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{31a2f244-4a67-4367-b593-df9513aea360}w64.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}w64.sys by PortalMore has been detected as adware by 24 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{31a2f244-4a67-4367-b593-df9513aea360}w64”. 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:
1.4.3.1 built by: WinDDK

MD5:
2e1d8097167dfa15370f9123e2a9eb6b

SHA-1:
81e001b2fbb3d828521dd9633edf80220fc8381e

SHA-256:
f31f163074c5cfed46d650d707f7a20b055655d4fa681346336eb20a655ac57e

Scanner detections:
24 / 68

Status:
Adware

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

Analysis date:
4/20/2024 1:22:06 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.BV
827

Agnitum Outpost
PUA.Yotoon
7.1.1

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.19

AVG
Generic
2015.0.3305

Baidu Antivirus
Trojan.Win64.Riskware.bNetFilter
4.0.3.141030

Bitdefender
Adware.SwiftBrowse.BV
1.0.20.1515

Clam AntiVirus
Win.Adware.Swiftbrowse-284
0.98/21411

Dr.Web
Trojan.BPlug.123
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.BV
8.14.10.30.07

ESET NOD32
Win64/Riskware.NetFilter.F application
7.0.302.0

Fortinet FortiGate
Riskware/NetFilter
10/30/2014

F-Prot
W64/A-abca7297
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.BV
11.2014-30-10_5

G Data
Adware.SwiftBrowse.BV
14.10.24

IKARUS anti.virus
PUA.RiskWare.NetFilter
t3scan.1.7.8.0

McAfee
RDN/Generic PUP.z!ef
5600.6961

MicroWorld eScan
Adware.SwiftBrowse.BV
15.0.0.909

Norman
BrowseFox.CI
11.20141030

nProtect
Adware.SwiftBrowse.BV
14.09.25.01

Panda Antivirus
Trj/CI.A
14.10.30.07

Reason Heuristics
PUP.PortalMore.m
14.10.30.19

Trend Micro House Call
Suspicious_GEN.F47V0826
7.2.303

VIPRE Antivirus
Trojan.Win32.Generic
33242

Zillya! Antivirus
Adware.Yotoon.Win64.3
2.0.0.1926

File size:
59.6 KB (61,016 bytes)

Product version:
1.4.3.1

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}w64.sys

Digital Signature
Signed by:
PortalMore

Authority:
DigiCert Inc

Valid from:
6/8/2014 8:00:00 PM

Valid to:
6/17/2015 8:00:00 AM

Subject:
CN=PortalMore, O=PortalMore, L=Santa Monica, S=California, C=US

Issuer:
CN=DigiCert Assured ID Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0EBE0142555C3B0E57555883DE1E0967

File PE Metadata
Compilation timestamp:
8/6/2014 7:52:18 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:6ot2dxF9O8ZF33iqiIy9387Hp9XcfBzSowidIsUxFMdH:69JRicy938Lp9eW1jkx

Entry address:
0xF064

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, 2E, 20, FF, FF, CC, CC, 38, F2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, F6, 00, 00, 60, C1, 00, 00, 28, F1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, F9, 00, 00, 50, C0, 00, 00, D8, F0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, FA, 00, 00, 00, C0, 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, 9A, FA, 00, 00, 00, 00, 00, 00, 86, FA, 00, 00...
 
[+]

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{31a2f244-4a67-4367-b593-df9513aea360}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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