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icreinstall_7-zip.exe

UpdateStar GmbH

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_7-zip.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 www.updatestar.com. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
UpdateStar GmbH  (signed and verified)

MD5:
a3c0e00597e53bcbede67712b18f0e5e

SHA-1:
3cfb31d849e66b6f7cf65cc18d9763c4f29ea645

SHA-256:
e05bc0c8259b799cf52f5e58be057fe40ab1b4cca08823644a7ac8b3a5802889

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:
4/19/2024 7:10:46 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.134.32

avast!
Win32:Adware-gen [Adw]
2014.9-150811

AVG
Adware InstallCore.AED
2014.0.4311

Comodo Security
ApplicUnwnt
17863

Dr.Web
Trojan.MulDrop5.10078
9.0.1.05190

ESET NOD32
Win32/Injected.F trojan
7.0.302.0

Fortinet FortiGate
Riskware/InstallCore_JE
5/14/2015

F-Prot
W32/A-89dd4083
v6.4.7.1.166

herdProtect (fuzzy)
variant of icreinstall_ikea-home-planner.exe (PUP)
2015.8.11.1

K7 AntiVirus
Unwanted-Program
13.183.13166

Malwarebytes
PUP.Optional.Installcore
v2015.05.14.03

McAfee
Artemis!BA26D4226A13
5600.6766

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

Reason Heuristics
PUP.Bundler.UpdateStarGmbH
15.5.14.3

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.15512

Sophos
PUA 'Install Core Click run software'
5.14

Trend Micro House Call
TROJ_GEN.F47V0205
7.2.223

Vba32 AntiVirus
Downware.InstallCore
3.12.26.3

VIPRE Antivirus
Adware.Win32.InstallCore.ba
26950

File size:
669 KB (685,056 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\Documents and Settings\{user}\Local settings\temp\icreinstall_7-zip.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
COMODO CA Limited

Valid from:
1/2/2013 7:00:00 AM

Valid to:
1/3/2016 6:59:59 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:
6/20/1992 5:22:17 AM

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:
7.7953

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

Code size:
37 KB (37,888 bytes)

The file icreinstall_7-zip.exe has been seen being distributed by the following URL.

http://www.updatestar.com/.../2078253

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

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