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webwaltz.expext.dll

web waltz

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

Version:
1.0.5582.1741

MD5:
8a689bbb69c1c0dd160b99f244a1dbd5

SHA-1:
90d4b6149e01647d4c9c6775d607c1ca3528e0f1

SHA-256:
a97473309fe40e8625ffd159dd88d4bd59c781d0c4d405b33315fc65ef80c504

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:
5/21/2024 8:59:20 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.5.17

File size:
500.8 KB (512,800 bytes)

Product version:
1.0.5582.1741

Original file name:
webwaltz.ExpExt2015041408.dll

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\web waltz\bin\plugins\webwaltz.expext.dll

Digital Signature
Signed by:
web waltz

Authority:
VeriSign, Inc.

Valid from:
9/18/2013 7:00:00 PM

Valid to:
9/19/2015 6:59:59 PM

Subject:
CN=web waltz, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=web waltz, 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:
5FD8087829E831DA83F74489B52D1DFF

File PE Metadata
Compilation timestamp:
4/14/2015 3:58:14 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

Entry address:
0x7D172

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:
6.9752

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

Code size:
492.5 KB (504,320 bytes)

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