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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, “Setup ” by Optimum Installer has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the Adknowledge Fusion installer. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from secure.oi-installer1.com.
Publisher:
SetupManager  (signed by Optimum Installer)

Product:
SetupManager.exe

Description:
Setup

Version:
3.4.7

MD5:
827961e13ec5f5115ef91d2a023879d0

SHA-1:
1aace501b2e41f78dcef72028fcffd4ad418084f

SHA-256:
53d558f04c32ad7194781084be378846fa79bcdceb0d47360fbaefbe4fa34cdb

Scanner detections:
1 / 68

Status:
Adware

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

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/24/2024 11:25:33 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Adknowledge.OptimumInstaller.Installer (M)
16.3.6.7

File size:
845.3 KB (865,576 bytes)

Product version:
3.4.7

Original file name:
Setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adknowledge Fusion

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\skype_setup.exe

Digital Signature
Signed by:
Optimum Installer

Authority:
VeriSign, Inc.

Valid from:
10/10/2012 8:00:00 PM

Valid to:
11/7/2013 6:59:59 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:
4/25/2013 5:08:53 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:TsAmEI+CuMPnKTfTOnFxPp65H0YqBx/l+ZZc8RlP0YJhfVl56LJtxyuTH8yvGL03:TsAIL9+ZG40YJhfB6Vtx7TcCGWDHXZZ/

Entry address:
0x542BF

Entry point:
E8, 07, 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, 80, E1, 00, 00, 83, C4, 14, 5D, C3, FF, 35, 24, BD, 4A, 00, E8, AC, 4C, 00, 00, 59, 85, C0, 74, 02, FF, D0, 6A, 19, E8, D7, A2, 00, 00, 6A, 01, 6A, 00, E8, 7F, E4, 00, 00, 83, C4, 0C, E9, 60, 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:
6.7276

Code size:
463 KB (474,112 bytes)

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

http://secure.oi-installer1.com/o/.../Skype_Setup.exe

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