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microsoft security essentials setup.exe

WeDownload Ltd

The application microsoft security essentials setup.exe by WeDownload has been detected as a potentially unwanted program 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 NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from microsoft-security-essentials.todownload.com.
Publisher:
WeDownload Ltd  (signed and verified)

MD5:
3f4c8a1122192c2ed04ee53f9d46a96f

SHA-1:
5b7cae950406cd6b36ccabf036012e83f749e480

SHA-256:
c04caeee23ca665c8bffe66248e07a028cbfd7d4b49c2e293cf7952570b35610

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
4/25/2024 9:16:12 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WeDownoad.WeDownlo.Installer (M)
16.7.8.16

File size:
892.5 KB (913,896 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
WeDownload Ltd

Authority:
VeriSign, Inc.

Valid from:
9/15/2014 5:00:00 PM

Valid to:
9/15/2016 4:59:59 PM

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

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:
10700C06F2801F40F4324BC7CEC29CFB

File PE Metadata
Compilation timestamp:
12/5/2009 3:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:PtgKUDmyso1o5WathLcXdGznVrJy9e8Trc/25ym:PtEXo5Wa/+GZI9e8TrW+

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...
 
[+]

Entropy:
7.9613

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.todownload.com/get/file/id/.../?lp=adwords&kw=1&mt=e&ad=36775328358&pl=&ds=s&uid=14122856875cee7a1ff8a8f1b4c68834ecb8c74328&_ga=27835441.1412285688&gclid=CMDNm5f2jsECFVFgMgodFGkAbQ

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