malware

What is malware?

Malware, short for "malicious software", refers to any software intentionally designed to harm, exploit, or otherwise compromise a device, system, or network. It can steal data, spy on users, damage files, or allow unauthorized access to systems.

Cybercriminals use malware to disrupt operations, gain financial profit, or cause reputational harm to individuals and organizations.

Types of malware

1. Viruses – Malicious code that attaches itself to clean files and spreads to other files and systems.
2. Worms – Self-replicating programs that spread across networks without user action.
3. Trojans – Disguised as legitimate software but open a backdoor for attackers.
4. Ransomware – Encrypts files and demands payment for decryption.
5. Spyware – Secretly gathers information from a device without consent.

How does malware spread?

• Phishing emails with infected attachments or links
• Malicious websites or drive-by downloads
• Removable media like infected USB drives
• Software vulnerabilities in outdated systems
• Fake apps or pirated software downloads

How to prevent malware

• Keep systems and software up to date
• Install reputable antivirus or endpoint protection software
• Avoid clicking suspicious links or downloading unknown attachments
• Use strong, unique passwords and enable MFA
• Limit user privileges to reduce the impact of infections
• Back up important data regularly to avoid data loss

How Intruder helps defend against malware

Intruder protects organizations by:

• Continuously scanning for vulnerabilities that malware exploits
• Identifying weak spots like exposed ports and misconfigurations
• Helping teams patch issues before attackers can take advantage
• Providing real-time alerts for emerging threats

Try Intruder for free with a 14-day trial and improve your malware defenses today.