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webporpoiseun.exe

Webporpoise

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application webporpoiseun.exe by Webporpoise has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is the uninstaller utility registered in the Windows Control Panel for the program webporpoise by webporpoise.
Publisher:
Webporpoise  (signed and verified)

Version:
1.0.0.0

MD5:
4d2646611e43d446cb6a67912a740a3e

SHA-1:
dc030b4bec295ca8ac6bfaf94a07f8fafe7ba2f8

SHA-256:
722264f96e98de574e84177386511e2885dbdb69155042a5f699795161ad53f6

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:
5/3/2024 1:45:08 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.11.9

File size:
529.7 KB (542,456 bytes)

Product version:
1.0.0.0

Original file name:
webporpoise Uninstaller.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\webporpoise\webporpoiseun.exe

Digital Signature
Signed by:
Webporpoise

Authority:
VeriSign, Inc.

Valid from:
3/12/2015 3:00:00 AM

Valid to:
4/11/2016 2:59:59 AM

Subject:
CN=Webporpoise, O=Webporpoise, 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:
0B91659157A711B12C4C801CB6C9FC3E

File PE Metadata
Compilation timestamp:
8/21/2015 10:09:16 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

.NET CLR dependent:
Yes

Entry address:
0x826DE

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:
5.9636

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

Code size:
514 KB (526,336 bytes)

Program Uninstaller
Program name:
webporpoise

Display publisher:
webporpoise

Display version:
2014.05.30.191450

Uninstall string:
C:\Program Files (x86)\webporpoise\webporpoiseUn.exe OFS_


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