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Norpalla.BRT.Helper.exe

Norpalla

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application Norpalla.BRT.Helper.exe by Norpalla has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Norpalla  (signed and verified)

Version:
1.0.0.0

MD5:
5714a99bf67dbdbbb17e4b049890f3b0

SHA-1:
36949cd490f06e6a456523e5ef484ac4bb52d6e3

SHA-256:
2661435d8bcd24d89c28f278444ab11b2cdc7ef28f8bd15df0679f0ce6a3c1c2

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
5/10/2024 12:05:39 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.Norpalla (M)
16.2.14.3

File size:
157.8 KB (161,568 bytes)

Product version:
1.0.0.0

Original file name:
Norpalla.BRT.Helper.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\norpalla\bin\norpalla.brt.helper.exe

Digital Signature
Signed by:
Norpalla

Authority:
VeriSign, Inc.

Valid from:
2/4/2014 7:00:00 AM

Valid to:
2/5/2015 6:59:59 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:
12/9/2014 5:37:51 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
3072:omdX7HYOVkixksGUviR8veM8tkhEciNt6NRzdCZ5Sfq:omh7fkixJGUE8veM8tkhGNMdM5L

Entry address:
0x272A6

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, 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, 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...
 
[+]

Entropy:
6.1268

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

Code size:
149 KB (152,576 bytes)

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