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springsmart.ofsvc.dll

Spring Smart

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

Version:
1.0.5584.11196

MD5:
5610ebe073a9c30e78ba8ab107e58a28

SHA-1:
3a77daf7f6c496e32743e8bc4643fe6617a56831

SHA-256:
a20c4899dc3f1c340c2afccefab80578cbe2bfdfd784e3fdb83da56b7e5c4520

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:
5/6/2024 10:24:19 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.16.21

File size:
2.4 MB (2,500,392 bytes)

Product version:
1.0.5584.11196

Original file name:
SpringSmart.OfSvc2015041614.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\spring smart\bin\plugins\springsmart.ofsvc.dll

Digital Signature
Signed by:
Spring Smart

Authority:
VeriSign, Inc.

Valid from:
8/22/2013 8:00:00 AM

Valid to:
8/23/2015 7:59:59 AM

Subject:
CN=Spring Smart, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Spring Smart, 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:
5D69FD87A1BCECDB8891F45F148E34E2

File PE Metadata
Compilation timestamp:
4/16/2015 10:13:25 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0x2625AA

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, 01, 00, 10, 00, 00, 00, 18, 00, 00, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 01, 00...
 
[+]

Entropy:
7.2581

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

Code size:
2.4 MB (2,491,904 bytes)

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