Trojan.Win32.OffLoader – How to Delete It [Removal Guide]

What is Trojan.Win32.OffLoader?

Kaspersky or another security tool flagged Trojan.Win32.OffLoader and you want to understand what it is and how to remove it completely. Read this removal guide before taking any manual action.

Trojan.Win32.OffLoader is a Kaspersky detection for the OffLoader Trojan family, documented in Kaspersky’s threat database as Trojan-Downloader.Win32.OffLoader.gen. The OffLoader name describes its primary function: it is a loader and downloader Trojan designed to download and load additional malicious payloads onto infected devices after establishing initial access. This makes it a first-stage threat: OffLoader itself may not perform the most damaging malicious actions directly, but its purpose is to get additional malware onto the device – ransomware, credential stealers, RATs, or banking Trojans – in the second stage. The Gen suffix in the Kaspersky classification indicates a generic detection within the OffLoader family rather than a single exact variant, meaning the detection covers a cluster of related loader components. Because OffLoader is a loader family, finding and removing only the initially detected file is insufficient: any second-stage payloads that OffLoader already downloaded and installed must also be identified and removed in the same cleanup pass.

How Did I Get Trojan.Win32.OffLoader?

• Cracked software or pirated application installers – A consistently documented delivery route for loader Trojans: cracked applications and unofficial repacks embed OffLoader in the installer as the initial access component, which then downloads the actual final payload.
• Removable media and shared drives in some variants – Kaspersky’s threat documentation specifically notes that some OffLoader variants spread through removable media by copying themselves to USB drives and exploiting autorun features, allowing lateral movement in environments where drives are shared between computers.
• Malicious email attachments – A document or archive from a phishing email executes the OffLoader dropper when opened, which then establishes persistence and downloads the second-stage payload.
• Software bundling with unofficial free downloads – A free program from a third-party download site installs OffLoader as a bundled addition through software bundling.

What Does Trojan.Win32.OffLoader Do?

• Downloads and installs additional malware payloads – The primary documented function: OffLoader contacts attacker-controlled infrastructure after installation and downloads a second-stage payload – which may be a credential stealer, ransomware, a banking Trojan, or a RAT – onto the infected device.
• May spread to connected removable media – Kaspersky specifically documents the ability of OffLoader variants to copy themselves to USB drives and removable storage, enabling spread to additional devices connected to the infected machine.
• Establishes persistence to remain active through reboots – OffLoader adds persistence entries to survive system restarts, ensuring the download connection remains active and any downloaded payloads also reload after reboot.
• Modifies system settings to facilitate payload execution – As a loader, OffLoader may disable security features, modify firewall settings, or add exclusions to allow the downloaded second-stage payload to run without triggering security alerts.

How to Delete Trojan.Win32.OffLoader

• Quarantine immediately and do not restore the file – Note the full file path from Kaspersky’s alert before proceeding.
• Assume a second-stage payload is already present – OffLoader’s purpose is to download additional malware. Run a full system scan with Kaspersky immediately after quarantine to identify any second-stage payloads that were already downloaded and installed before the initial detection.
• Check installed programs sorted by install date – Look for anything installed on the same date as or after the estimated OffLoader infection date and uninstall it.
• Check Task Scheduler and startup entries – Open taskschd.msc and the startup entries in Task Manager. Delete any task associated with the OffLoader file path or an unfamiliar executable installed during the same period.
• Check all connected removable media – Scan any USB drives that were connected to the infected device during the infection period with a dedicated anti-malware tool before plugging them into other computers.
• Run a second-opinion scan – Use SpyHunter or Malwarebytes to catch any second-stage payload components that Kaspersky may not have flagged alongside the initial OffLoader detection.

Follow the complete removal guide below this article for the full step-by-step process.

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

More Posts - Website

Follow Me:

---

Preparation before removing Trojan.Win32.OffLoader.

Before starting the actual removal process, we recommend that you do the following preparation steps.

• Make sure you have these instructions always open and in front of your eyes.
• Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
• Be patient as this could take a while.

• Scan for Malware
• Fix Registries
• Remove Virus Files

Step 1: Scan for Trojan.Win32.OffLoader with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.

Download

Malware Removal Tool

---

It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.

---

2. After you have installed SpyHunter, wait for it to update automatically.

---

3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

---

4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

If any threats have been removed, it is highly recommended to restart your PC.

Step 2: Clean any registries, created by Trojan.Win32.OffLoader on your computer.

The usually targeted registries of Windows machines are the following:

• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by Trojan.Win32.OffLoader there. This can happen by following the steps underneath:

---

1. Open the Run Window again, type "regedit" and click OK.

---

2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.

---

3. You can remove the value of the virus by right-clicking on it and removing it. Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

Step 3: Find virus files created by Trojan.Win32.OffLoader on your PC.

1.For Windows 8, 8.1 and 10.

For Newer Windows Operating Systems

1: On your keyboard press  + R and write explorer.exe in the Run text box and then click on the Ok button.

2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.

3: Navigate to the search box in the top-right of your PC's screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be "fileextension:exe". After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:

N.B. We recommend to wait for the green loading bar in the navigation box to fill up in case the PC is looking for the file and hasn't found it yet.

2.For Windows XP, Vista, and 7.

For Older Windows Operating Systems

In older Windows OS's the conventional approach should be the effective one:

1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.

2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.

3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.

Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.

Trojan.Win32.OffLoader FAQ

What Does Trojan.Win32.OffLoader Trojan Do?

The Trojan.Win32.OffLoader Trojan is a malicious computer program designed to disrupt, damage, or gain unauthorized access to a computer system. It can be used to steal sensitive data, gain control over a system, or launch other malicious activities.

Can Trojans Steal Passwords?

Yes, Trojans, like Trojan.Win32.OffLoader, can steal passwords. These malicious programs are designed to gain access to a user's computer, spy on victims and steal sensitive information such as banking details and passwords.

Can Trojan.Win32.OffLoader Trojan Hide Itself?

Yes, it can. A Trojan can use various techniques to mask itself, including rootkits, encryption, and obfuscation, to hide from security scanners and evade detection.

Can a Trojan be Removed by Factory Reset?

Yes, a Trojan can be removed by factory resetting your device. This is because it will restore the device to its original state, eliminating any malicious software that may have been installed. Bear in mind that there are more sophisticated Trojans that leave backdoors and reinfect even after a factory reset.

Can Trojan.Win32.OffLoader Trojan Infect WiFi?

Yes, it is possible for a Trojan to infect WiFi networks. When a user connects to the infected network, the Trojan can spread to other connected devices and can access sensitive information on the network.

Can Trojans Be Deleted?

Yes, Trojans can be deleted. This is typically done by running a powerful anti-virus or anti-malware program that is designed to detect and remove malicious files. In some cases, manual deletion of the Trojan may also be necessary.

Can Trojans Steal Files?

Yes, Trojans can steal files if they are installed on a computer. This is done by allowing the malware author or user to gain access to the computer and then steal the files stored on it.

Which Anti-Malware Can Remove Trojans?

Anti-malware programs such as SpyHunter are capable of scanning for and removing Trojans from your computer. It is important to keep your anti-malware up to date and regularly scan your system for any malicious software.

Can Trojans Infect USB?

Yes, Trojans can infect USB devices. USB Trojans typically spread through malicious files downloaded from the internet or shared via email, allowing the hacker to gain access to a user's confidential data.

About the Trojan.Win32.OffLoader Research

The content we publish on SensorsTechForum.com, this Trojan.Win32.OffLoader how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific trojan problem.

How did we conduct the research on Trojan.Win32.OffLoader?

Please note that our research is based on an independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware definitions, including the various types of trojans (backdoor, downloader, infostealer, ransom, etc.)

Furthermore, the research behind the Trojan.Win32.OffLoader threat is backed with VirusTotal.

To better understand the threat posed by trojans, please refer to the following articles which provide knowledgeable details.