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downloadsetup.exe

Setup

Itzhak Shternberg

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions using the JustPlug.it browser framework. The application downloadsetup.exe by Itzhak Shternberg has been detected as adware by 24 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The setup program uses Web-Pick's InstalleRex download manager and installer to bundle potentially unwanted ad-supported software which includes toolbars and browser extensions through a pay-per-install monetization scheme.
Publisher:
Premium  (signed by Itzhak Shternberg)

Product:
Setup

Description:
Installer

Version:
2012.9.27.1933

MD5:
4feebc19a46ae3b9c5936b8b78c42dc7

SHA-1:
732c7b8ff5dda90444ef2590cc83b529c00ea34b

SHA-256:
c75f0825796944102c62c30e938e4a1256c4fe260a0f49b80f63babdb0d4db77

Scanner detections:
24 / 68

Status:
Adware

Explanation:
Uses the InstalleRex from WebPick Internet Holdings to install bundled add-ons including toolbars and other web browser extensions.

Analysis date:
4/25/2024 10:12:35 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.InstallMate
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.07.18

Avira AntiVirus
ADWARE/InstallRex.Gen
7.11.141.146

avast!
Win32:InstalleRex-CG [PUP]
141025-0

AVG
MalSign.Skodna
2015.0.3297

Baidu Antivirus
Adware.Win32.InstalleRex
4.0.3.14118

Bkav FE
HW32.CDB
1.3.0.4959

Comodo Security
Application.Win32.Bundledz.C
18053

Dr.Web
Adware.Downware.448
9.0.1.05190

ESET NOD32
Win32/InstallMate potentially unwanted application
7.0.302.0

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

K7 AntiVirus
Adware
13.183.13407

NANO AntiVirus
Riskware.Win32.Downware.cvbqyt
0.28.0.58873

nProtect
Backdoor/W32.Clack.301504
14.09.17.01

Panda Antivirus
PUP/TSUploader
14.11.08.12

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.ItzhakShternberg.N
14.11.8.0

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.141106

Sophos
InstallRex
4.98

SUPERAntiSpyware
Trojan.Agent/Gen-InstallMate
10251

Total Defense
Win32/Tnega.aDQSBaD
37.0.10981

Trend Micro House Call
HV_INSTALLEREX_CI05361D.RDXN
7.2.312

VIPRE Antivirus
Installerex/WebPick
28050

Zillya! Antivirus
Backdoor.Clack.Win32.181
2.0.0.1905

File size:
294.4 KB (301,504 bytes)

Product version:
1.0

Copyright:
Copyright © 2010 Premium

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Signed by:
Itzhak Shternberg

Authority:
COMODO CA Limited

Valid from:
6/7/2012 5:00:00 PM

Valid to:
6/8/2013 4:59:59 PM

Subject:
CN=Itzhak Shternberg, O=Itzhak Shternberg, STREET=Belkind 2, L=Tel Aviv, S=Israel, PostalCode=62154, C=IL

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

Serial number:
009DFDC7DD83734FFB61F158A9759A6F69

File PE Metadata
Compilation timestamp:
8/21/2012 7:07:13 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:406sehnP8zOWy66Z6jef4EVZDDdHv3CtnUviZ1RfxiRMz5A8uh36OjBe:406s2nPeDh6YjI4E3DDxr0RfxMMzi8uI

Entry address:
0x14DB

Entry point:
55, 8B, EC, 81, EC, 2C, 06, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, DC, FB, FF, FF, 89, 5D, F4, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 08, 44, 40, 00, FF, 15, 70, 30, 40, 00, 8B, F8, 8D, 45, EC, 50, FF, 15, 6C, 30, 40, 00, FF, 15, 68, 30, 40, 00, 8B, F0, F7, D6, 33, F7, FF, 15, 64, 30, 40, 00, 33, F0, 8B, 45, F0, 33, 45, EC, 68, 04, 01, 00, 00, 33, F0, 8D, 85, D4, F9, FF, FF, 50, 53, FF, 15, 60, 30, 40, 00, 85, C0, 75, 41, FF, 15, 5C, 30, 40, 00, 83, F8, 78, 75, 1A, 68, A8, 32, 40, 00, E8, 43, FB, FF, FF...
 
[+]

Entropy:
7.9595

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file downloadsetup.exe has been seen being distributed by the following URL.

http://storagenl.info/.../

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

TCP (HTTP):
Connects to r1.stylezip.info  (54.186.255.26:80)

TCP (HTTP):
Connects to c1.stylezip.info  (54.186.255.26:80)

 
http://c1.stylezip.info/?step_id=1&installer_id=13195722&publisher_id=319&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=39587166&external_id=0&session_id=79174332&hardware_id=92370054&installer_file_name=downloadsetup

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