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download.exe

Anton Melnikov

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 download.exe, “Installer for TopApp software” by Anton Melnikov has been detected as adware by 33 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:
TopApp software  (signed by Anton Melnikov)

Product:
TopApp software

Description:
Installer for TopApp software

Version:
2014.5.23.1127

MD5:
4b8586e7ad07a990530fff8eb2f9e5c1

SHA-1:
1680f1804e081c6b6034a1512242c758f2152a56

SHA-256:
8d6797b600e7497dc10590a90e1ea27785ae0c097c60f581849c2c4c126dc228

Scanner detections:
33 / 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:
4/24/2024 9:36:33 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Trojan.Generic.11446146
6207143

Agnitum Outpost
Trojan.AntiFW
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2015.04.05

Avira AntiVirus
TR/AntiFW.b.109
3.6.1.96

avast!
Win32:InstalleRex-BU [PUP]
2014.9-150404

AVG
Generic
2016.0.3150

Bitdefender
Trojan.Generic.11446146
1.0.20.470

Bkav FE
HW32.CDB
1.3.0.4959

Comodo Security
Application.Win32.InstalleRex.KG
21649

Dr.Web
Trojan.WebPick.2540
9.0.1.094

Emsisoft Anti-Malware
Trojan.Generic.11446146
9.0.0.4799

ESET NOD32
Win32/InstalleRex.M potentially unwanted application
9.7.0.302.0

Fortinet FortiGate
Riskware/Generic.AC.4161048
4/4/2015

F-Prot
W32/InstallRex.B
4.6.5.141

F-Secure
Trojan.Generic.11446146
5.13.68

G Data
Trojan.Generic.11446146
15.4.25

herdProtect (fuzzy)
variant of genuine_winxp.zip.exe (Adware)
2015.7.8.19

K7 AntiVirus
Unwanted-Program
13.180.12758

Kaspersky
Trojan.Win32.AntiFW
14.0.0.2243

Malwarebytes
PUP.Optional.InstalleRex
v2015.04.04.11

McAfee
PUP-FHQ
5600.6806

MicroWorld eScan
Trojan.Generic.11446146
16.0.0.282

NANO AntiVirus
Riskware.Win32.InfoLeak.cvgqot
0.30.8.659

Norman
Trojan.Generic.11446146
03.12.2014 13:20:04

nProtect
Trojan/W32.AntiFW.323840
14.09.26.01

Panda Antivirus
PUP/TSUploader
15.04.04.11

Quick Heal
Trojan.AntiFW.A5
4.15.14.00

Reason Heuristics
Adware.WebPick.Installer
15.4.4.11

Rising Antivirus
PE:Trojan.DL.Win32.AntiFW.a!1075355932
23.00.65.15402

Sophos
PUA 'InstallRex'
5.12

Vba32 AntiVirus
AdWare.Agent
3.12.26.3

VIPRE Antivirus
Threat.4150696
31208

Zillya! Antivirus
Trojan.AntiFW.Win32.215
2.0.0.1860

File size:
316.2 KB (323,744 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 TopApp software

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

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

Digital Signature
Signed by:
Anton Melnikov

Authority:
COMODO CA Limited

Valid from:
8/27/2013 3:00:00 AM

Valid to:
8/28/2014 2:59:59 AM

Subject:
CN=Anton Melnikov, O=Anton Melnikov, STREET=Borshagovskaya 117, L=Kiev, S=Kiev, PostalCode=03058, C=UA

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

Serial number:
008EFE75FFE332B06C663189A317121232

File PE Metadata
Compilation timestamp:
3/12/2013 10:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:+rYbUzkuvcBYC47l2xLnvhueEZdkKQ3+7Oj7hTOVA1HWZu:+rdkuveY3CvI5Zdkj6OEu1HSu

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 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=19861184&publisher_id=986&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=59583552&external_id=0&session_id=119167104&hardware_id=139028288&installer_file_name=download

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