Top 6 Major Activities of a Trojan Horse on an Infected Computer

Trojan Horse Major Activities Techhyme

In the realm of cybersecurity, the Trojan horse stands as one of the most insidious threats, disguising itself as a seemingly harmless program while harboring malicious intentions. Once a Trojan horse infiltrates a computer, it can unleash a cascade of harmful activities that compromise data, privacy, and system integrity.

In this article, we delve into the generally recognized activities of a Trojan horse on an infected computer, shedding light on the potential consequences and emphasizing the importance of robust cybersecurity practices.

1. Collecting Data and Sending to Command and Control Center

One of the primary objectives of a Trojan horse is to collect sensitive data from an infected computer and send it to a remote command and control center operated by cybercriminals. This stolen data can include personal information, login credentials, financial details, and more. The harvested data is often used for identity theft, fraud, or further cyberattacks.

2. Copying Files and Credential Information

Trojan horses can stealthily copy files, documents, and even entire folders from an infected computer. This stolen information can be used to gain unauthorized access to accounts, systems, or networks, enabling cybercriminals to perpetrate a wide range of malicious activities.

3. Blocking of Data

Certain types of Trojan horses, known as ransomware, have the ability to encrypt files on an infected computer, rendering them inaccessible. Cybercriminals then demand a ransom in exchange for a decryption key, effectively holding the victim’s data hostage until payment is made.

4. Altering Useful Data

Trojan horses may modify or alter files, documents, or system settings, often with the intent of causing confusion, disrupting operations, or facilitating further attacks. These alterations can lead to data corruption, unauthorized access, and compromised functionality.

5. Reducing the Performance of the Computer

Trojan horses can consume significant system resources, causing a noticeable decline in the performance of the infected computer. This degradation may manifest as slow response times, freezing, or crashes, impeding the user’s ability to effectively use their system.

6. Deleting Useful Data Files

In some cases, Trojan horses are programmed to delete specific files or entire directories from an infected computer. This destructive action can result in data loss, compromising important documents, applications, and other valuable assets.

Mitigation Strategies

To defend against Trojan horse attacks and their associated activities, consider the following cybersecurity measures:

  1. Install Comprehensive Antivirus Software: Use reputable antivirus software to detect and neutralize Trojan horse threats before they can infiltrate your system.
  2. Regularly Update Software: Keep your operating system, applications, and security software up to date to address known vulnerabilities.
  3. Exercise Caution with Downloads: Only download software and files from trusted sources, avoiding suspicious websites and email attachments.
  4. Enable Firewall Protection: Activate and configure a firewall to monitor incoming and outgoing network traffic, preventing unauthorized access.
  5. Employ Email Vigilance: Be cautious when opening email attachments or clicking on links, especially from unknown or unexpected sources.
  6. Regular Backups: Maintain regular backups of your important data to mitigate the impact of data loss in the event of a Trojan attack.


The activities of a Trojan horse on an infected computer can have far-reaching and devastating consequences, from stolen data and compromised privacy to disrupted operations and financial loss. Vigilance, awareness, and a commitment to cybersecurity best practices are essential in mitigating the risks posed by these stealthy digital intruders.

By staying informed, adopting a proactive approach to security, and implementing robust defensive measures, you can effectively protect your digital environment from the potential havoc wreaked by Trojan horse attacks.

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