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norpallabho.dll

Norpalla

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module norpallabho.dll by Norpalla has been detected as adware by 27 anti-malware scanners. It is installed within the context of Internet Explore as a BHO (Browser Helper Object) under the name ‘Norpalla’. This file is typically installed with the program Norpalla by Yontoo Technology, Inc. which is a potentially unwanted software program. 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:
Norpalla  (signed and verified)

Product:
Norpalla

Version:
1.0.0.3

MD5:
b25dc58d7142e5a0224bc0002705c5b4

SHA-1:
359a1e70bf9ecb2e915a2a4b221f02fc5427758d

SHA-256:
4010302fa8260b85f7a8a44b11f569def1141ff7c0cfc154ded8efe6d3aeb722

Scanner detections:
27 / 68

Status:
Adware

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

Analysis date:
4/23/2024 8:31:23 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.BHO.Agent.4
836

AhnLab V3 Security
PUP/Win32.BrowseFox
2014.07.16

Avira AntiVirus
APPL/BrowseFox.Gen2
7.11.171.152

AVG
BrowseFox.F
2015.0.3314

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141022

Bitdefender
Gen:Variant.Adware.BHO.Agent.4
1.0.20.1475

Comodo Security
Application.Win32.BrowseFox.JM
19471

Dr.Web
Trojan.BPlug.144
9.0.1.0295

Emsisoft Anti-Malware
Gen:Variant.Adware.BHO.Agent
8.14.10.22.07

ESET NOD32
Win32/BrowseFox (variant)
8.10101

Fortinet FortiGate
Adware/Agent
10/22/2014

F-Secure
Gen:Variant.Adware.BHO.Agent.4
11.2014-22-10_4

G Data
Gen:Variant.Adware.BHO.Agent
14.10.24

IKARUS anti.virus
AdWare.BrowseFox
t3scan.1.7.8.0

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.3063

Malwarebytes
PUP.Optional.Norpalla.A
v2014.10.22.07

McAfee
Artemis!B25DC58D7142
5600.6970

MicroWorld eScan
Gen:Variant.Adware.BHO.Agent.4
15.0.0.885

NANO AntiVirus
Riskware.Win32.Agent.cuenda
0.28.2.60881

Panda Antivirus
Trj/CI.A
14.10.22.07

Qihoo 360 Security
HEUR/Malware.QVM30.Gen
1.0.0.1015

Reason Heuristics
Adware.Yontoo.BHO.L
14.10.22.7

Sophos
Generic PUA NG
4.98

SUPERAntiSpyware
Adware.BrowseFox/Variant
10284

Trend Micro House Call
Suspicious_GEN.F47V0715
7.2.295

VIPRE Antivirus
Yontoo
32994

Zillya! Antivirus
Adware.Agent.Win32.9009
2.0.0.1859

File size:
244.3 KB (250,144 bytes)

Product version:
1.0.0.3

Copyright:
(c) Norpalla. All rights reserved.

Original file name:
NorpallaIEClient.dll

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\norpalla\norpallabho.dll

Digital Signature
Signed by:
Norpalla

Authority:
VeriSign, Inc.

Valid from:
2/4/2014 3:00:00 AM

Valid to:
2/5/2015 2:59:59 AM

Subject:
CN=Norpalla, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Norpalla, 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:
3CF8FDC7B1329843A9D5EE18CBB6A945

File PE Metadata
Compilation timestamp:
8/12/2014 8:37:40 AM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:2RhoO5Hqf9iKQkpiUFjIliBe9eAxjN+rIaIbGDh/faqU:2p5HqfxQSineGUICV/fap

Entry address:
0x12854

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 41, 8D, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, 70, 30, 03, 10, E8, BD, 01, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 04, 78, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, FC, A4, 02, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Entropy:
6.3612

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

Internet Explorer BHO
Display name:
Norpalla

CLSID:
{18b20944-f54e-4509-88fa-f0ad137bf8de}


The file norpallabho.dll has been discovered within the following program.

Norpalla  by Yontoo Technology, Inc.
This adware software (a branded version of the morphing Yontoo adware browser addon) injects itself into the user's web browser (IE, Chrome and Firefox) and will display out-of context advertising on web sites that are not associated with Yontoo or its affiliate partners.
norpalla.com/support
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