update.exe

Adobe Flashplayer

Air Software

Warning, this is not the legitimate setup program for Adobe Flashplayer. The setup is bootstrapped by the Air Installer 'download manager' (a pay-per-install monetization download manager) that bundles unwanted software (adware, toolbars, extensions) during setup while deciving the user into thinking they are downloading the stadard installation setup from Adobe Flashplayer. The application update.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.
Publisher:
AirInstaller Inc.  (signed by Air Software)

Product:
Adobe Flashplayer

Version:
2.0.3.84

MD5:
57a091e55594a0ca53e3a9c18abe4a0b

SHA-1:
6ccc3e973b65ab6df572a055a4d888511b654152

SHA-256:
337acfc0ed3d33fe13132f0376d4b691ca7c1d2d2a22b3da1e92f87082620c2c

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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/20/2024 2:37:55 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software (M)
16.7.17.6

File size:
1.1 MB (1,112,200 bytes)

Product version:
2.0.3.84

Copyright:
(c) AirInstaller. All rights reserved.

Original file name:
AirInstaller.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

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

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
1/25/2013 12:00:00 AM

Valid to:
3/26/2015 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:
3AC786E09219DF82DA830E461D4FC39F

File PE Metadata
Compilation timestamp:
4/12/2013 9:44:06 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:R4ZCLcb1VPMfXzW/kTirKwhxLPWFjMMfjK3LTjz4Yma+qhm7Lt:R4Z5kW/lOgLssbTjz4YDhU

Entry address:
0x24B970

Entry point:
60, BE, 00, 10, 54, 00, 8D, BE, 00, 00, EC, 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, EF, 75, 09, 8B, 1E, 83, EE, FC, 11, DB, 73, E4, 31, C9, 83, E8, 03, 72, 0D, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 74, 89, C5, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, 75, 20, 41, 01, DB, 75...
 
[+]

Entropy:
7.7634

Packer / compiler:
UPX 2.90LZMA

Code size:
1 MB (1,093,632 bytes)

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

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