redsn0w_setup.exe

SetupManager.exe

Optimum Installer

This adware bundler is distributed through Adknowledge's advertising supported software managers. The application redsn0w_setup.exe, “RedSn0w Setup ” by Optimum Installer has been detected as adware by 12 anti-malware scanners. The program is a setup application that uses the Adknowledge Fusion installer. According to AVG, this software downloads additional adware offers during setup. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from secure.oi-installer6.com.
Publisher:
SetupManager  (signed by Optimum Installer)

Product:
SetupManager.exe

Description:
RedSn0w Setup

Version:
3.4.8

MD5:
978949c0268987561c9f945f40989594

SHA-1:
acc51e295b20dd0eb82013b311492fad2e40b7ec

SHA-256:
30f154af4d1f72f1999d431d7a0fb29121682bf33875361593ce7065aa8db522

Scanner detections:
12 / 68

Status:
Adware

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

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
12/13/2018 10:38:38 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Installer-J [PUP]
2014.9-160205

AVG
Potentially harmful program Skodna.Downloader
2017.0.2842

Clam AntiVirus
WIN.Adware.Ibryte-137
0.98/19073

Dr.Web
Adware.Downware.1246
9.0.1.036

ESET NOD32
Win32/Adware.iBryte.G application
10.7.0.302.0

F-Prot
W32/Ibryte.C.gen
v6.4.6.5.141

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.705

Malwarebytes
PUP.Optional.Ibryte
v2016.02.05.11

McAfee
Adware-FOO
5600.6498

nProtect
Trojan-Clicker/W32.Agent.896296
14.06.22.01

Reason Heuristics
PUP.Adknowledge.OptimumInstaller.Installer (M)
16.2.5.23

VIPRE Antivirus
Threat.4150696
29708

File size:
888.3 KB (909,608 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}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\redsn0w_setup.exe

Digital Signature
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:
6/28/2013 10:57:46 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
24576:D1lGPEEYAlOhiu3gpBQ4bM+8Ot6eCgLxHXb7x7HV0:rGPju3gpBtobP6xHXh7HV0

Entry address:
0x59C02

Entry point:
E8, 94, F1, 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, 0D, F2, 00, 00, 83, C4, 14, 5D, C3, FF, 35, 7C, 73, 4B, 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, 0C, F5, 00, 00, 83, C4, 0C, E9, ED, F3, 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:
6.7415

Code size:
493.5 KB (505,344 bytes)

The file redsn0w_setup.exe has been seen being distributed by the following URL.

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