Sounds like this: http://www.mail-archive.com/ibmvm@listserv.uark.edu/msg08725.html and http://vil.nai.com/vil/content/v_100019.htm <quote>
Overview - This is a trojan detection. Unlike viruses, trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include email, malicious or hacked web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc. Aliases * DDoS.Win32.Smurf (AVP) Characteristics Characteristics - This is a Denial of Service attack tool. It's used by an attacker to send a specified number of ICMP & UDP packets to a victim. </quote> -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology This message (including any attachments) contains confidential information intended for a specific individual and purpose, and its content is protected by law. If you are not the intended recipient, you should delete this message and are hereby notified that any disclosure, copying, or distribution of this transmission, or taking any action based on it, is strictly prohibited. ________________________________ From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Martin, Terry R. (CMS/CTR) (CTR) Sent: Thursday, July 10, 2008 12:18 PM To: IBMVM@LISTSERV.UARK.EDU Subject: TCPIP Hi I re-cycled my TCPIP stack and noticed the following message while it was coming up: DTCNET400W A denial-of-service attack has been detected; issue NETSTAT DOS for more information. The output from the NETSTAT DOS command was: netstat dos VM TCP/IP Netstat Level 530 Maximum Number of Half Open Connections: 258 Denial of service attacks: Attacks Elapsed Attack Attack IP Address Detected Time Duration -------- --------------------------------------- --------- --------- --------- Smurf-IC 10.17.2.5 210 0:04:46 0:04:45 Does anyone know what this means and if it is a real problem? It looks like the ATTACKS number is rising quickly. Thank You, Terry Martin Lockheed Martin - Information Technology z/OS & z/VM Systems - Performance and Tuning Cell - 443 632-4191 Work - 410 786-0386 [EMAIL PROTECTED]