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{31a2f244-4a67-4367-b593-df9513aea360}gw64.sys

PortalMore

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {31a2f244-4a67-4367-b593-df9513aea360}gw64.sys by PortalMore has been detected as adware by 19 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{31a2f244-4a67-4367-b593-df9513aea360}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:
d1b9ab3f76de136f27151bfe515a16f6

SHA-1:
32527aa1a83d0b1bdfe381633562a612d9439f42

SHA-256:
c1f087272cdcd4735bad3bd9e0f0487b76130014d5182becd25d706761c80807

Scanner detections:
19 / 68

Status:
Adware

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

Analysis date:
4/26/2024 4:08:13 PM 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

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
Tool.NetFilter.313
9.0.1.0304

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
8.14.10.31.04

ESET NOD32
Win64/BrowseFox.AJ (variant)
8.10598

Fortinet FortiGate
Adware/BrowseFox
10/31/2014

F-Prot
W64/A-6238163f
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!979B81F90849
5600.6961

MicroWorld eScan
Adware.SwiftBrowse.CH
15.0.0.912

nProtect
Adware.SwiftBrowse.CH
14.10.21.01

Reason Heuristics
PUP.PortalMore.n
14.10.31.4

Rising Antivirus
PE:Trojan.Win32.Generic.177F80B1!394231985
23.00.65.141029

VIPRE Antivirus
Trojan.Win32.Generic
34122

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\{31a2f244-4a67-4367-b593-df9513aea360}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:ls7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3UY29c:mFID6EGnLA8AFJTNEVmDU4

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:
{31a2f244-4a67-4367-b593-df9513aea360}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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