downloadsetup.exe

Setup

Itzhak Shternberg

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions which inject ads in the browser. The application downloadsetup.exe by Itzhak Shternberg has been detected as adware by 29 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:
2012.10.25.1739

MD5:
1c11dad6fced7f94a1a2595ff3c263b0

SHA-1:
69dd8d3768afe6c0e796d949f3cb69686c684a3c

SHA-256:
753c0d3ea07b3eef47a8a3bd44a92d1aed7cf5e89aef6b647eee5507b94091c5

Scanner detections:
29 / 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:
4/26/2024 5:30:58 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstalleRex
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.07.08

Avira AntiVirus
ADWARE/InstallRex.Gen
7.11.141.56

avast!
Win32:InstalleRex-CG [PUP]
2014.9-140917

AVG
MalSign.Skodna
2015.0.3348

Baidu Antivirus
Adware.Win32.InstalleRex
4.0.3.14917

Bkav FE
HW32.CDB
1.3.0.4959

Clam AntiVirus
Win.Trojan.742388
0.98/19047

Comodo Security
Application.Win32.Bundledz.C
18046

Dr.Web
Adware.Downware.448
9.0.1.0260

ESET NOD32
Win32/InstalleRex.C potentially unwanted application
8.7.0.302.0

F-Prot
W32/Backdoor2.HMXY
v6.4.7.1.166

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

K7 AntiVirus
Adware
13.183.13345

Kaspersky
not-a-virus:Downloader.Win32.AdLoad
14.0.0.2909

Malwarebytes
PUP.Optional.InstallRex
v2014.11.22.05

NANO AntiVirus
Riskware.Win32.Downware.ctkpjt
0.28.0.58873

nProtect
Backdoor/W32.Clack.301504
14.06.24.01

Panda Antivirus
PUP/TSUploader
14.09.17.07

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.ItzhakShternberg.N
14.9.17.19

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.14915

Sophos
PUA.InstallRex
55

SUPERAntiSpyware
Trojan.Agent/Gen-InstallMate
10353

Total Defense
Win32/Tnega.aDQSBaD
37.0.10856

Trend Micro House Call
HV_INSTALLEREX_CG0942F6.RDXN
7.2.260

VIPRE Antivirus
Trojan.Win32.Generic
28012

Zillya! Antivirus
Downloader.Adload.Win32.16891
2.0.0.1805

File size:
294.9 KB (302,016 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
Authority:
COMODO CA Limited

Valid from:
6/7/2012 9:00:00 PM

Valid to:
6/8/2013 8:59:59 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:
10/15/2012 10:02:57 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:KggX5w78W1xrLitFHIp1TP6IUIJxgSQ9JeBLlG0YnlTH/J25Dk9k9O:KgA5w7dxv6FH6l6IUhwRYnlx25B9O

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...
 
[+]

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.

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

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

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