home

setup.exe

7-Zip

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 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 get.downserver1.com.
Publisher:
Igor Pavlov  (signed by Air Software)

Product:
7-Zip

Description:
7z SFX

Version:
9.20

MD5:
ab6897e81cb1fe70293b38e0569d78e9

SHA-1:
ddb978b47cd6170ddd6fdc7e86d71f784be2c0f5

SHA-256:
79e44b4c7c264d3d50cd8dff9e9ff5625043197ad9150e1b0371c1f6b9a6453d

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:
5/18/2024 3:51:52 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.AirSoftw.Bundler (M)
16.3.30.9

File size:
1.1 MB (1,152,424 bytes)

Product version:
9.20

Copyright:
Copyright (c) 1999-2010 Igor Pavlov

Original file name:
7z.sfx.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:
Air Software

Authority:
Symantec Corporation

Valid from:
2/16/2015 5:00:00 PM

Valid to:
4/17/2016 4:59:59 PM

Subject:
CN=Air Software, O=Air Software, 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:
16564ACDBB7F9D84DADD0FD418C69A51

File PE Metadata
Compilation timestamp:
11/18/2010 9:27:33 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:DWvknOMEffCm8e7S89ZkM6cDwetBEjbkt+OeWclQIXwqKJn4eE5nP:DUeOMm4eAzcEMkkrkl41VhwP

Entry address:
0x1D262

Entry point:
55, 8B, EC, 6A, FF, 68, 20, 1E, 42, 00, 68, 5C, D2, 41, 00, 64, A1, 00, 00, 00, 00, 50, 64, 89, 25, 00, 00, 00, 00, 83, EC, 68, 53, 56, 57, 89, 65, E8, 33, DB, 89, 5D, FC, 6A, 02, FF, 15, 04, 11, 42, 00, 59, 83, 0D, 90, BD, 42, 00, FF, 83, 0D, 94, BD, 42, 00, FF, FF, 15, 00, 11, 42, 00, 8B, 0D, 70, 9D, 42, 00, 89, 08, FF, 15, FC, 10, 42, 00, 8B, 0D, 6C, 9D, 42, 00, 89, 08, A1, 64, 11, 42, 00, 8B, 00, A3, 8C, BD, 42, 00, E8, 1C, 01, 00, 00, 39, 1D, 20, 7A, 42, 00, 75, 0C, 68, EA, D3, 41, 00, FF, 15, 0C, 11...
 
[+]

Entropy:
6.9642

Developed / compiled with:
Microsoft Visual C++ v6.0

Code size:
126.6 KB (129,684 bytes)

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

http://get.downserver1.com/.../1425698599/1425698599?12150591353ZmNzLTM6ZzwuLi02MSVfPS0tNC4uI2s7MDE5Lx1tOisjYy88SVVIOURPIWBrZ2JmaV80WFEsLTR3QmBTch1oYGprPDMldWlrNDE

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