Antivirus vs Antimalware
The terms describe two traditions that have largely merged. Knowing where each came from explains why products behave the way they do.
Where each came from
Antivirus grew up matching signatures of self-replicating file infectors, with a strong emphasis on known-sample databases. Antimalware appeared to handle what that model missed: adware, spyware, browser hijackers, unwanted programs, fileless scripts — threats defined by behavior rather than replication.
Where they overlap today
| Capability | Modern antivirus | Modern antimalware |
|---|---|---|
| Signature detection | Yes | Yes |
| Behavior monitoring | Yes | Yes |
| Adware and PUP focus | Partial | Strong |
| Exploit mitigation | Varies | Common |
| Second-opinion scanning | Rare | Common |
Do you need both?
One resident engine plus one on-demand scanner is the practical answer for most Windows PCs: Windows Security resident, an anti-malware scanner for second opinions — or a paid anti-malware tier resident with Windows Security in passive mode. See Malwarebytes antivirus protection.
Frequently asked questions
Can I run two antivirus programs at once?
Two full real-time engines can conflict and slow the PC. One resident engine plus an on-demand scanner avoids that.
Is a virus the same as malware?
A virus is one type of malware. See malware vs virus.
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