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yahoo messenger.exe

Yahoo 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 messenger.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 dl.yesdownloads.com.
Publisher:
AirInstaller Inc.  (signed by Air Software)

Product:
Yahoo Messenger

Version:
2.0.3.98

MD5:
8209d40ac277a39425385b414fe4456a

SHA-1:
ed7074bf61b4fc0896a2c21ed855726032f96881

SHA-256:
9646c5fc152bded8add4f6f150126d43f405a95500ab95ee511f380b9ffb8382

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:
12/29/2024 6:22:26 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.AirSoftw.Bundler (M)
16.6.12.13

File size:
1.1 MB (1,125,288 bytes)

Product version:
2.0.3.98

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\yahoo messenger.exe

Digital Signature
Signed by:
Air Software

Authority:
VeriSign, Inc.

Valid from:
1/24/2013 7:00:00 PM

Valid to:
3/26/2015 7:59:59 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:
6/4/2013 12:22:07 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:ETrqpKT1U6LSINS6ejHIlgeXHAmf+FnKVVfRvPaa:EacTuPjHIlgeXcIfRvN

Entry address:
0x2543D0

Entry point:
60, BE, 00, 60, 54, 00, 8D, BE, 00, B0, 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, 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:
7.7653

Packer / compiler:
UPX 2.90LZMA

Code size:
1.1 MB (1,110,016 bytes)

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

http://dl.yesdownloads.com/.../msgr11us.exe

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