Increasing number of malware attacks on businesses have baffled many security experts. It is rather surprising how so many companies, large and small, have fallen prey to hackers and cybercriminals, who have used different kinds of malware. Malware, short for malicious software, is a kind of program that’s designed to cause harm to networks, devices, systems, and other apps. There are distinct types of malware – trojan horse, ransomware, worms, viruses, and spyware to name a few. In this post, we are reviewing malware, includes common types of malware, how to find signs of malware, and prevention tips.
Common malware types –
- Typically attaches itself to an application.
- Designed to monitor user activity and pass information to hackers.
- Shows too many ads and popups.
- Encrypts data, devices, systems or network files, and in return, a ransom is sought.
- Programs that are designed to allow hackers remote control of networks and devices.
- Trojan Horse. Simply called trojan, this program disguises itself as a desirable program, tricking users to download it.
- Copies itself and keeps infecting other systems.
There are also other kinds of malware, like keylogger, crypto-mining malware, botnet, and rogue-ware.
Signs of malware infection
There are a few tell-a-tale signs of malware infection – browser freezing suddenly, slow system or computer performance, unwanted popups, system crashes, disk space changes, network activities that are not normal, change in browser homepage, and new programs installed without permission.
How to prevent malware attacks?
- Change all default passwords immediately.
- Remove outdated software, especially legacy software.
- Update all firmware and software regularly.
- Update operating systems.
- Use network segmentation where needed.
- Rely on antivirus & antimalware programs
- Update all browsers and plug-ins.
- Practice strong password measures.
- Recommend a password manager to employees.
- Place all networked devices behind firewalls.
It is important to understand that employees are on the forefront of preventing a malware attack. They need to have the resources, information, and details required to report an incident, or take preventive measures. It is also necessary to have a 24×7 network monitoring system, and IT environments must be scanned and tested regularly to find possible signs of malware infection. Sometimes, malware is not visible through scans, and deep scans and hiring ethical hackers may be necessary.
Being proactive with security measures is the only way to stay a step ahead of hackers. Get all employees and departments involved to prevent malware attacks.