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setup_osu.exe

OSU

INSTALLER TECHNOLOGY CO.

This installer routine uses the Babylon network to include bundled offers of potentially unwanted programs (mostly search adware) such as toolbars and browser extensions. The application setup_osu.exe, “Open Software Updater” by INSTALLER TECHNOLOGY CO has been detected as a potentially unwanted program by 7 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from installopensoftware.com.
Publisher:
Installer Technology Co  (signed by INSTALLER TECHNOLOGY CO.)

Product:
OSU

Description:
Open Software Updater

Version:
3.0.0.0

MD5:
8da172b18ebb23e93df2790f269d058d

SHA-1:
c026e905b21e0951b7d0078905b5a83390c63c87

SHA-256:
3bcc3dda45ebfbf3274028780e47f0098700cfabd0969c0be62702ffe9a7c7e8

Scanner detections:
7 / 68

Status:
Potentially unwanted

Analysis date:
4/23/2024 7:49:12 PM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.Downware.3736
9.0.1.05190

ESET NOD32
Win32/Packed.VMDetector.G potentially unwanted application
7.0.302.0

Kaspersky
not-a-virus:Downloader.Win32.Agent
15.0.0.494

Reason Heuristics
PUP.Installer.INSTALLERTECHNOLOGYCO.J
14.8.8.0

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.14711

Sophos
Installer Technology Co
4.98

VIPRE Antivirus
Threat.4786240
31208

File size:
191.6 KB (196,216 bytes)

Copyright:
Copyright Installer Technology Co. 2014

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

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

Digital Signature
Signed by:
INSTALLER TECHNOLOGY CO.

Authority:
VeriSign, Inc.

Valid from:
10/7/2013 8:00:00 PM

Valid to:
10/23/2014 7:59:59 PM

Subject:
CN=INSTALLER TECHNOLOGY CO., OU=Digital ID Class 3 - Microsoft Software Validation v2, O=INSTALLER TECHNOLOGY CO., L=Miami Beach, S=Florida, 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:
4556C69814691A6077AE1628567ACB9F

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:35 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:/oPyys5jXJ347SbXupLDfZmxFMDmyvYCRHM3jFs3ejPJgtgwjS+k:/zfQ+upvfZOylsKOrJHwjSH

Entry address:
0x323F

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 98, 27, 7A, 00, E8, 09, 2C, 00, 00, A3, E4, 26, 7A, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, DC, 79, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, E0, 1E, 7A, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 80, 7A, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.6271

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://installopensoftware.com/redirect.php

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