4 essential rules for preventing trojan horse attacks


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Malware is among the common and dangerous cybersecurity concerns for businesses. Small businesses often remain the soft target for hackers, because these companies don’t spend enough on cybersecurity. One of the common malware programs used by hackers is called trojan horse, or simply trojan. Trojans come off as legitimate software or download, and once the user has installed the file, the malware can copy, delete, modify or block data, or in some cases, affect operations and impact other devices and networks. Trojans can be used by hackers to install other malware like ransomware, or sometimes, just to spy on user activities. 

Here are basic rules for preventing trojan horse attacks

Rule 1 – 

Never ever open emails from unknown or suspicious senders. Make sure that your employees are aware of this step, and if such emails are found, these must be reported and the in-house cybersecurity team should be informed. 

Rule 2 – 

Never download programs or software, unless you are absolutely sure of the source. Sometimes, people are tricked into downloading malware, by promising that the software version is cracked and free for use. Remember, there is nothing free, as far as authentic software for business use is concerned. 

Rule 3 –

All networked devices must be placed behind firewalls. This one is an absolute must, because firewalls prevent malware attacks to a large extent and block suspicious files. Also, if your company is not using network segmentation, also called a firebreak, make sure that you do the same. 

Rule 4 – 

Use anti-spyware, antimalware, and antivirus software on all devices and products. Ensure that employees have such software installed on their personal devices, especially if they work from their homes or have access to IT resources. Remember that trojans can create backdoors, and such backdoors are hard to detect. Preventing a trojan download is the first step, and the right antimalware product will alert on the same. 

Final word

Trojans often can cause massive damage to your business, and more often than not, it takes extensive testing to find such malware. Make sure that your employees practice safe browsing and watch out for employee activities at the workplace. You may want to block sites that may contain trojans, and from time to time, rely on penetration testing and network scans to find unknown backdoors. It doesn’t cost a lot to keep trojans at bay – all you need is a proactive approach to security.