utilbringstar.exe

BringStar

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application utilbringstar.exe by BringStar 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 “Util BringStar”.
Publisher:
BringStar  (signed and verified)

Version:
1.0.5253.24676

MD5:
c8a158d8fda45110446893f8fe806d13

SHA-1:
aca0c1aadc504c032216b68ac644f58d60ebcfa5

SHA-256:
ab33be35894bcafc44d2af36ca345de30ec5c3102be2f1ffa33291617c286224

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:
4/25/2024 8:59:46 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.BringStar (M)
16.2.11.4

File size:
310.3 KB (317,728 bytes)

Product version:
1.0.5253.24676

Original file name:
BringStar.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\bringstar\bin\utilbringstar.exe

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
1/9/2014 1:00:00 AM

Valid to:
1/10/2015 12:59:59 AM

Subject:
CN=BringStar, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=BringStar, 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:
0690B649CE1A1DFAAC570B0AAE6E5D30

File PE Metadata
Compilation timestamp:
5/20/2014 4:42:47 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
6144:+dZEBn8YSWLt4UhMzEkzI5iVsFYnucZWQBg4ub7:+dZEBVSdUhMzMsu2WQj2

Entry address:
0x4D58E

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...
 
[+]

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

Code size:
301.5 KB (308,736 bytes)

Service
Display name:
Util BringStar

Type:
Win32OwnProcess


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