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237a.dll

Round World

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module 237a.dll, “TODO: <File description>” by Round World has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
TODO: <Company name>  (signed by Round World)

Description:
TODO: <File description>

Version:
4.0.0.3

MD5:
a4d59c32e35b573893cc865c7841fac1

SHA-1:
4548d68800af67cd60826d60fde5c8e5f4b450b7

SHA-256:
574be12d6f6e05aa5b1581964e55b23322d407fcf18453092e80926516bf8aae

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 9:58:34 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.15.22

File size:
278.7 KB (285,424 bytes)

Product version:
4.0.0.3

Copyright:
TODO: (c) <Company name>. All rights reserved.

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\packages\windows_ie_ac_001\ac\avg web tuneup\cache\Program Files\round world\bin\237a.dll

Digital Signature
Signed by:
Round World

Authority:
VeriSign, Inc.

Valid from:
1/10/2015 9:00:00 PM

Valid to:
1/11/2016 8:59:59 PM

Subject:
CN=Round World, O=Round World, 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:
1E6F69E3F386155D988683D665483D02

File PE Metadata
Compilation timestamp:
1/11/2015 8:51:00 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x20437

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, A1, 7E, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, B8, 2D, 8E, 02, 10, A3, 98, F2, 03, 10, C7, 05, 9C, F2, 03, 10, 23, 85, 02, 10, C7, 05, A0, F2, 03, 10, D7, 84, 02, 10, C7, 05, A4, F2, 03, 10, 10, 85, 02, 10, C7, 05, A8, F2, 03, 10, 79, 84, 02, 10, A3, AC, F2, 03, 10, C7, 05, B0, F2, 03, 10, A5, 8D, 02, 10, C7, 05, B4, F2, 03, 10, 95, 84, 02, 10, C7, 05, B8, F2, 03, 10, F7, 83, 02, 10, C7, 05, BC, F2, 03, 10, 83, 83...
 
[+]

Entropy:
6.4996

Code size:
196 KB (200,704 bytes)

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