The Impact of Malware on Data Security

Malware is one of the most significant security threats faced by enterprises. In 2022/2023, the ASD reported that they responded to 143 incidents from enterprises that self-identified as critical infrastructure—an increase of 95 from the 2021/2022 period.

To contain malware, security departments need to proactively monitor networks before significant damage can occur. That said, prevention is key when it comes to malware. To prevent an attack, it’s crucial to understand what you’re protecting against.

So, here are five common types of malware you should be prepared for to keep your proprietary and confidential information safe from prying eyes:

1. Viruses
   Computer viruses require human intervention to spread. Once downloaded—often appearing as phishing emails or advertisements—the virus can proliferate throughout the network. It can modify your computer functions, delete or copy data, encrypt data for ransomware attacks, and even carry out Distributed Denial-of-Service (DDoS) attacks.
2. Worms
   Computer worms self-replicate and infect entire systems without the need for human intervention. This malware capitalises on the security vulnerabilities of the device or inserts itself through malicious files and links. Once it gains access, it will search for networked devices to attack, often going unnoticed by users by disguising itself as legitimate work files.
3. Ransomware
   From crypto-ransomware to locker ransomware and extortionware, ransomware is perhaps one of the most well-known forms of malware. It encrypts devices and files, forcing victims to pay a ransom to regain access. Having a robust backup system can help victims restore their files. However, it’s always advised to deploy advanced ransomware recovery technologies to prevent any type of malware attack.
4. Bots
   Bots are self-replicating malware that spreads by creating a network of bots—also known as a botnet. Once the device has been infected, it will only perform tasks directed by the attacker, making it a serious threat to data security. Often used in DDoS attacks, they can even send phishing emails and conduct keylogging—a method of stealing personally identifiable information (PII), such as login credentials.
5. Trojan horses
   A Trojan horse appears legitimate to users and relies on social engineering techniques to enter devices. Once it gains access to the device, malicious code is installed to propagate the attack. Trojans give their attackers backdoor access to a device to steal data, install viruses, or perform keylogging.Remote Access Trojans (RATs) enable attackers to control an already infected device and use it to infect other devices, thereby creating a botnet.

Security tips to prevent malware attacks and data loss

Preventing malware attacks entirely may not be possible. However, there are reliable methods that you can use to identify and block malware attacks, thereby protecting your network from malicious software.

1. 1. Anti-virus and anti-spyware software
      Anti-virus and anti-spyware software are designed to scan computer files to identify and remove any malware. When installing this software, it’s crucial to keep your security tools updated, audit your files for any missing data, unauthorised additions, or errors, and remove any detected malware immediately.
   2. Secure authentication methods
      Ensure your accounts are always secure by setting strong passwords that have at least eight characters, including a number, symbol, and an uppercase and lowercase letter in every password. Multi-Factor Authentication, security questions, and PINs should also be set up in addition to the password. Avoid saving any passwords on your computer or network. If you need a safe place to store your passwords, consider using a secure password manager.
   3. Keep software updated
      Software packages aren’t bulletproof against malware, which is why vendors offer patches and updates to bridge any identified vulnerabilities. It’s important to validate and install new software patches as soon as they’re available.
   4. Limit application privileges
      A hacker needs only one open door to infiltrate your company’s data and information. Limiting application privileges can significantly reduce the number of entryways into your device. Only allow features and functions that are necessary for your work.
   5. Educate your employees
      There’s no better defence than people to keep your data and information from falling into the wrong hands. By educating them about malware, its risks, and how to identify or protect against malware attacks, you stand a much better chance of keeping attackers at bay.

Beware of malware to protect your sensitive data

Malware infections can devastate enterprises by stealing data and information critical to workflows, leading to financial and reputational damage.

At Technetics Data Recovery, our team of experienced data recovery experts is ready to help you handle any data loss situation with our data recovery services in Melbourne. If you’re the victim of a malware attack, get in touch with us. We’re here to help you restore your data and information during moments of crisis.