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startdownload.exe

WARP INSTALL

The software uses the Optimum Installer/Fusion Installer (Adknowledge) to download and install an offer stack of adware including toolbars, coupon extensions and various unwanted utilities. This installer is just a stub to present offers and download the expected software. The application startdownload.exe, “Premium Installer ” by WARP INSTALL has been detected as adware by 38 anti-malware scanners. The program is a setup application that uses the Adknowledge Fusion installer. This program installs potentially unwanted software on your PC at the same time as the software you are trying to install, without adequate consent.
Publisher:
Premium Installer   (signed by WARP INSTALL)

Product:
Premium Installer

Description:
Premium Installer

Version:
1.3.7.2

MD5:
ac5e65e03851e0378dfef88b3dedb55f

SHA-1:
2bfe77beb2b97e0c59f950040984a3291b462bed

SHA-256:
baa8480a793002c6dcfaabcf2441c93f869a345e95cea95707b6baa0d08407f2

Scanner detections:
38 / 68

Status:
Adware

Explanation:
This setup/installer bundles various adware components (toolbars, shopping extensions, utility offers).

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/26/2024 10:35:38 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Application.Bundler.OptimumInstaller.1
380

Agnitum Outpost
PUA.Downloader
7.1.1

AhnLab V3 Security
PUP/Win32.IBryte
2014.06.03

Avira AntiVirus
Adware/iBryte.A.13993
7.11.144.50

avast!
Win32:Somoto-N [PUP]
2014.9-160121

AVG
AdPlugin
2017.0.2858

Bitdefender
Gen:Variant.Application.Bundler.OptimumInstaller.1
1.0.20.105

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Trojan.Agent-736733
0.98/20543

Comodo Security
Application.Win32.IBryte.U
18125

Dr.Web
Trojan.Packed.26508
9.0.1.021

Emsisoft Anti-Malware
Gen:Variant.Application.Bundler.OptimumInstaller
8.16.01.21.07

ESET NOD32
Win32/AdWare.iBryte.X application
10.7.0.302.0

Fortinet FortiGate
Riskware/Agent
1/21/2016

F-Prot
W32/DomaIQ.G.gen
v6.4.7.1.166

F-Secure
Gen:Variant.Application.Bundler
11.2016-21-01_5

G Data
Win32.Application.PremiumInstaller
16.1.24

IKARUS anti.virus
not-a-virus:Downloader.Win32.Agent
t3scan.1.6.1.0

K7 AntiVirus
Unwanted-Program
13.176.11806

Kaspersky
not-a-virus:Downloader.Win32.Agent
14.0.0.784

Malwarebytes
PUP.Optional.OptimumInstaller.A
v2016.01.21.07

McAfee
Artemis!F97A598A296B
5600.6514

MicroWorld eScan
Gen:Variant.Application.Bundler.OptimumInstaller.1
17.0.0.63

NANO AntiVirus
Trojan.Win32.Agent.cvofrk
0.28.0.58720

Norman
Gen:Variant.Application.Bundler.OptimumInstaller.1
11.20160121

nProtect
Trojan/W32.Badur.241952
14.06.27.01

Panda Antivirus
Trj/Genetic.gen
16.01.21.07

Qihoo 360 Security
Win32/Virus.Adware.803
1.0.0.1015

Quick Heal
Adware.iBryte.DK4
1.16.14.00

Reason Heuristics
PUP.Adknowledge.WARPINSTALL.Installer (M)
16.1.21.7

Rising Antivirus
PE:Malware.iBryte!6.14B5
23.00.65.16119

Sophos
iBryte Optimum Installer
4.98

SUPERAntiSpyware
Adware.PremiumInstaller/Variant
9372

Total Defense
Win32/Tnega.XABfAXD
37.0.10891

Trend Micro House Call
TROJ_GEN.F47V0515
7.2.21

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.26.0

VIPRE Antivirus
Threat.4778314
29418

Zillya! Antivirus
Downloader.Agent.Win32.185789
2.0.0.1773

File size:
236.3 KB (241,952 bytes)

Product version:
1.3.7.2

Copyright:
Copyright (C) 2013 Premium Installer

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adknowledge Fusion

Language:
English (United States)

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

Digital Signature
Signed by:
WARP INSTALL

Authority:
VeriSign, Inc.

Valid from:
10/4/2013 8:00:00 AM

Valid to:
9/21/2014 7:59:59 AM

Subject:
CN=WARP INSTALL, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=WARP INSTALL, L=Kansas City, S=Missouri, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
52A35E3AC3B67E8CD7BB42D490658BBA

File PE Metadata
Compilation timestamp:
4/29/2014 5:00:35 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
3072:prqPloQHB1YfnfbA0Cl+gD0Un3AUoGs/JGV9jUw9Hk7Y8YiJiY+h0+v5tZpGX:pOLBSfk0TghQ/G5gmZpGX

Entry address:
0xE538

Entry point:
E8, 0F, 65, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, 80, C2, 42, 00, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, 3C, C0, 42, 00, C9, C2, 08, 00, 8B, FF, 55, 8B, EC, 51, 53, 8B, 45, 0C, 83, C0, 0C, 89, 45, FC, 64, 8B, 1D, 00, 00, 00, 00, 8B, 03, 64, A3, 00, 00, 00, 00, 8B, 45, 08, 8B, 5D, 0C, 8B, 6D, FC, 8B, 63...
 
[+]

Entropy:
6.3699

Code size:
170.5 KB (174,592 bytes)

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

http://secure.pn-installer10.com/o/.../StartDownload.exe

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