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utilmaucampo.exe

maucampo

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application utilmaucampo.exe by maucampo has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a separate (within the context of its own process) windows Service named “Update maucampo”.
Publisher:
maucampo  (signed and verified)

Version:
1.0.5309.26533

MD5:
df0bc9b5321366d7d2fb39ccf5d23fb7

SHA-1:
5a2205545c513b365d103c5a73d41c7631d53398

SHA-256:
3dce4dcbc5d77cc16d7126651eecea8431d9669b968692895777fe984af82b9b

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:
4/19/2024 3:29:45 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.maucampo (M)
16.2.10.15

File size:
314.3 KB (321,816 bytes)

Product version:
1.0.5309.26533

Original file name:
maucampo.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\maucampo\bin\utilmaucampo.exe

Digital Signature
Signed by:
maucampo

Authority:
VeriSign, Inc.

Valid from:
11/26/2013 8:00:00 PM

Valid to:
11/27/2014 7:59:59 PM

Subject:
CN=maucampo, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=maucampo, L=San Diego, 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:
40BF170484E09DB904849DB86C86A494

File PE Metadata
Compilation timestamp:
7/15/2014 11:44:41 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
6144:TBGBn8zvVbNnURkLASnu48rPoMs7ZtmkXH56pDpbFNAB:TBGBOvHnUhsxukgZHeB

Entry address:
0x4E59A

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, 02, 00, 10, 00, 00, 00, 20, 00, 00, 80, 18, 00...
 
[+]

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

Code size:
305.5 KB (312,832 bytes)

Service
Display name:
Update maucampo

Type:
Win32OwnProcess


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