download.exe

Ivan Kostin

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application download.exe, “Installer for QuickSet” by Ivan Kostin 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:
QuickSet  (signed by Ivan Kostin)

Product:
QuickSet

Description:
Installer for QuickSet

Version:
2013.11.20.1837

MD5:
1eb70e1e41856cbc93f6b8fb762da944

SHA-1:
e14d65a1131c55861d7683b98fa4b98193f7a211

SHA-256:
46d0b8b4a5efc5eedccb28f881907db0b7798a6c0d08c6c5e84f4efc4040503a

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:
5/10/2024 7:26:52 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Trojan.Generic.10213271
799

Agnitum Outpost
PUA.Downloader
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.01.12

Avira AntiVirus
Adware/InstallRex.bza
7.11.124.210

avast!
Win32:InstalleRex-AI [PUP]
2014.9-141127

AVG
MalSign.Generic
2015.0.3277

Bitdefender
Trojan.Generic.10213271
1.0.20.1655

Bkav FE
W32.FamVT.AntiFWK.Trojan
1.3.0.4959

Clam AntiVirus
Win.Trojan.Installerex-17
0.98/19168

Comodo Security
Application.Win32.InstalleRex.KG
17594

Dr.Web
Adware.Downware.1719
9.0.1.0331

Emsisoft Anti-Malware
Trojan.Generic.10213271
8.14.11.27.03

ESET NOD32
Win32/InstalleRex.L potentially unwanted application
8.7.0.302.0

Fortinet FortiGate
Riskware/InstalleRex
11/27/2014

F-Prot
W32/InstallRex.B.gen
v6.4.7.1.166

F-Secure
Trojan.Generic.10213271
11.2014-27-11_5

G Data
Trojan.Generic.10213271
14.11.22

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

K7 AntiVirus
Trojan
13.176.11540

Kaspersky
not-a-virus:Downloader.Win32.AdLoad
14.0.0.2882

Malwarebytes
PUP.Optional.InstalleRex
v2014.11.27.03

McAfee
PUP-FFQ!304C1765A86C
5600.6933

MicroWorld eScan
Trojan.Generic.10213271
15.0.0.993

NANO AntiVirus
Riskware.Win32.Downware.cscobj
0.28.0.57029

nProtect
Backdoor/W32.Clack.320696
14.01.10.01

Panda Antivirus
Adware/TSUploader
14.11.27.03

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.A5
11.14.14.00

Reason Heuristics
Adware.WebPick.Installer.I
14.11.27.15

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.141125

Sophos
InstallRex
4.96

SUPERAntiSpyware
Adware.InstalleRex/Variant
10212

Vba32 AntiVirus
Downware.TSU
3.12.24.3

VIPRE Antivirus
Threat.4753027
29418

Zillya! Antivirus
Downloader.Adload.Win32.16894
2.0.0.1775

File size:
304.8 KB (312,096 bytes)

Product version:
1.0.0.1

Copyright:
Copyright © 2013 QuickSet

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
8/25/2013 1:00:00 AM

Valid to:
8/26/2014 12:59:59 AM

Subject:
CN=Ivan Kostin, O=Ivan Kostin, STREET=Pobedy 33/1, L=Kyiv, S=Kyiv, PostalCode=03170, C=UA

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

Serial number:
00EB11D24CE6DDBBF752FE4DC3D683D2BF

File PE Metadata
Compilation timestamp:
3/12/2013 9:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:qrkx9uEo2S1YnQmCX492DkwNP3qpYFkXdlP5IO5/OoCVHuy6SHZ86riVZkiizrE:qrkHu6/eIo4RXdrIO5/OpVHd6Ky6rizh

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:
7.9570

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

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

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=14238278&publisher_id=423&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=42714834&external_id=0&session_id=85429668&hardware_id=99667946&installer_file_name=download

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