GEN:SID | 1:237 |
Message | DDOS Trin00 Master to Daemon default password attempt |
Summary | This event is generated when a trinoo DDoS master host communicates with a daemon host.
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Impact | Attempted DDoS. If the listed source IP is in your network, it may be a trinoo master. If the listed destination IP is in your network, it may be a trinoo daemon.
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Detailed Information | The trinoo DDoS uses a tiered structure of compromised hosts to coordinate and participate in a distributed denial of service attack. Masters communicate with daemons to direct them to launch attacks. A master may communicate with a daemon via UDP destination port 27444 with a string of "l44adsl" in the payload. This string is the default password for the daemon.
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Affected Systems | Any trinoo compromised host.
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Attack Scenarios | A trinoo master will communicate with a daemon to direct it to launch attacks.
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Ease of Attack | Simple. trinoo code is freely available.
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Corrective Action | Perform proper forensic analysis on the suspected compromised host to discover the means of compromise.
Rebuild a confirmed compromised host.
Use a packet-filtering firewall to block inappropriate traffic to the network to prevent hosts from being compromised.
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Additional References | CERT: http://www.cert.org/incident_notes/IN-99-07.html#trinoo
Arachnids: http://www.whitehats.com/info/IDS197
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Rule References | arachnids: 197
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