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{be5bf058-a067-4076-8c2e-22b9345a0260}w.sys

Klip Pal

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {be5bf058-a067-4076-8c2e-22b9345a0260}w.sys by Klip Pal has been detected as adware by 14 anti-malware scanners. It runs as a Windows kernel mode device driver named “{be5bf058-a067-4076-8c2e-22b9345a0260}w”. 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 Klip Pal)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
c621c6603cd7e643be8b3489b2daf315

SHA-1:
110efe34fc2ba27a7b8677d606ac655b3c1a95d2

SHA-256:
aff54f53d7a9e6d74cc99f86bd492a0985505d386b4f066952e99729d1da2b41

Scanner detections:
14 / 68

Status:
Adware

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

Analysis date:
5/12/2024 8:33:27 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
RiskWare.NetFilter
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2014.09.29

Avira AntiVirus
Adware/BrowseFox.A.168
7.11.175.78

AVG
Generic
2015.0.3334

Comodo Security
Application.Win32.RiskWare.NetFilter.D
19653

Dr.Web
Trojan.BPlug.123
9.0.1.0275

F-Prot
W32/A-0937c3f0
v6.4.7.1.166

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.7.8.0

NANO AntiVirus
Riskware.Win32.Yotoon.dfewso
0.28.2.62286

Qihoo 360 Security
Win32/Virus.Adware.c12
1.0.0.1015

Reason Heuristics
PUP.KlipPal.k
14.10.2.1

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Threat.4741131
32938

Zillya! Antivirus
Adware.Yotoon.Win64.8
2.0.0.1937

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\{be5bf058-a067-4076-8c2e-22b9345a0260}w.sys

Digital Signature
Signed by:
Klip Pal

Authority:
VeriSign, Inc.

Valid from:
8/5/2014 9:00:00 AM

Valid to:
8/6/2015 8:59:59 AM

Subject:
CN=Klip Pal, O=Klip Pal, 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:
59A8A4CF2048A90F9AE8754A98A645E4

File PE Metadata
Compilation timestamp:
9/23/2014 4:01:51 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:FN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJdd7Jxui:HhUcpH/0+LCf7EziDHhdVu

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...
 
[+]

Entropy:
6.6155

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{be5bf058-a067-4076-8c2e-22b9345a0260}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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