Hackers & Cyber Attacks: Crash Course Computer Science #32

What are Trojan Horses?

• Programs that masquerade as harmeless attachments, but actually contain malicious software, called malware.

• A pretexting technique to steal important data from a company.

• The subterfuge that the Greeks used to enter the independent city of Troy and win the war.

What is a Ramsomware?

• Is a type of malware from cryptovirology that threatens to publish the victim's data or perpetually block access to it unless a ransom is paid.

• Is a type of malicious code or software that looks legitimate but can take control of your computer.

• Is an anomaly where a program, while writing data to a buffer, overruns the buffer's boundary and overwrites adjacent memory locations

What is a Buffer overflow?

• Is a type of malware from cryptovirology that threatens to publish the victim's data or perpetually block access to it unless a ransom is paid.

• Is a type of malicious code or software that looks legitimate but can take control of your computer.

• Is an anomaly where a program, while writing data to a buffer, overruns the buffer's boundary and overwrites adjacent memory locations

Methods to combat Buffer Overflow Attacks:

• Bounds checking: always test the length of input before copying into a buffer.

• Canaries: unused space after buffers.

• Sharks: pieces of code stored in buffers that overwrite malicious coding.

What is use in the video to show and example of "Code injection"?

• SQL Query

• A Secret portal of governamental data

• A buffer of open memory

As a level of defense, some servers sanitize input, which means...

• Removing or modifying special characters before running database queries.

• Having code audited by a crowd of security-minded developers

• Cleaning thoroughly the keyboard to avoid virus infections.

What is a worm in cybersecurity?

• A program that jumps from computer to computer automatically.

• Is a type of malware that is often disguised as legitimate software

• Is a form of malware that encrypts a victim's files.

• Animals that typically have a long cylindrical tube-like body, no limbs, and no eyes.