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atuziuninstall.exe

The application atuziuninstall.exe has been detected as adware by 4 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. This is the uninstaller utility registered in the Windows Control Panel for the program AtuZi by AtuZi. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
MD5:
ac761041f914d07e03fff4835d16e010

SHA-1:
f6808321207d74eece1ad5fc65cbfcf86983e09b

SHA-256:
66d11e808c2d34d9eed53aa4d775dcbb783bd7f28100313e123bf31ee1cbf913

Scanner detections:
4 / 68

Status:
Adware

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

Analysis date:
4/20/2024 1:22:05 AM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14423

ESET NOD32
Win32/BrowseFox
8.9710

Reason Heuristics
Adware.Yontoo.O
14.5.22.12

SUPERAntiSpyware
Adware.BrowseFox/Variant
10648

File size:
236.1 KB (241,791 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\Program Files\atuzi\atuziuninstall.exe

File PE Metadata
Compilation timestamp:
12/6/2009 1:52:01 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:YZ+11EXERkfEj7GwqOf+X1/1RWBT5As3Zm/G/Hc98:c+kcJmR1s15Ass/G/8O

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:
7.9142

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

Program Uninstaller
Program name:
AtuZi

Display publisher:
AtuZi

Display version:
2014.04.22.102505

Uninstall string:
C:\Program Files (x86)\AtuZi\AtuZiuninstall.exe


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