortalMore, 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:
14DCC59945E4B46B41587E1F633D56C1

File PE Metadata
Compilation timestamp:
9/22/2014 10:01:54 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:l47G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3UY2X:SFID6EGnLA8AFJTNEVmDUJ

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:
6.3934

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{c0a0d23a-662e-4f8c-9e81-e5f906e062fe}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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