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microsoft security essentials setup.exe

WeDownload, Ltd

The application microsoft security essentials setup.exe by WeDownload 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 Midia Downloader installer. The file has been seen being downloaded from microsoft-security-essentials.es.todownload.com.
Publisher:
WeDownload, Ltd  (signed and verified)

MD5:
10b7ce9c2e0747e3500266f3481b0f8f

SHA-1:
c52ab8b051bfb29e40b6fb8ded33c6c2800b5952

SHA-256:
4e30995bab7a6219142e49fd998de952ede53a5465127279c0b556c75d6ef54e

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 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 8:05:03 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WeDownload (M)
16.8.1.2

File size:
593.4 KB (607,616 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Midia Downloader (using Nullsoft Install System)

Common path:
C:\users\{user}\downloads\microsoft security essentials setup.exe

Digital Signature
Signed by:
WeDownload, Ltd

Authority:
DigiCert Inc

Valid from:
2/5/2013 7:00:00 PM

Valid to:
2/11/2016 7:00:00 AM

Subject:
CN="WeDownload, Ltd", O="WeDownload, Ltd", L=Nicosia, C=CY

Issuer:
CN=DigiCert Assured ID Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0320C5B8F7CE6E92D3665598826A4480

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:lwMDD4z8x0bDiuWkPDBfOkAXlgmpQ5K/dQlnrH2DDmm:ltghsSD5o1r68/dQlD4Dm

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://microsoft-security-essentials.es.todownload.com/get/file/id/.../?lp=adwords&tg=us&kw=Microsoft essential&mt=e&ad=37631525718&pl=&ds=s&gclid=CP2L_a-Sjb4CFaMcOgodxykATQ

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