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constasurf.expext.dll

ConstaSurf

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

Version:
1.0.5910.24253

MD5:
27e3ec68a398b97eac82e94a5fdf8946

SHA-1:
75688daba5b64a9a44023a233182dfa8f792a986

SHA-256:
5f042e1ff456836f52a8dd3e4bf4c52adcefe7964f1336052432d4fa0904b80e

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:
4/29/2024 12:33:25 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.7.0

File size:
708.2 KB (725,232 bytes)

Product version:
1.0.5910.24253

Original file name:
2016030721.dll

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\constasurf\bin\plugins\constasurf.expext.dll

Digital Signature
Signed by:
ConstaSurf

Authority:
VeriSign, Inc.

Valid from:
3/15/2015 9:00:00 PM

Valid to:
4/14/2016 8:59:59 PM

Subject:
CN=ConstaSurf, O=ConstaSurf, 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:
284E019C78604C0DEBC01C1E082C455D

File PE Metadata
Compilation timestamp:
3/7/2016 6:28:31 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
11.0

.NET CLR dependent:
Yes

Entry address:
0xB0E3E

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:
700 KB (716,800 bytes)

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