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appcleaner3_installer.exe

UpdateStar GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application appcleaner3_installer.exe by UpdateStar GmbH has been detected as a potentially unwanted program by 2 anti-malware scanners. The program is a setup application that uses the installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from files.downloadnow.com and multiple other hosts.
Publisher:
UpdateStar GmbH  (signed and verified)

MD5:
7918ab12edfbbfdab7c9ac94bc9fc64c

SHA-1:
5e41c549a39261a691619d7c1e994683a7bf2959

SHA-256:
61e8b24fa431fd773464fbfd08f943fa184f1043d911f40cea0eaf1605b2adb2

Scanner detections:
2 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/23/2024 6:34:45 PM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.15121

Reason Heuristics
PUP.UpdateStarGmbH
15.1.21.7

File size:
272.4 KB (278,960 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore

Common path:
C:\users\{user}\downloads\appcleaner3_installer.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
COMODO CA Limited

Valid from:
1/2/2013 1:00:00 AM

Valid to:
1/3/2016 12:59:59 AM

Subject:
CN=UpdateStar GmbH, O=UpdateStar GmbH, STREET=Hauptstraße 20, L=Berlin, S=Berlin, PostalCode=10827, C=DE

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
009ED227324380B40DDE36C8D31A33831F

File PE Metadata
Compilation timestamp:
12/22/2014 1:47:49 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
6144:6FBV4kQGZJYTqw3jjO8sG18xkzS/g4UNCWZbvsBgqRL/P:6nSk5ZJYTqwvOk18C+Y4cpmgqRL/P

Entry address:
0x9E5B0

Entry point:
60, BE, 00, E0, 45, 00, 8D, BE, 00, 30, FA, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89...
 
[+]

Entropy:
7.9005

Packer / compiler:
UPX 2.90LZMA

Code size:
260 KB (266,240 bytes)

The file appcleaner3_installer.exe has been seen being distributed by the following 7 URLs.

http://files.downloadnow.com/s/software/14/31/37/.../AppCleaner3_installer.exe

http://up.bav.baidu.com/?rh=BA9A86D58C6012C9B798E2DF86DEB850&baidusign=19057019&baidurand=16548

http://www.pcwelt.de/download_file?bid=1656265

http://static.updatestar.net/dl/updatestar/.../AppCleaner3_installer.exe

http://d.computerbild.de/downloads/.../AppCleaner3_installer.exe

http://r2.computerbild.de/exec/r2r.pl?m=w-cobi;u=http://d.computerbild.de/downloads/.../AppCleaner3_installer.exe

http://static.updatestar.net/dl/updatestar/.../AppCleaner_installer.exe

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