f365.dll

Web Layers

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module f365.dll, “TODO: <File description>” by Web Layers 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 Web Layers)

Description:
TODO: <File description>

Version:
4.0.0.3

MD5:
cbd5fe89ff181f91a212a1c36052e173

SHA-1:
5b745f9a629470975789c487eea85e5f0b4342bb

SHA-256:
992747d2dd102de90ea0d06512dcb2ffcc172ca406ef416fc3b3726c059e7d2d

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:
11/30/2024 8:48:55 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.11.16

File size:
278.4 KB (285,096 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:\Program Files\webconnect\bin\f365.dll

Digital Signature
Signed by:

Authority:
Symantec Corporation

Valid from:
8/4/2015 5:30:00 AM

Valid to:
10/3/2016 5:29:59 AM

Subject:
CN=Web Layers, O=Web Layers, L=Santa Monica, S=California, C=US

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
2B5CEE8A350D1CE33516994DA29EC29D

Registration
CLSID:
{5A4E3A41-FA55-4BDA-AED7-CEBE6E7BCB52}

COM registered:
Yes

File PE Metadata
Compilation timestamp:
1/11/2015 5:21:00 PM

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:
6.4975

Code size:
196 KB (200,704 bytes)

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