1.1 Bots and Botnets

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How to prevent communication from a C&C?

Block it at the firewall; identify it at the workstation with a host-based firewall or host-based IPS

C&C

Command and control; a computer controlled by an attacker which is used to send commands to systems compromised by malware and receive stolen data from a target network.

Common purposes for botnets?

DDoS attacks; renting out botnets to criminals

How to prevent botnet infections?

Keep your operating system and applications patched; keep anti-virus and anti-malware signatures updated

How do botnets get in?

Trojan horse or vulnerability in operating system or application

How to identify a botnet infection?

Use a scanner or network monitor


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