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yahoo_setup.exe

Y! Chat Messenger

Air Software

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 yahoo_setup.exe by Air Software 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 files.downloadwiz.com.
Publisher:
AirInstaller Inc.  (signed by Air Software)

Product:
Y! Chat Messenger

Version:
2.0.3.2

MD5:
4fad88aadd28e2899ac2ba5a7e72fed2

SHA-1:
8301d426c72498f7557d029ca00f26ba5c5b95b0

SHA-256:
8e577c1b614a96c5f4c6402f57e1217fcd9acd5e467201f86fa1996e4b27c3ed

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:
4/20/2024 3:08:58 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.AirSoftw.Bundler (M)
16.6.1.8

File size:
933.1 KB (955,544 bytes)

Product version:
2.0.3.2

Copyright:
(c) AirInstaller. All rights reserved.

Original file name:
AirInstallerOne.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

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

Digital Signature
Signed by:
Air Software

Authority:
VeriSign, Inc.

Valid from:
3/1/2012 12:00:00 AM

Valid to:
3/1/2013 11:59:59 PM

Subject:
CN=Air Software, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Air Software, L=Victoria, 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:
36D5AA8967E82240D5AFEC2F301B54ED

File PE Metadata
Compilation timestamp:
9/26/2012 8:02:34 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:iy8+55f1jPmg7BfmMWpCo7IN+jlbpzYeLfc0E3cBL3C+IVh607q:3BTmMWYo7IN+j/x7cQ3CNVh6J

Entry address:
0x226350

Entry point:
60, BE, 00, 20, 54, 00, 8D, BE, 00, F0, EB, 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...
 
[+]

Entropy:
7.8882

Packer / compiler:
UPX 2.90LZMA

Code size:
916 KB (937,984 bytes)

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

http://files.downloadwiz.com/.../click.php?sid=D&b=c6f0fccc&filename=Yahoo_setup

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