I assume he is using windows 2000 Server without a firewall and did not follow the advisories in MS05-039 http://www.microsoft.com/technet/security/Bulletin/MS05-039.mspx
"Firewall best practices and standard default firewall configurations can help protect networks from attacks that originate outside the enterprise perimeter. Best practices recommend that systems that are connected to the Internet have a minimal number of ports exposed." Microsoft has tested the following workarounds. While these workarounds will not correct the underlying vulnerability, they help block known attack vectors. When a workaround reduces functionality, it is identified in the following section. Note Other protocols, such as Internetwork Packet Exchange (IPX) and Sequenced Packet Exchange (SPX), could be vulnerable to this issue. If you are using vulnerable protocols such as IPX and SPX, you should block the appropriate ports for those protocols. For more information about IPX and SPX, visit the following Microsoft Web site. Note As mentioned in the Mitigating Factors section, Windows XP Service Pack 2 and Windows Server 2003 are vulnerable to this issue primarily from locally logged on users. The following workarounds are designed primarily for earlier operating system versions that are vulnerable to anonymous network-based attacks. Block TCP ports 139 and 445 at the firewall: These ports are used to initiate a connection with the affected protocol. Blocking them at the firewall, both inbound and outbound, will help prevent systems that are behind that firewall from attempts to exploit this vulnerability. We recommend that you block all unsolicited inbound communication from the Internet to help prevent attacks that may use other ports. For more information about ports, visit the following Web site. To help protect from network-based attempts to exploit this vulnerability, use a personal firewall, such as the Internet Connection Firewall, which is included with Windows XP Service Pack 1. By default, the Internet Connection Firewall feature in Windows XP Service Pack 1 helps protect your Internet connection by blocking unsolicited incoming traffic. We recommend that you block all unsolicited incoming communication from the Internet. To enable the Internet Connection Firewall feature by using the Network Setup Wizard, follow these steps: 1. Click Start, and then click Control Panel. 2. In the default Category View, click Network and Internet Connections, and then click Setup or change your home or small office network. The Internet Connection Firewall feature is enabled when you select a configuration in the Network Setup Wizard that indicates that your system is connected directly to the Internet. To configure Internet Connection Firewall manually for a connection, follow these steps: 1. Click Start, and then click Control Panel. 2. In the default Category View, click Networking and Internet Connections, and then click Network Connections. 3. Right-click the connection on which you want to enable Internet Connection Firewall, and then click Properties. 4. Click the Advanced tab. 5. Click to select the Protect my computer or network by limiting or preventing access to this computer from the Internet check box, and then click OK. Note If you want to enable certain programs and services to communicate through the firewall, click Settings on the Advanced tab, and then select the programs, the protocols, and the services that are required. Or apply the patches. Matti > Hi, > did you investigate, how this virus came into your mail server? > ============================================ > Am Mittwoch, 17. August 2005 um 00:14 schrieben Sie: >> VIRUS WARNING >> ------------- >> For the past 2 days, our server that runs IMail was bringing the rest of our >> network to >> a crawl. If we disconnected this server from the network, then the network >> would restore >> to normal. Just in case anyone else is having network problems, >> this may be the cause. Here's what we did to fix it. >> In the Windows Task Manager, look for either of two programs/processes: >> mousebm.exe >> mousesync.exe >> You will not be able to end these processes from Task Manager. You must >> first open the >> Registry Editor and search for the following folders and delete them: >> HKLM/System/ControlSet001/Services/Mousebm >> HKLM/System/ControlSet001/Services/Mousesync >> HKLM/System/ControlSet002/Services/Mousebm >> HKLM/System/ControlSet002/Services/Mousesync >> Then reboot the server. After rebooting, you will now be able >> to delete the two offending files. They are located in: >> c:\winnt\system32\mousebm.exe >> c:\winnt\system32\mousesync.exe >> If you find that the offending files re-appear in the Task >> Manager, look for the following file and delete it: >> c:\winnt\system32\i >> You will have to repeat the above steps again. >> We searched Trend Micro, Symantec, McAfee, and Google for these files, but >> none of >> these web sites had any information on them. Perhaps, this >> virus has not yet been identified by them. >> Good luck! >> --- >> [This E-mail scanned for viruses by Declude Virus] >> To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html >> List Archive: >> http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ >> Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > ============================================ > -- > Mit freundlichen Grüssen > -------------------------------------------- > Merlin Consulting > Martin Schaible > Bahnhofstrasse 27 > CH-8702 Zollikon > Phone: +41 44 391 30 00 > Fax: +41 44 391 32 49 > Mail: mailto:[EMAIL PROTECTED] > URL: http://www.merlinconsulting.ch > Support: http://support.merlinconsulting.ch > GPS: N47 20.235 E8 34.226 > -------------------------------------------- > News - Neue Produkte: > .:. NOD32 Antivirus System > .:. BlueDragon > .:. Kiwi Syslog Monitor > .:. Paessler GmbH > .:. Sawmill Loganalyzer > .:. SmarterTools > -------------------------------------------- > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ - Matti Haack - Hit Haack IT Service Gmbh Poltlbauer Weg 4, D-94036 Passau +49 851 50477-22 Fax: +49 851 50477-29 http://www.haack-it.de Dieses Dokument ist ausschliesslich fuer den Adressaten bestimmt. Jegliche Art von Reproduktion, Verbreitung, Vervielfaeltigung, Modifikation, Verteilung und/oder Publikation dieser E-Mail-Nachricht ist untersagt, soweit dies nicht ausdruecklich genehmigt wurde. Jegliche Haftung für Ansprueche, die aufgrund der Kommunikation per E-Mail begruendet werden koennten, ist ausgeschlossen, soweit der Haftungsausschluss gesetzlich zulaessig ist. -- Ausgehende E-Mail wurde auf Viren gescannt -- To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
