Storimbo.BRT.Helper.exe

Storimbo

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file Storimbo.BRT.Helper.exe by Storimbo has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is also typically executed from the user's temporary directory.
Publisher:
Storimbo  (signed and verified)

Version:
1.0.0.0

MD5:
863eef7d5acb68809d8844a6b5c63b81

SHA-1:
9fdb4311cd4baf8f1c957cb5c57e7148bb134214

SHA-256:
7773e1f8e85172fd888dca3e6c1a6a336c9fa28a59ccf74bb1213423ac538565

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:
11/23/2024 3:09:42 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.12.1

File size:
157.3 KB (161,056 bytes)

Product version:
1.0.0.0

Original file name:
Storimbo.BRT.Helper.exe

Common path:
C:\users\{user}\appdata\local\temp\dwhc702.tmp

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
11/13/2013 7:00:00 PM

Valid to:
11/14/2014 6:59:59 PM

Subject:
CN=Storimbo, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Storimbo, 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:
1AC46D37F39AC4527AFEFF38AB955504

File PE Metadata
Compilation timestamp:
9/10/2014 5:30:26 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

.NET CLR dependent:
Yes

Entry address:
0x270E6

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:
6.1304

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

Code size:
148.5 KB (152,064 bytes)

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