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webporpoise2015012121.exe

Webporpoise

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file webporpoise2015012121.exe by Webporpoise has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Webporpoise  (signed and verified)

Version:
1.0.5499.24102

MD5:
4e501f38472fa06ccbe53edeef6cd203

SHA-1:
8ae4b1ae8ae8ed2d9938b567ef3ee74473f8e460

SHA-256:
c3caf2adff039e2e6a3507b592ee17f7940689cb5869d97f8b6fb639ebbffc2b

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:
4/26/2024 1:55:54 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.Webporpoise (M)
16.1.20.21

File size:
517.3 KB (529,696 bytes)

Product version:
1.0.5499.24102

Original file name:
webporpoise2015012121.exe

Common path:
C:\Program Files\webporpoise\bin\tmp6eb4.tmp

Digital Signature
Signed by:
Webporpoise

Authority:
VeriSign, Inc.

Valid from:
3/13/2014 6:00:00 PM

Valid to:
3/14/2015 5:59:59 PM

Subject:
CN=Webporpoise, OU=Digital ID Class 3 - Microsoft Software Validation v2, 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:
77E73438E8DB62CBB923965C646E769F

File PE Metadata
Compilation timestamp:
1/21/2015 3:23:31 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
12288:o9xaFqyLqTHNcZzUoIH2nNhUDmmxOOP12MfDQ:onagyGTWIH2NExOOPkr

Entry address:
0x81012

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:
5.9264

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

Code size:
508.5 KB (520,704 bytes)

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