Provided by Aanval (Snort & Syslog Intrusion Detection and Correlation Engine) www.aanval.com
--
GEN:SID | 1:250 |
Message | DDOS mstream handler to client |
Summary | The event is generated when a DDoS mstream handler responds to an mstream client. |
Impact | Severe. If the source IP is in your network, it is possibly an mstream handler. If the destination IP is in your network, it is possibly an mstream client. |
Detailed Information | The mstream DDoS uses a tiered structure of compromised hosts to coordinate and participate in a distributed denial of service attack. At the highest level, clients communicate with handlers to direct them to launch attacks. A client may contact a handler using a TCP SYN packet to destination port 15104. A listening handler would respond to this on source port 15104 with a string of ">" in the payload. |
Affected Systems | Any mstream compromised host. |
Attack Scenarios | After a host becomes an mstream handler, the client will attempt to communicate with the handler. A handler will respond to this communication. |
Ease of Attack | Simple. mstream code is freely available. |
Corrective Action | |
Additional References | CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2000-0138 |
Rule References | cve: 2000-0138 |
--
DID:336730
--
http://www.aanval.com/