DynamoCombo.OptChecker.dll

Dynamo Combo

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

Version:
1.0.5489.42193

MD5:
3a37d0c00c9f73a78548bb5aa85376d6

SHA-1:
9c1015843d3c30245807bdb97cd112713b461cd9

SHA-256:
7d995e8af7ed0066cffb008f6c6a6a9397457b87ce4dc628af897d2b07973ce4

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:
11/27/2024 2:17:47 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.1.28.17

File size:
723.2 KB (740,600 bytes)

Product version:
1.0.5489.42193

Original file name:
DynamoCombo.OptChecker.dll

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\dynamo combo\bin\plugins\dynamocombo.optchecker.dll

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
12/16/2014 6:00:00 PM

Valid to:
12/17/2015 5:59:59 PM

Subject:
CN=Dynamo Combo, O=Dynamo Combo, 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:
14A953D6CFA5311EDEF6756B21556A7A

File PE Metadata
Compilation timestamp:
1/12/2015 1:26:31 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0xB4A0A

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, 02, 00, 00, 00, 74, 00, 00, 00, 4C, 4A, 0B, 00, 4C, 2C, 0B, 00, 52, 53, 44, 53, 16, A0, CF, D9, DC, E9, 89, 4C, B4, 8B, 77, DA, B4, 8D, 97, A2, 01, 00, 00, 00, 44, 3A, 5C, 55, 74, 69, 6C, 69, 74, 69, 65, 73, 5C, 78, 7A, 30, 6F, 31, 66, 73, 6A, 2E, 67, 62, 79, 5C, 44, 65, 73, 6B, 74, 6F, 70, 5C, 44, 65, 73, 6B...
 
[+]

Entropy:
5.8653

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

Code size:
715 KB (732,160 bytes)

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