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kingbrowseuninstall.exe

KingBrowse

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application kingbrowseuninstall.exe by KingBrowse 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.
Publisher:
KingBrowse  (signed and verified)

MD5:
fa023f3dba3dadd79cf0bf793d037a05

SHA-1:
274c6b2fa4bfa4f1c16bfd7c8a0cd9f8281d10fa

SHA-256:
74809eced043faceb5e54115a977f3ce4e35d58088327d5075e7dc83e15f5ac6

Scanner detections:
1 / 68

Status:
Adware

Explanation:
This is the installer/uninstaller for the Yontoo branded (kingbrowse) adware program. The main protgram is desigend to deliver advertisements to the user's web browser through injection.

Analysis date:
4/26/2024 8:16:59 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo (M)
17.3.7.9

File size:
253.8 KB (259,928 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\Program Files\kingbrowse\kingbrowseuninstall.exe

Digital Signature
Signed by:
KingBrowse

Authority:
VeriSign, Inc.

Valid from:
1/8/2014 6:00:00 PM

Valid to:
1/9/2015 5:59:59 PM

Subject:
CN=KingBrowse, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=KingBrowse, 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:
670CAB2C338090653CEA8172D5DB1E34

File PE Metadata
Compilation timestamp:
12/5/2009 4:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

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:
7.8695

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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