How cybercriminals try to combat and bypass antivirus protection
In this digital world, hackers have become masters in getting access to your confidential data. Today they have come up with several techniques to fight with antivirus software and make sure that viruses exploit the current antivirus software running in the user’s computer. These hackers dodge antivirus software by restricting database updates and software updates.
Here we have lined up specific ways in which cybercriminals bypass antivirus protection so that the user’s system is at risk;
Attempts towards code packing
Usually, the Trojan viruses and worms are found to be encrypted and packed. Cybercriminals design specific services for the purpose of encrypting and packing. Internet files that are managed through Exeref, CryptExe PolyCrypt, etc., ended up being malicious.
Therefore, to identify the encrypted and packed Trojans and viruses, antivirus software should introduce new decoding and unpacking tools to destroy hackers’ attempts.
Restricting database upgrades and antivirus updates
Most of the Trojan’s viruses vigilantly look for an antivirus program currently active on the user’s computer. These network worms will then attempt to damage the databases, block antivirus, and prevent any operation that tries to update the software.
Hence, to leave the malware behind, antivirus software has to protect itself by monitoring the databases’ reliability and concealing the procedures from worms and Trojans.
Code alteration or mutation
When spam instructions are mixed with Trojan’s code, a unique code appears through which the hackers hide the malicious software that they plan to leave in the system. When this code alteration occurs in real-time, the victim doesn’t get a chance to make arrangements, and Trojan is downloaded automatically from malicious sites. In contrast, users don’t even realize it.
Hiding the code
The companies involved in creating antivirus software immediately recognize the address of sites that have Trojan files. However, when trying to fight with antivirus scanning, their web page is improvised, so when any request is sent through an antivirus company, we can be protected by downloading a file that is non-Trojan.
There are times when some Trojan viruses opt for services that have the ability to substitute and interrupt with system functions so that the malicious files become invisible for both the antivirus software program and the user’s operating system. For example, the HacDef backdoor is a fine example of infected code that opts for such techniques.
In these types of attacks, a massive amount of the latest Trojan viruses is sent throughout within a limited time. Due to this, antivirus companies end up getting vast numbers for analysis. Through this, the hacker believes that the time it takes to scrutinize each sample will provide an opportunity for these infected codes to infiltrate the user’s device.
This is the least favorable option of cybercriminals, sending phishing emails to employees of the company. Cybercriminals make email addresses that seem to be genuine for business activities. As soon as a user clicks on any link or image given in the email, they are directed to a website that brings malware to the device with files like Microsoft Office, Adobe PDF product, and many more.
The malware then provides hackers with open access to the user’s computer, where hackers utilize basic processes and conceal themselves from antivirus software present in the computer. This leads to intense exploitation of files, confidential data, and computer infrastructure.
Although antivirus is an excellent option for identifying malware, one should not wholly depend on it for securing their systems. Today, cybercriminals are highly sophisticated. They have great expertise in combating antivirus software, leading to infected files in our devices.
Therefore, along with installing antivirus software, users should also opt for encryption of critical data that cybercriminals may try to attack, like personal items, tender documents, etc.
If the hackers attempt to enter the computer through such encryption, they won’t access your data. Moreover, update the management software so that hackers cannot identify any weaknesses in your device that they can efficiently utilize for their hacking activities.