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TSULoader.exe

Daniel Hareuveni

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 TSULoader.exe, “Installer for StarApp” by Daniel Hareuveni has been detected as adware by 19 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:
StarApp  (signed by Daniel Hareuveni)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.7.18.1914

MD5:
2428111519b3549eaa2387fb78182dda

SHA-1:
a1f14e66c18599f0c71acad91ac40c7a10573b8f

SHA-256:
2be4f844db93adc59f8a8cd382f846d2e98f89cdc9fbba96e9c5f99cc877063e

Scanner detections:
19 / 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:
12/25/2024 12:58:22 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
BDS/Clack.rba
7.11.142.168

Comodo Security
Application.Win32.InstalleRex.KG
18082

Fortinet FortiGate
Riskware/InstalleRex
4/13/2014

G Data
Win32.Application.InstalleRex
14.4.24

K7 AntiVirus
Unwanted-Program
13.176.11721

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.4025

Malwarebytes
PUP.Optional.Installex
v2014.04.13.02

McAfee
RDN/Generic PUP.x!bk3
5600.7162

NANO AntiVirus
Riskware.Win32.Agent.credyg
0.28.0.59048

Panda Antivirus
PUP/TSUploader
14.04.13.02

Qihoo 360 Security
HEUR/Malware.QVM20.Gen
1.0.0.1015

Quick Heal
AdWare.Agent.aeph (Not a Virus)
4.14.12.00

Reason Heuristics
Adware.WebPick.Installer.J
14.4.13.2

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.14411

Sophos
InstallRex
4.98

SUPERAntiSpyware
PUP.InstallRex/Variant
10669

Trend Micro House Call
ADW_EMOTICONS
7.2.103

Trend Micro
ADW_EMOTICONS
10.465.13

Vba32 AntiVirus
Downloader.AdLoad
3.12.26.0

File size:
291.7 KB (298,728 bytes)

Product version:
1.0.0.1

Copyright:
Copyright © 2012 StarApp

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Signed by:
Daniel Hareuveni

Authority:
COMODO CA Limited

Valid from:
4/9/2013 8:00:00 PM

Valid to:
4/9/2016 7:59:59 PM

Subject:
CN=Daniel Hareuveni, O=Daniel Hareuveni, STREET=Yair Rozenblum 15, L=Tel aviv, S=Israel, PostalCode=6958301, C=IL

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

Serial number:
4BE4020A80B8E6DDE45C00A0AB847E8B

File PE Metadata
Compilation timestamp:
3/12/2013 4:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:trkZ6Y0JQBkQRl7174NpNUM+UHs+e+XcVdoraFMhxpzNvio3l0ZpKyrxDe:trkZ63yRl1uqM+gs+e+Te2bp5a2le48c

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:
7.9572

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

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

http://app1.skype.w-src.com/update/.../Setup-se.exe

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=3896976&publisher_id=896&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=11690928&external_id=0&session_id=23381856&hardware_id=27278832&installer_file_name=TSULoader

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