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Microsoft_Security_Essentials_Setup.exe

Microsoft Security Essentials

Download Assistant

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 Assistant has been detected as adware by 8 anti-malware scanners. The program is a setup application that uses the AirInstaller Download Manager installer. The file has been seen being downloaded from everydownload.net. While running, it connects to the Internet address server-54-230-81-140.mia50.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Download Assistant  (signed and verified)

Product:
Microsoft Security Essentials

Version:
3.0.0.59

MD5:
183bb8de3427fdc667100dbc835ebfb4

SHA-1:
b43ede1bf1d1532da3f0d9708585de1f20427c25

SHA-256:
4b59c28e3608aa6c9861fb15ca7db65cecec37f4452daa5a620db2c3981baa7e

Scanner detections:
8 / 68

Status:
Adware

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:
12/25/2024 1:27:40 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2015.0.3266

ESET NOD32
Win32/DownloadAssistant.A potentially unwanted application
7.0.302.0

G Data
Win32.Application.DownloadAssistant
14.12.24

IKARUS anti.virus
PUA.DownloadAssistant
t3scan.1.8.5.0

Malwarebytes
PUP.Optional.DownloadAssistant
v2014.12.08.08

Qihoo 360 Security
Malware.QVM10.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.DownloadAssistant.d
14.12.8.20

VIPRE Antivirus
Threat.4782985
35418

File size:
782.1 KB (800,840 bytes)

Product version:
3.0.0.59

Copyright:
(c) Download Assistant

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}\Pictures\camera roll\plants\microsoft_security_essentials_setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
VeriSign, Inc.

Valid from:
8/12/2014 7:00:00 PM

Valid to:
8/12/2016 6:59:59 PM

Subject:
CN=Download Assistant, O=Download Assistant, 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:
6BC405E8AC962C676F54816BCC4D4311

File PE Metadata
Compilation timestamp:
11/26/2014 3:32:54 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:kX/3Q9p0jL5qO/v+DO240H6P2VJLST1OtU:Cn//vH240ZLLSZ

Entry address:
0x4C95F

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, C0, 3E, 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:
7.1117

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

http://everydownload.net/us/.../download

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to useast.gtdlrfwd.com  (104.131.2.201:80)

TCP (HTTP):
Connects to server-54-239-142-182.mia50.r.cloudfront.net  (54.239.142.182:80)

TCP (HTTP):
Connects to server-54-239-142-14.mia50.r.cloudfront.net  (54.239.142.14:80)

TCP (HTTP):
Connects to server-54-230-82-40.mia50.r.cloudfront.net  (54.230.82.40:80)

TCP (HTTP):
Connects to server-54-230-81-140.mia50.r.cloudfront.net  (54.230.81.140:80)

TCP (HTTP):
Connects to server-54-230-80-96.mia50.r.cloudfront.net  (54.230.80.96:80)

TCP (HTTP):
Connects to new-york-2.cdn77.com  (185.59.223.11:80)

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