How Does Antivirus Software Identify Potential Viruses?

As cyber-terrorists, thieves, and hackers continue to create newer, more deadly viruses and malware that can infiltrate systems, steal data, corrupt files, and cause damage to other systems, it’s important for you to understand the way your antivirus software detects possible threats. As you’re probably aware the primary objective of the majority of antivirus programs is to detect and take out these threats before they cause harm. They accomplish this by analysing and analyzing your data, system files, and computer software.

Typically, antivirus programs employ signature-based identification to examine documents that come into your devices against the database of known virus signatures. This method looks for fingerprints and matches the program or file with the virus. It will warn you if the match has been detected. It is effective, however hackers are constantly creating new and different kinds of malware. To recognize them, antivirus software must keep their definition files up to date with the most current virus samples.

Encrypting the malware’s payload is another technique used by hackers to bypass antivirus scanners. Once a virus is encoded, it is able to bypass scanners and signatures since it’s not executable. This is usually accomplished by attaching a tiny header to the virus. This allows it to jump the counter and execute the virus on the first chance.

Antivirus software employs different methods to detect viruses, including heuristic-based detection and behavior-based detection. Heuristic-based analysis is akin to signature detection, in that it seeks out patterns and trends in the program’s behavior. With a trial and error approach Heuristic detection is able to detect viruses that are not found by the signature-based method.

Leave a Reply