When an Intrusion Detection System (IDS) detects malicious traffic, it can take several actions based on its configuration and the severity of the threat detected. Here are some possible actions an IDS can take:
- Alerting: The IDS can generate an alert to notify the security team or system administrator of the malicious traffic. The alert can include information about the source and destination IP addresses, the type of attack detected, and the severity level.
- Blocking: The IDS can block the traffic from the source IP address or port to prevent further attacks from the same source.
- Quarantine: The IDS can quarantine the affected host or network segment to prevent the spread of the attack.
- Reconfiguration: The IDS can reconfigure the network or host to remove the vulnerability exploited by the attack.
- Termination: In extreme cases, the IDS can terminate the network connection or shut down the affected host to prevent further damage.
It’s important to note that the action an IDS takes upon detection of malicious traffic depends on its configuration and the security policies in place. The security team or system administrator should carefully review and test the IDS configuration to ensure it is effective in protecting the network while minimizing the risk of false positives or false negatives.