Zombies in security attacks refer to computers or internet-connected devices that have been infected with malware and are controlled remotely by attackers without the owners' knowledge. These infected devices form a network called a botnet. How zombies are used in security attacks:
- Distributed Denial of Service (DDoS) attacks: Zombies are used to flood a target server or network with overwhelming traffic, causing it to slow down or become inaccessible to legitimate users. This is the most common use of zombies in attacks
- Spreading malware and spam: Zombies can send out spam emails, phishing messages, or malware to other devices, helping attackers propagate their malicious software and scams
- Mining cryptocurrency: Attackers can use the processing power of zombie devices to mine cryptocurrencies without the owners' consent
- Stealing information and spying: Zombies can monitor user activity, collect sensitive data, and even steal banking credentials or personal information
- Extortion and renting botnets: Cybercriminals may rent out their zombie botnets to other attackers who want to launch attacks or spam campaigns, generating illicit revenue
- Coordinated large-scale attacks: By controlling many zombie devices, attackers can amplify their impact, making attacks harder to detect and stop, especially when using decentralized peer-to-peer botnet models
In essence, zombies serve as unwitting participants in cyberattacks, enabling criminals to leverage vast numbers of compromised devices to disrupt services, steal data, and spread malware on a massive scale