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Norpalla.BrowserFilter.dll

Norpalla

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module Norpalla.BrowserFilter.dll by Norpalla has been detected as adware by 6 anti-malware scanners. 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)

Version:
1.0.5406.37357

MD5:
db1b90f1dc550e96bb3830e352812472

SHA-1:
6194cf1f09945e00d833c3d4a38062b439f8ca2f

SHA-256:
8639f30b8932f852375604ed9ea1f336bc88cbd374964c2cf14c9dbac2cb8c2e

Scanner detections:
6 / 68

Status:
Adware

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

Analysis date:
5/5/2024 12:42:17 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Norpalla
2015.0.3314

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141022

ESET NOD32
Win64/BrowseFox.AM (variant)
8.10601

Reason Heuristics
PUP.Norpalla.V
14.10.22.8

Sophos
Browse Fox
4.98

VIPRE Antivirus
Threat.4741131
33706

File size:
643.8 KB (659,232 bytes)

Product version:
1.0.5406.37357

Original file name:
Norpalla.BrowserFilter.dll

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\norpalla\bin\plugins\norpalla.browserfilter.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:
10/21/2014 7:45:19 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
12288:lxEZ4sITJFxYMIIaDZGUriFBHml813Cmbd4ic6jokyPQteDtQgOMYYTw6l:l1nxYM7uGjuDmbd4J60kyPQoqMpTpl

Entry address:
0xA0C4A

Entry point:
FF, 25, 00, 20, 40, 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, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 02, 00, 00, 00, 77, 00, 00, 00, 8C, 0C, 0A, 00, 8C, EE, 09, 00, 52, 53, 44, 53, 2E, 00, BA, 9F, 5A, 6B, C2, 48, 89, 0C, C0, 80, 3F, B3, 7D, 2B, 01, 00, 00, 00, 44, 3A, 5C, 55, 74, 69, 6C, 69, 74, 69, 65, 73, 5C, 74, 6C, 62, 7A, 35, 6F, 6A, 6C, 2E, 71, 66, 78, 5C, 44, 65, 73, 6B, 74, 6F, 70, 5C, 44, 65, 73, 6B...
 
[+]

Entropy:
7.6003

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
635.5 KB (650,752 bytes)

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