what is string virus?

A string virus is a type of computer virus that attaches itself to the end of executable files, altering their behavior when the files are run. It spreads by appending its code to other files, which can lead to widespread infection as users execute those files. String viruses are often less complex than other types of malware but can be effective in propagating and causing damage to systems. They can corrupt or delete files, disrupt system performance, and pose security risks.