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webconnectuninstall.exe

Web Layers

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application webconnectuninstall.exe by Web Layers has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. This is the uninstaller utility registered in the Windows Control Panel for the program WebConnect by Web Connect.
Publisher:
Web Layers  (signed and verified)

MD5:
2698de848c8a119f6de6d88a3a1b1470

SHA-1:
cfd23d7e5a0b7dfbec2ea5a3f6d5d705563a8252

SHA-256:
9679b1f34f77a0f38edec78a3027153bc6be5ad1402c573a2c91c382afcc75f4

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:
4/26/2024 5:20:39 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.WebLayers.Installer (M)
16.2.15.15

File size:
244.5 KB (250,360 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\Program Files\webconnect\webconnectuninstall.exe

Digital Signature
Signed by:
Web Layers

Authority:
VeriSign, Inc.

Valid from:
7/31/2013 5:30:00 AM

Valid to:
8/1/2015 5:29:59 AM

Subject:
CN=Web Layers, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Web Layers, 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:
68B083249006BA50D35F50A8F44CD7D4

File PE Metadata
Compilation timestamp:
12/6/2009 4:22:01 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:KZ+11HhOuWy/1RWBT5PyyKBkkqhGwZm/G/HcxV:5wuWs1s15aJBshGp/G/8X

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.8628

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

Program Uninstaller
Program name:
WebConnect

Display publisher:
Web Connect

Display version:
2015.04.09.062245

Uninstall string:
C:\Program Files (x86)\WebConnect\WebConnectuninstall.exe


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