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tsassist.exe

The File Type Assistant

Trusted Software ApS

The application tsassist.exe, “Find software to open your files” by Trusted Software ApS has been detected as adware by 3 anti-malware scanners. It runs as a scheduled task under the Windows Task Scheduler named ProgramUpdateCheck triggered to execute each time a user logs in. This file is typically installed with the program File Type Assistant by Trusted Software which is a potentially unwanted software program. While running, it connects to the Internet address file.org on port 80 using the HTTP protocol.
Publisher:
Trusted Software ApS  (signed and verified)

Product:
The File Type Assistant

Description:
Find software to open your files

Version:
2014.3.25.0

MD5:
56c6ef894425d997e4f3db50b11a809e

SHA-1:
e4b53197028c27f573fcc33643de8bc78225a1fd

SHA-256:
eba16e62160513f12c109080b00163f7fc4391e976ab84a2d19e9b7ee6c08042

Scanner detections:
3 / 68

Status:
Adware

Analysis date:
4/27/2024 12:04:41 AM UTC  (today)

Scan engine
Detection
Engine version

Boost by Reason
Optional.TrustedSoftware.I
188838

ESET NOD32
Win32/FileTypeAssistant.A potentially unwanted application
7.0.302.0

Reason Heuristics
PUP.TrustedSoftware.I
14.8.8.1

File size:
2.7 MB (2,834,424 bytes)

Product version:
2014.3.25.0

Copyright:
(C) 2010-2014 Trusted Software ApS

File type:
Executable application (Win64 EXE)

Common path:
C:\Program Files\file type assistant\tsassist.exe

Digital Signature
Signed by:
Trusted Software ApS

Authority:
Thawte, Inc.

Valid from:
3/24/2014 8:00:00 PM

Valid to:
3/24/2016 7:59:59 PM

Subject:
CN=Trusted Software ApS, O=Trusted Software ApS, L=Holbæk, S=DK, C=DK

Serial number:
12FE568131862C85A5B239B2F3CFF137

File PE Metadata
OS bitness:
Win64

CTPH (ssdeep):
49152:3EcAUmTcfP2CkijQ9+YFSCwHOEuX3m58u4ONTxTjS6KXwRC:3EAmijQ9Ofu3m58uRS67RC

Entry point:
EB, 10, 66, 62, 3A, 43, 2B, 2B, 48, 4F, 4F, 4B, 90, E9, AC, A0, 60, 00, A1, 9F, A0, 60, 00, C1, E0, 02, A3, A3, A0, 60, 00, 52, 6A, 00, E8, 37, 72, 20, 00, 8B, D0, E8, F6, 69, 1F, 00, 5A, E8, 18, 69, 1F, 00, E8, 43, 6B, 1F, 00, 6A, 00, E8, 7C, 86, 1F, 00, 59, 68, 48, A0, 60, 00, 6A, 00, E8, 11, 72, 20, 00, A3, A7, A0, 60, 00, 6A, 00, E9, 47, 2E, 20, 00, E9, AE, 86, 1F, 00, 33, C0, A0, 91, A0, 60, 00, C3, A1, A7, A0, 60, 00, C3, 60, BB, 00, 50, B0, BC, 53, 68, AD, 0B, 00, 00, C3, B9, EC, 00, 00, 00, 0B, C9...
 
[+]

Scheduled Task
Task name:
ProgramUpdateCheck

Trigger:
Logon (Runs on logon)

Action:
tsassist.exe \chkupd


The file tsassist.exe has been discovered within the following programs.

File Type Assistant  by Trusted Software
File Type Assistant is typically bundled by various 3rd party software through modified installers of generally free open source software using the InstallIQ downloader.
www.trustedsoftware.com/utility-software/free-file-viewer.html
74% remove it
 
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The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):
Connects to file.org  (66.39.64.146:80)

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