» microsoft toolkit.exe
Overview
Analysis
File Details
Downloads (1)

microsoft toolkit.exe

Microsoft Toolkit

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 toolkit.exe by Download Assistant 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. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from download9.chromeworlds9.space.

File name:

Publisher:

Download Assistant (signed and verified)

Product:

Microsoft Toolkit

Version:

3.0.0.156

MD5:

98e55f85e04c355a783db65394f8364b

SHA-1:

73fef17010675fccb06c6adb1ff12ee7c8ad8dee

SHA-256:

36fbc4fdb8139c50762d61efc266ab80bc48f651458faa7025d9373983a4287b

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 an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:

11/3/2025 2:15:01 AM UTC (today)

Scan engine

Detection

Engine version

Reason Heuristics

PUP.Air Software.Download.Bundler (M)

16.7.4.5

File size:

1.1 MB (1,136,472 bytes)

Product version:

3.0.0.156

File type:

Executable application (Win32 EXE)

Bundler/Installer:

AirInstaller Download Manager

Language:

Language Neutral

Common path:

C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\microsoft%20toolkit.exe

Digital Signature

Signed by:

Download Assistant

Authority:

Symantec Corporation

Valid from:

5/3/2016 8:00:00 AM

Valid to:

8/2/2017 7:59:59 AM

Subject:

CN=Download Assistant, O=Download Assistant, L=Victoria, S=British Columbia, C=CA

Issuer:

CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:

088066A3A015128F544F3E16DC53BCE8

File PE Metadata

Compilation timestamp:

1/30/2013 10:21:56 PM

OS version:

5.0

OS bitness:

Win32

Subsystem:

Windows GUI

Linker version:

2.25

CTPH (ssdeep):

24576:YxG3xqKvIammfHk2q8mgseZ/cLrHQI0rHEJakr:dNALJ2q8yeZ/cLh0rHEJakr

Entry address:

0x113BC

Entry point:

55, 8B, EC, 83, C4, A4, 53, 56, 57, 33, C0, 89, 45, C4, 89, 45, C0, 89, 45, A4, 89, 45, D0, 89, 45, C8, 89, 45, CC, 89, 45, D4, 89, 45, D8, 89, 45, EC, B8, 2C, 00, 41, 00, E8, E8, 51, FF, FF, 33, C0, 55, 68, 9E, 1A, 41, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 5A, 1A, 41, 00, 64, FF, 32, 64, 89, 22, A1, 48, 5B, 41, 00, E8, 16, D8, FF, FF, E8, 65, D3, FF, FF, 80, 3D, DC, 2A, 41, 00, 00, 74, 0C, E8, 2B, D9, FF, FF, 33, C0, E8, 80, 32, FF, FF, 8D, 55, EC, 33, C0, E8, E2, A3, FF, FF, 8B, 55, EC, B8, 50, 86... 
[+]

Entropy:

6.9624

Developed / compiled with:

Microsoft Visual C++

Code size:

65.5 KB (67,072 bytes)

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

http://download9.chromeworlds9.space/v2/click/km920jtw/?affiliate_image=http://.../32x32.png&d=http://.../toolkit.exe&filename=Microsoft Toolkit&key=79f44da4f7a295cc7fbf4abc9ce2cab6808131e36c5300eeed4ad43dee3db228&n=Microsoft Toolkit&product_image=http://.../325x85.png&sid=&uid=&uao=TW96aWxsYS81LjAgKFdpbmRvd3MgTlQgNi4xOyBXT1c2NCkgQXBwbGVXZWJLaXQvNTM3LjM2IChLSFRNTCwgbGlrZSBHZWNrbykgQ2hyb21lLzUwLjAuMjY2MS4xMDIgU2FmYXJpLzUzNy4zNg__&scid=8aa52496-2a3a-11e6-86c5-0401abff7801

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