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setup.exe

Software Updater

Installer Setup

This is part of the Air Installer, a download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application setup.exe by Installer Setup 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 AirInstaller Download Manager installer. The file has been seen being downloaded from download.myinternetserecurity.com.
Publisher:
Installer Setup  (signed and verified)

Product:
Software Updater

Version:
2.5.0.18

MD5:
8636ecd640abfea0ef0ed9370e5d268c

SHA-1:
af379384a25607560d91b691d27f42328881a0a6

SHA-256:
222659fab107ec4dea8bb3a1d1cd6108320b2fc4ed046069c5d098264b90a8f0

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

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:
1/7/2025 6:39:23 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Installe.Installer (M)
16.4.21.6

File size:
1 MB (1,064,632 bytes)

Product version:
2.5.0.18

Copyright:
(c) Installer Setup

Original file name:
setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

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

Digital Signature
Signed by:
Installer Setup

Authority:
VeriSign, Inc.

Valid from:
10/23/2014 10:00:00 PM

Valid to:
10/23/2016 9:59:59 PM

Subject:
CN=Installer Setup, O=Installer Setup, L=Vancouver, S=British Columbia, C=CA

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:
114A4CD0F4776DC50DF11F7D51696678

File PE Metadata
Compilation timestamp:
12/11/2014 7:35:17 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:tHZgVD4WOn4s0UAhRP8DKiPdsvMIn9f76NjOBM9:tHZgVsW7DUAcDZSxnqjcG

Entry address:
0x345CF0

Entry point:
60, BE, 00, B0, 64, 00, 8D, BE, 00, 60, DB, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89...
 
[+]

Packer / compiler:
UPX 2.90LZMA

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

http://download.myinternetserecurity.com/v1.5/click/.../?uid=sT10KIkJcp&sid=600807910

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