HiJackThis

HiJackThis

by Trend Micro Inc.

What is HiJackThis?

HiJackThis is software application developed by Trend Micro Inc.. It is most commonly found on computers running Windows 7 with nearly 62.34% of installations running this operating system. HiJackThis's installer is typically 1.00 GB in size and installs around 28 files. The most common release is 2.0.2 with 48.88% of all installations currently using this version.

HiJackThis is most popular in the United States with 54.83% of installations residing in this country.

HiJackThis adds 1 scheduled task to the Windows Task Scheduler launching the program at randomly scheduled times. When using a computer that is connected to the internet, HiJackThis is known to create 1 firewall exception to allow inbound and outbound connectivity.

About HiJackThis?

HijackThis is an open source enumeration tool originally created by Merijn Bellekom, and later acquired by Trend Micro. This program is designed to target browser-hijacking methods without relying on a database of known spyware. It quickly scans a user's computer and identifies browser hijacking locations, providing a detailed list of the entries found. HijackThis is primarily used for diagnosing browser hijacking issues, as its removal capabilities, if used without proper knowledge, can potentially cause significant damage to the computer. It is important to note that HijackThis does not remove or detect spyware; instead, it focuses on listing common locations where browser hijacking activity can occur, which can lead to the installation of malware on a computer.

Software Behaviors

Services:
  • steamservice.exe runs as a service named 'Steam Client Service' (SYSTEM\CurrentControlSet\Services\Steam Client Service) "Steam Client Service monitors and updates Steam content".
Firewall:
  • hijackthis.exe is added as a firewall exception for 'C:\Program Files\Trend Micro\HiJackThis\HiJackThis.exe'.
Scheduled tasks:
  • steam.exe is scheduled as a task with the class '{F5AD5BE3-8A53-416A-85DF-3F13BD2920A5}' (runs on registration).

Startup Entries

Registry entries:
  • HijackThis.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'HijackThis startup scan' and executes as C:\Program Files\Trend Micro\HijackThis\HijackThis.exe /startupscan.
  • hijackthis.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'HijackThis startup scan' and executes as C:\Program Files\Trend Micro\HijackThis\HijackThis.exe /startupscan.
  • steam.exe is loaded in the current user (HKCU) registry as an auto-starting executable named 'Steam Client Bootstrapper (buildbot_winslave04_steam_steam_rel_client_win32@winslave04)' and executes as "C:\Program Files\Steam\steam.exe".

Software Details

URL:
https://www.trendmicro.com
Support:
Installation path:
C:\Program Files\trend micro\hijackthis
Uninstaller:
MsiExec.exe /X{45A66726-69BC-466B-A7A4-12FCBA4883D7}
Size:
1.00 GB
Language:
English

HiJackThis Executable Details

Primary executable:
hijackthis.exe
Name:
HiJackThis
Path:
C:\Program Files\trend micro\hijackthis\hijackthis.exe
MD5:
ee86268e59e4b38961e7c40d16be5bb4
SHA-1:
SHA-256:
Files installed by HiJackThis
File Type Filename MD5
DLL
7e2d850c4329a834415a414088cdce1e
EXE
a78cc79e4306ac531cb591e70993835b
EXE
7d6f3e59417caa671d73faa2d665ccc4
DLL
10795821f58006b8d4b1393c4960b097
DLL
fc5af0cdf08672646342b87704799bea
DLL
29b3cc1e8ebb3317f2f7235f8b921020
DLL
ac75aca7478e3e5c7a037bc505778202
DLL
d4eaae3b315e1947f0632ce3568916fb
DLL
1a0d795e24428146ab31ad3f9e7b5646
DLL
401c1749806cca61b7bb47f9af3fd37c