Is Your Antivirus/Firewall Effective?

Antivirus and firewalls are a critical part of cyber security. However, they only play a small role in a multi layered security model.

Assessing the Power of Antivirus

Most antivirus (AV) software is reactive because it can only learn about infections after they occur. Typically only a handful of AV products will know about new malware. This is because nearly 1 million new malware variants are being released into the wild on a daily basis. Furthermore, malware writers are now using advanced techniques to constantly avoid detection.

AV software is continuously improved. However, the fundamental approach remains unchanged. These tools are still only stopping known threats. Many of the new, 1 million per day, viruses go undetected by AV software.

More worrying is hackers ability to disable your antivirus completely! The following is an excerpt from the article Antiviruses can be hijacked via legit Windows tool published by itnews.com.au. 

The attack can be executed on all versions of Windows, and is difficult to block given the malicious code can be re-injected into the targeted process after system reboots.

The researchers said most current antivirus products on the market are susceptible to the attack, including those from Avast, AVG, Avira, Bitdefender, Trend Micro, Comodo, ESET, F-Secure, Kaspersky, Malwarebytes, McAfee, Panda, Quick Heal, and Norton.

Assessing the Power of Firewalls

One traditional way of protecting I.T is to build a network firewall. However, firewalls are designed to stop hackers attempting to get in from outside. A firewall can’t stop a hacker that is already inside the network. For example, malware on advertisements can call home from the inside, rendering a firewall useless against such an attack. Malware delivered via email likewise can bypass firewall security.

Like antivirus, firewalls are necessary but not enough. Digital Force One will help your business implement a layered security approach.

 

Specialising in Small Businesses

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