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microsoft-security-essentials.exe

The application microsoft-security-essentials.exe has been detected as a potentially unwanted program by 6 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. This program installs potentially unwanted software on your PC at the same time as the software you are trying to install, without adequate consent. The file has been seen being downloaded from get.down2208group.info.
MD5:
f1e0dc08e2677f3ec0eae20601e10605

SHA-1:
2da02692da4b8df44cd92fa3ffea4c4942e871af

SHA-256:
6ccf159c27029178ee19c3d0fff842d336fcaf76456fb962768bc217c2174d05

Scanner detections:
6 / 68

Status:
Potentially unwanted

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Analysis date:
11/30/2024 8:36:55 AM UTC  (today)

Scan engine
Detection
Engine version

Emsisoft Anti-Malware
Application.Bundler.Outbrowse.BA
11.5.0.6191

ESET NOD32
Win32/OutBrowse.BM potentially unwanted application
7.0.302.0

F-Secure
Riskware.Application.Bundler.Outbrowse
5.15.21

McAfee
Program.Adware-OutBrowse.e
18.0.204.0

Norman
Application.Bundler.Outbrowse.BA
10.04.2016 15:29:17

Reason Heuristics
PUP.OutBrowse (M)
16.5.16.11

File size:
527.5 KB (540,200 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

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

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:GFeaUJh819WiV08s4AkRd5zrfzb19aZRD34T:G/1s2s4AkRdtrfPLaZRsT

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:
7.9704

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://get.down2208group.info/1418416952/get12?p=10096&d=14176&l=13577&n=1&productname=WinInstallDownloadManager&exeurl=http://mse.dlservice.microsoft.com/download/A/3/8/A38FFBF2-1122-48B4-AF60-E44F6DC28BD8/enus/.../mseinstall.exe&dynamicname=Microsoft Security Essentials&filename=microsoft-security-essentials&d1=4

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