Which malware is hard to detect and remove?

What type of malware is the hardest to remove?

That's a good thing: Viruses are the only type of malware that "infects" other files. That makes them particularly hard to clean up because the malware must be executed from the legitimate program.

Which viruses are difficult to remove?

Resident Virus – Unlike direct action viruses, resident viruses get installed on the computer. It is difficult to identify the virus and it is even difficult to remove a resident virus.

What is the most difficult virus to detect?

Metamorphic viruses are one of the most difficult types of viruses to detect. Such viruses change their internal structure, which provides an effective means of evading signature detection.

Is malware difficult to remove?

Removing a computer virus or spyware can be difficult without the help of malicious software removal tools. Some computer viruses and other unwanted software reinstall themselves after the viruses and spyware are detected and removed.