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setup.exe

Microsoft Security Essentials

Download Assistant

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 Download Assistant 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.program-assist.com.
Publisher:
DownloadAsst_New  (signed by Download Assistant)

Product:
Microsoft Security Essentials

Version:
3.0.0.95

MD5:
5f876bc70b0df552405f890165cdbb3a

SHA-1:
7e30a68dcfb353c24071425234253df855857264

SHA-256:
4de50bb704f7b58fb09e6aa350cb294badd9874e86e4f14e2e1c636a81530e90

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 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:
11/15/2024 10:40:39 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.7.4.8

File size:
960.2 KB (983,232 bytes)

Product version:
3.0.0.95

Copyright:
(c) DownloadAsst_New

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:
Download Assistant

Authority:
Symantec Corporation

Valid from:
2/15/2015 6:00:00 PM

Valid to:
2/16/2016 5:59:59 PM

Subject:
CN=Download Assistant, O=Download Assistant, L=Victoria, S=British Columbia, C=CA

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
3784E4CAC60231ED82FD7E8E845E8CE3

File PE Metadata
Compilation timestamp:
4/28/2015 7:53:48 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:eIkNgrAo0t1v+k+fpGhL4yR/ENTODEAxIy6RhgiwqaF:pk+2JH4yM6jI0jF

Entry address:
0x126A

Entry point:
55, 8B, EC, 83, EC, 10, 53, 56, 57, 6A, 00, FF, 15, 08, 10, 49, 00, 8B, F8, 33, D2, 8B, CF, 8B, 5F, 3C, 03, DF, 2B, 05, 1C, 10, 40, 00, 89, 45, F4, 1B, D2, F7, D8, 89, 55, F8, 0F, B7, 73, 14, 83, D2, 00, F7, DA, 89, 75, F0, 52, 8B, 93, A0, 00, 00, 00, 50, 8B, 44, 1E, 24, 03, 05, 28, 10, 40, 00, 50, FF, B3, A4, 00, 00, 00, E8, 88, FD, FF, FF, 8B, 54, 1E, 28, 83, C4, 10, A1, 28, 10, 40, 00, 2B, D0, 83, FA, 01, 76, 0D, 8B, 4C, 1E, 24, 03, C8, 03, CF, E8, F2, FE, FF, FF, A1, 20, 10, 40, 00, 83, C6, 40, 03, F3...
 
[+]

Entropy:
7.0537

Developed / compiled with:
Microsoft Visual C++

Code size:
574.5 KB (588,288 bytes)

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

http://download.program-assist.com/v2/click/b8152820/?d=http://installer-assist.com/download/win-essentials.exe&key=a25b81b869a5abd17fe411b699fd3ae40111753b6bdc1b5d862110a0ae167abb&sid=Microsoft Security Essentials&uid=Microsoft Security Essentials&affiliate_image=http://download-assist.com/admin/.../microsoft security essential_i.png&product_image=http://download-assist.com/admin/.../microsoft security essential_p.png&n=Microsoft Security Essentials&filename=

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