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Microsoft_Security_Essentials_Setup.exe

Microsoft Security Essentials

Download Helper

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 Microsoft_Security_Essentials_Setup.exe by Download Helper 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 alldownloads.net.
Publisher:
Download Helper  (signed and verified)

Product:
Microsoft Security Essentials

Version:
3.0.0.73

MD5:
c472af66ec3e4b34710957ab460e3d6a

SHA-1:
3d5fde311671fa7ac25cb720635b7583a2eb763e

SHA-256:
2a2747fabbd11e36bf09150e70f5105f2a7520f534253b403b744651390b2cbc

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:
6/1/2024 7:49:14 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
17.3.11.22

File size:
788.6 KB (807,520 bytes)

Product version:
3.0.0.73

Copyright:
(c) Download Helper

Original file name:
Microsoft_Security_Essentials_Setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
English (United States)

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

Digital Signature
Signed by:
Download Helper

Authority:
VeriSign, Inc.

Valid from:
11/27/2014 7:00:00 PM

Valid to:
11/28/2015 6:59:59 PM

Subject:
CN=Download Helper, O=Download Helper, 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:
4263E777B200F4E7A16FDB1764B87576

File PE Metadata
Compilation timestamp:
1/28/2015 2:30:21 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x4D5CF

Entry point:
E8, 4E, 1A, 01, 00, E9, 89, FE, FF, FF, CC, CC, CC, CC, CC, CC, CC, 8B, 54, 24, 0C, 8B, 4C, 24, 04, 85, D2, 74, 69, 33, C0, 8A, 44, 24, 08, 84, C0, 75, 16, 81, FA, 80, 00, 00, 00, 72, 0E, 83, 3D, 40, 4F, 4A, 00, 00, 74, 05, E9, B1, 1A, 01, 00, 57, 8B, F9, 83, FA, 04, 72, 31, F7, D9, 83, E1, 03, 74, 0C, 2B, D1, 88, 07, 83, C7, 01, 83, E9, 01, 75, F6, 8B, C8, C1, E0, 08, 03, C1, 8B, C8, C1, E0, 10, 03, C1, 8B, CA, 83, E2, 03, C1, E9, 02, 74, 06, F3, AB, 85, D2, 74, 0A, 88, 07, 83, C7, 01, 83, EA, 01, 75, F6...
 
[+]

Entropy:
7.1192

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

http://alldownloads.net/us/g/.../download

Remove Microsoft_Security_Essentials_Setup.exe - Powered by Reason Core Security
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