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7-zipws_en.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 7-zipws_en.exe by UpdateStar GmbH has been detected as a potentially unwanted program by 20 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 client.updatestar.com.
Publisher:
UpdateStar GmbH  (signed and verified)

MD5:
47bfaf37e413f7444c6589b2629d1f5a

SHA-1:
06b12ad7856490baecd7719affbf3c32ab93334b

SHA-256:
8679362afe8969e39c8a67bd10dc4f154067e9b1c67b774f41efb11315df5314

Scanner detections:
20 / 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:
11/20/2024 8:20:58 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.135.150

AVG
MalSign.InstallC
2015.0.3505

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.1438

Comodo Security
ApplicUnwnt
18064

Dr.Web
Trojan.MulDrop5.10078
9.0.1.067

ESET NOD32
Win32/InstallCore.JE.gen (variant)
8.9513

Fortinet FortiGate
Riskware/InstallCore_JE
4/13/2014

K7 AntiVirus
Unwanted-Program
13.176.11684

Malwarebytes
PUP.Optional.Installcore
v2014.03.08.06

McAfee
Artemis!47BFAF37E413
5600.7197

nProtect
Adware/W32.Agent.685056
14.03.07.02

Qihoo 360 Security
Win32/Virus.Adware.94c
1.0.0.1015

Reason Heuristics
PUP.UpdateStarGmbH.K
14.3.8.18

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.14306

Sophos
Install Core Click run software
4.98

Trend Micro House Call
TROJ_GEN.F47V0306
7.2.67

Trend Micro
ADW_INSTALLCORE
10.465.13

Vba32 AntiVirus
Downware.InstallCore
3.12.24.3

VIPRE Antivirus
Adware.Win32.InstallCore.ba
27166

File size:
669 KB (685,056 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\low\content.ie5\{random}\7-zipws_en.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
COMODO CA Limited

Valid from:
1/1/2013 6:00:00 PM

Valid to:
1/2/2016 5:59:59 PM

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:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:7vptvVqpPXo+HrdkNuX3MmmJalSXGUhjvmWLVGozhj/OuP/th:7vXvV0ddkz82vJGozhj/3h

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.7952

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

The file 7-zipws_en.exe has been seen being distributed by the following URL.

http://client.updatestar.com/files/.../7-zipws_EN.exe

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