utilbetarez.exe

Beta Rez

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

Version:
1.0.5491.31289

MD5:
1af7ddee78b6a64fc0f5355d7d887ff6

SHA-1:
78dd2d364de892c0920a5f2d20483b7d14eff04f

SHA-256:
17152c0552291de655a289814c254d0e884790336b56dc287862e58d1d8d9f4f

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:
10/23/2018 5:41:45 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.1.14.0

File size:
517.3 KB (529,696 bytes)

Product version:
1.0.5491.31289

Original file name:
BetaRez2015011401.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\beta rez\bin\utilbetarez.exe

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
3/19/2014 3:00:00 AM

Valid to:
3/20/2015 2:59:59 AM

Subject:
CN=Beta Rez, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Beta Rez, 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:
551AC20E6814AE1BD6F9CC331B9C1C38

File PE Metadata
Compilation timestamp:
1/14/2015 4:23:05 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0x81036

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:
5.9322

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

Code size:
508.5 KB (520,704 bytes)

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