Malware is any software intentionally designed to cause damage to a computer, server, client, or computer network.

1. Malware
A worm is a malware type which replicates itself (without the need for
human interaction) and spreads to different computers/devices. It
doesn’trequireasoftwareprogramtobeattachedto(unlikeviruses).
WORM
A virus is a type of malware that spreads to other computers by
duplicating itself, but in order to do so, it relies on human activity, like
running the program where the virus is attached, opening a malicious
file, etc. They can also spread through script files or cross-site scripting
(XSS)vulnerabilities.
VIRUS
A Trojan type of malware has the logic of the real trojan horse. It
disguisesitselfasasafeprogram/filebutactuallyintendsattackingyour
device. Once the threat actor has stepped to your device, it can
steal/modifyfiles,monitoruseractivity,orinstallmoremalwaretoretain
itspersistence.
TROJAN
A bot is a software program that automatically performs specific
(malicious) operations and is controlled remotely by the threat actor. It
can be used in a botnet, which is a collection of computers (bots), and
withthat,thethreatactorcanperformDDoSattacks.
BOT & BOTNET
Aransomwareisamalwaretypethatspreadsasadownloadablefile,or
usuallythroughavulnerabilityinanetworkservice.Itattachesitselfina
computer, holds it captive by restricting user access, and demands the
userforaransominordertoremovetherestrictionsinthesystem.
RANSOMWARE
Spyware is a malware type that installs itself into a device, tracks user
activity (by keylogging), and steals user information. It spreads through
softwarevulnerabilitiesandhidesinlegitsoftware.
SPYWARE
Adwareisatypeofmalwarethatdelivers(unwanted)advertisementsto
the user's device, in the form of pop-up ads on a website, or other ads
displayedonasoftwareprogram.Theycanbecombinedwithspywareto
trackuseractivityorstealdata.
ADWARE
Rootkitisatypeofmalwarethatremotelyaccessesandcontrolsadevice.
The threat actor can execute files, steal information, install more
malware, and more. It spreads through software, application
vulnerabilities.
ROOTKIT
Types of
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