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{c0a0d23a-662e-4f8c-9e81-e5f906e062fe}gw.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}gw.sys by PortalMore has been detected as adware by 14 anti-malware scanners. It runs as a Windows kernel mode device driver named “{c0a0d23a-662e-4f8c-9e81-e5f906e062fe}Gw”. 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:
67781bd68decf8b3b9e5719d694ca23d

SHA-1:
be3f50b933622aaa3eccb529755d606bfd5ad654

SHA-256:
d0ff31bd7a848170208c79d7f0b88ab80a74dea91b314f0847c9e5adb47dc191

Scanner detections:
14 / 68

Status:
Adware

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

Analysis date:
4/24/2024 8:05:27 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.182.42

AVG
PortalMore
2015.0.3305

Baidu Antivirus
Adware.Win64.BrowseFox
4.0.3.141030

Clam AntiVirus
Win.Adware.Netfilter-134
0.98/21411

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

ESET NOD32
Win64/BrowseFox.AJ (variant)
8.10639

F-Prot
W32/A-248e95ab
v6.4.7.1.166

NANO AntiVirus
Riskware.Win32.NetFilter.dgkdox
0.28.6.62995

Qihoo 360 Security
Win32/Virus.Adware.618
1.0.0.1015

Reason Heuristics
PUP.PortalMore.l
14.10.27.8

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Threat.5061968
34232

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.1972

File size:
42.1 KB (43,152 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Common path:
C:\Windows\System32\drivers\{c0a0d23a-662e-4f8c-9e81-e5f906e062fe}gw.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 10:01:51 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:fN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddTv:FhUcpH/0+LCf7EziDHhdd

Entry address:
0xA03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 70, FF, FF, CC, CC, 94, A1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, CE, A4, 00, 00, E0, 80, 00, 00, B4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 24, A5, 00, 00, 00, 80, 00, 00, EC, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A4, A9, 00, 00, 38, 80, 00, 00, C4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9C, AA, 00, 00, 10, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, FC, A4, 00, 00, 10, A5, 00, 00, E8, A4...
 
[+]

Code size:
28 KB (28,672 bytes)

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

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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