People have a propensity to play fast and loose with security
terminology. However, it is significant to get your malware classifications
because knowing how various types of malware spread is essential to containing
and removing them.
Adware
Just like the name, this type of malware likes to create
pop-ups and advertisements that are often appeared on web pages and free
versions of software that come up with adware. A common adware program may redirect
a user's browser searches to look-alike web pages that contain other promotional
ads.
Virus
A computer virus is a form of malware that can replicate
itself and spread to other computers but needs some user action for this to
happen. Viruses are often attached to programs executing code, when launched
and infects the unsuspecting victim. Viruses are malicious infections that can
steal information, damage the connected networks and host computers.
Worm
Worms have been sustained even longer than computer viruses.
Instead of needing user action to spread, a worm can spread between systems by
exploiting vulnerabilities.
Trojan horse
Computer worms have been replaced by Trojan horse malware
programs act as the weapon for the hackers. This type of malware pretends to be
the desirable software to trick the user into installing it.
Rootkit
Once infected into the host, this type of malware
elevates privileges of a normal user to gain administrator rights.
Ransomware
Encrypts users data and then requests a ransom before
releasing a key to decrypt the files. Usually this malware is for monetary gain
as some users will pay any amount of money to have their data back.
Spyware
Spyware is often used by people who want to check on the others’
computer activities and also monitors users’ activity. This can capture
keystrokes for things such as credit cards, passwords, web history.
Key Symptoms of Malware Infection
- Increased
or full disk storage,
- General
slowness or increased load times,
- Crashing
or Freezing,
- Strange
programs appearing such as toolbars, icons etc.,
- Email
messages sent on your behalf that you were unaware of,
- Odd
computer behavior.
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