» skype_setup.exe
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Analysis
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skype_setup.exe

SetupManager.exe

Optimum Installer

This adware bundler is distributed through Adknowledge's advertising supported software managers. The application skype_setup.exe, “Skype Setup ” by Optimum Installer has been detected as adware by 36 anti-malware scanners. The program is a setup application that uses the Adknowledge Fusion installer. Accoriding to the detections, it is a variant of Zbot (Zeus), a trojan that attempts to steal confidential information (online credentials, and banking details) from a compromised computer and send it to online criminals via a command-and-control server.

File name:

skype_setup.exe

Publisher:

SetupManager (signed by Optimum Installer)

Product:

SetupManager.exe

Description:

Skype Setup

Version:

3.4.8

MD5:

e3347a9fc5efd968357270808447ae5e

SHA-1:

6e157ed232b1fc2fe289109489fe0995c89ff868

SHA-256:

7d3f39ee8188e059a68376a26315622d19d7a7446684ae0ec94352b9271a0043

Scanner detections:

36 / 68

Status:

Adware

Explanation:

This installer bundles various adware prorgams that may include toolbars and web browser advertising injectors/extensions.

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:

4/18/2024 8:10:21 PM UTC (today)

Scan engine

Detection

Engine version

Lavasoft Ad-Aware

Application.Generic.526895

651

Agnitum Outpost

Adware.iBryte

7.1.1

AhnLab V3 Security

Adware/Win32.Agent

15.04.24

Avira AntiVirus

Adware/Agent.909545

7.11.137.232

avast!

Win32:Installer-J [PUP]

2014.9-150424

AVG

Adware Generic5.ZQX

2014.0.4311

Bitdefender

Application.Generic.526895

1.0.20.570

Bkav FE

W32.HfsAdware

1.3.0.6379

Clam AntiVirus

WIN.Adware.Ibryte-103

0.98/19168

Comodo Security

ApplicUnwnt.Win32.AdWare.iBryte.H

17953

Dr.Web

Adware.Downware.1181

9.0.1.05190

Emsisoft Anti-Malware

Gen:Variant.Adware.Graftor.79124

8.15.04.24.07

ESET NOD32

Win32/Adware.iBryte.G application

7.0.302.0

Fortinet FortiGate

Riskware/IBryte

4/24/2015

F-Prot

W32/Ibryte.C.gen

v6.4.6.5.141

F-Secure

Application.Generic.526895

11.2015-24-04_6

G Data

Win32.Adware.OptimumInst

15.4.24

herdProtect (fuzzy)

variant of update.exe (Adware)

2015.7.25.21

IKARUS anti.virus

Win32.SuspectCrc

t3scan.2.2.29

K7 AntiVirus

Unwanted-Program

13.180.12484

Kaspersky

not-a-virus:AdWare.Win32.Agent

14.0.0.2141

Malwarebytes

PUP.Optional.Ibryte

v2015.04.24.07

McAfee

Adware-FOO

5600.6785

MicroWorld eScan

Application.Generic.526895

16.0.0.342

NANO AntiVirus

Riskware.Win32.Agent.csoynf

0.28.0.60253

Norman

Agent.ASWDM

11.20150424

nProtect

Trojan-Clicker/W32.Agent.909608

14.03.18.01

Qihoo 360 Security

Malware.QVM10.Gen

1.0.0.1015

Reason Heuristics

Threat.Adknowledge.Bundler

15.4.24.15

Rising Antivirus

PE:Trojan.Win32.Rouge.d!1075354374

23.00.65.15422

Sophos

iBryte Optimum Installer

4.98

SUPERAntiSpyware

Trojan.Agent/Gen-Ibryte

9915

Total Defense

Win32/Zbot.HIE

37.0.10826

Vba32 AntiVirus

SScope.Adware.OptimusInstaller.26607

3.12.24.3

VIPRE Antivirus

Optimum Installer

27526

Zillya! Antivirus

Adware.Agent.Win32.7980

2.0.0.1776

File size:

850.8 KB (871,208 bytes)

Product version:

3.4.8

Original file name:

Setup.exe

File type:

Executable application (Win32 EXE)

Bundler/Installer:

Adknowledge Fusion

Language:

English (United States)

Common path:

C:\users\{user}\downloads\skype_setup.exe

Digital Signature

Signed by:

Optimum Installer

Authority:

VeriSign, Inc.

Valid from:

10/10/2012 5:00:00 PM

Valid to:

11/7/2013 3:59:59 PM

Subject:

CN=Optimum Installer, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Optimum Installer, 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:

7C5F27B776ADBBB7943F700066A490BF

File PE Metadata

Compilation timestamp:

5/6/2013 1:36:07 PM

OS version:

5.0

OS bitness:

Win32

Subsystem:

Windows GUI

Linker version:

9.0

CTPH (ssdeep):

24576:A+ERkNKV/nKIZPOW84Ny/+TjMFleHX5Pl1R:cyGZPOW84J8LeHXf1R

Entry address:

0x54F12

Entry point:

E8, 14, E1, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 6A, 00, FF, 75, 14, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 8D, E1, 00, 00, 83, C4, 14, 5D, C3, FF, 35, 6C, CD, 4A, 00, E8, A9, 4C, 00, 00, 59, 85, C0, 74, 02, FF, D0, 6A, 19, E8, 62, AE, 00, 00, 6A, 01, 6A, 00, E8, 8C, E4, 00, 00, 83, C4, 0C, E9, 6D, E3, 00, 00, 8B, FF, 55, 8B, EC, 8B, 45, 08, 66, 8B, 08, 40, 40, 66, 85, C9, 75, F6, 2B, 45, 08, D1, F8, 48, 5D, C3, 8B, FF, 55, 8B, EC, 8B, 55, 08, 53, 56, 57, 33, FF, 3B, D7, 74, 07, 8B, 5D, 0C, 3B... 
[+]

Entropy:

6.7288

Code size:

466.5 KB (477,696 bytes)

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

http://downloader.downloadinfo.co/download.php?id=e7879f4e498e9c19a16c07d3a2c09ebcc6581e23&z=1&p=eyJweSI6ImRpIiwicnMiOiJnb29nbGUiLCJydCI6InNlYXJjaCIsImMiOiJjYSIsIm8iOiJ3aW43IiwiYiI6ImNoMjYiLCJ1X2lkIjoiZGlfNTE4OWRlYWI0N2JkNTQuMjk0NDcwMjkiLCJwYV9pZCI6IjEiLCJzdF9pZCI6IjAiLCJzcF9pZCI6IjAwMDAtMDAwMCIsInRzIjoxMzY3OTg5OTMxLCJrdyI6InNreXBlIiwiY3UiOiJza3lwZSIsImNhIjpudWxsfQ==

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