home

downloadmanager.exe

Nadav Kashtan

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application downloadmanager.exe, “Installer for StarApp” by Nadav Kashtan has been detected as adware by 35 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 Nadav Kashtan)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.8.6.1937

MD5:
85c3f1cebe5b3b1651b206dd3597976c

SHA-1:
3b1a9fd154992e7b69c9a8c23d5ba4de7e06474e

SHA-256:
a54688087b05dbdccce08ff241e0dac5cdfc78f314fc52bb9e2779abbb17c23a

Scanner detections:
35 / 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:
4/16/2024 5:37:41 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.InstallRex.2
365

Agnitum Outpost
Trojan.XPACK
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2015.06.04

Avira AntiVirus
ADWARE/InstallRex.Gen
8.3.1.6

avast!
Win32:InstalleRex-AB [PUP]
2014.9-160204

AVG
Skodna.Bundle
2017.0.2843

Bitdefender
Gen:Variant.Application.Bundler.InstallRex.2
1.0.20.175

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Agent-43386
0.98/20550

Comodo Security
Application.Win32.InstalleRex.KG
22330

Dr.Web
Adware.Downware.1166
9.0.1.035

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.InstallRex
8.16.02.04.01

ESET NOD32
Win32/InstalleRex.J potentially unwanted application
10.7.0.302.0

Fortinet FortiGate
Riskware/InstalleRex
2/4/2016

F-Prot
W32/InstallRex.B
v6.4.6.5.141

F-Secure
Riskware.Gen:Variant.Application.Bundler
11.2016-04-02_5

G Data
Gen:Variant.Application.Bundler.InstallRex
16.2.25

IKARUS anti.virus
AdWare.Downloader.InstallRex
t3scan.1.9.5.0

K7 AntiVirus
Unwanted-Program
13.204.16131

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.712

Malwarebytes
PUP.Optional.Installex
v2016.02.04.01

McAfee
Program.PUP-FHQ
5600.6499

MicroWorld eScan
Gen:Variant.Application.Bundler.InstallRex.2
17.0.0.105

NANO AntiVirus
Riskware.Win32.Agent.crferb
0.30.24.1636

Norman
Gen:Variant.Application.Bundler.InstallRex.2
11.20160204

nProtect
Trojan/W32.AntiFW.320456
15.06.02.01

Panda Antivirus
PUP/TSUploader
16.02.04.01

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.B5
2.16.14.00

Reason Heuristics
Adware.WebPick.Installer (M)
16.2.4.13

Rising Antivirus
PE:Trojan.DL.Win32.AntiFW.a!1075355932
23.00.65.16202

Sophos
PUA 'InstallRex'
5.15

Vba32 AntiVirus
AdWare.Agent
3.12.26.4

VIPRE Antivirus
Threat.4753027
40786

Zillya! Antivirus
Adware.Agent.Win32.8739
2.0.0.2204

File size:
312.9 KB (320,448 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\downloadmanager.exe

Digital Signature
Signed by:
Nadav Kashtan

Authority:
COMODO CA Limited

Valid from:
11/4/2012 10:00:00 PM

Valid to:
11/5/2013 9:59:59 PM

Subject:
CN=Nadav Kashtan, O=Nadav Kashtan, STREET=Bizron 38, L=Tel Aviv, S=center, PostalCode=67894, C=IL

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

Serial number:
00F861471B38887DE98076AFF491B1B1B3

File PE Metadata
Compilation timestamp:
3/12/2013 5:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:2rwV6Y0JQBkQRl7174NpNUM+UHs+j9HjKD/DTMsBsJZXrlPwAtBcdt1p:2r+63yRl1uqM+gs+JHjKHTMsBwryd5

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 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)

Remove downloadmanager.exe - Powered by Reason Core Security
herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.