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setup.exe

AVG Antivirus Free

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. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from securedownload.browserstation.com.
Publisher:
Download Assistant  (signed and verified)

Product:
AVG Antivirus Free

Version:
3.0.0.154

MD5:
89019d2654caa7b5d97fcaa926f27bf6

SHA-1:
832b76bfa31377373c7db489b46abca9ed1e3017

SHA-256:
d90af918fc4937a488e65de756ef25c070ca1539e2743d9c9d563f583c4e1381

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:
5/11/2025 9:19:08 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.3.30.3

File size:
1.1 MB (1,136,352 bytes)

Product version:
3.0.0.154

Copyright:
(c) Download Assistant

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\enaqzfpt\setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
3/12/2016 12:00:00 AM

Valid to:
6/12/2017 12:59:59 AM

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:
23AA899B39C242619F149EA85DC2BF47

File PE Metadata
Compilation timestamp:
1/30/2013 2:21:56 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:7xG/IJl5DoGzzCVJYgJaNJyZiMtvAM9dHFRcC3l2i8hFbgvj9dEo/EJakNj:0wJrufXENMAocc2i8h4LXEJakNj

Entry address:
0x113BC

Entry point:
55, 8B, EC, 83, C4, A4, 53, 56, 57, 33, C0, 89, 45, C4, 89, 45, C0, 89, 45, A4, 89, 45, D0, 89, 45, C8, 89, 45, CC, 89, 45, D4, 89, 45, D8, 89, 45, EC, B8, 2C, 00, 41, 00, E8, E8, 51, FF, FF, 33, C0, 55, 68, 9E, 1A, 41, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 5A, 1A, 41, 00, 64, FF, 32, 64, 89, 22, A1, 48, 5B, 41, 00, E8, 16, D8, FF, FF, E8, 65, D3, FF, FF, 80, 3D, DC, 2A, 41, 00, 00, 74, 0C, E8, 2B, D9, FF, FF, 33, C0, E8, 80, 32, FF, FF, 8D, 55, EC, 33, C0, E8, E2, A3, FF, FF, 8B, 55, EC, B8, 50, 86...
 
[+]

Entropy:
6.9601

Developed / compiled with:
Microsoft Visual C++

Code size:
65.5 KB (67,072 bytes)

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

http://securedownload.browserstation.com/v2/click/91a98288/?affiliate_image=http://alldownloadable.com/.../AVG_logo_noWordsTransparent.png&d=http://alldownloadable.com/.../AVG_Free2015.exe&filename=AVG_Setup&key=d7f293ff5cba9fdb5cbe2337a06b712811e460629f3a2e8b2f2e6c9c8e64c88c&n=AVG Antivirus Free&product_image=http://alldownloadable.com/.../AVG_logo.png&sid=avgfree2016-UK,avg free,CH-pkg&uao=TW96aWxsYS81LjAgKFdpbmRvd3MgTlQgNi4zOyBXT1c2NCkgQXBwbGVXZWJLaXQvNTM3LjM2IChLSFRNTCwgbGlrZSBHZWNrbykgQ2hyb21lLzUwLjAuMjYzMi4wIFNhZmFyaS81MzcuMzY_&scid=2fb11674-f076-11e5-8151-0401bb46a601

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