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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 INTERNET RISK UPDATE for 05-29-2002 ISS X-Force Internet Threat Intelligence Center www.iss.net - Click on the AlertCon logo for more information. ******************************************** ALERTCON 1 Projected: AlertCon 1 ******************************************** ALERTCON 1 - We have returned to AlertCon 1, but please be cognizant of the threat still posed by the MS SQL Worm. Vulnerabilities: The PGP Public Key Server is a freely available and open source public key server. Versions 0.9.2 and 0.9.4 are vulnerable to a buffer overflow, which is caused by improper bounds checking of remote search requests. By sending an overly long search string to a vulnerable server, a remote attacker could overflow a buffer resulting in the ability to execute arbitrary code on the system with elevated privileges or to cause the server to crash. Microsoft has released an advisory that addresses a flaw in the authentication mechanism for the debugging facility that may allow unauthorized access to the debugger. The debugger performs diagnostic and analytic functions on applications as they are running on the operating system. VIRUSES/WORMS: MS SQL Worm: We continue to observe a strong presence of this worm. An analysis confirms that there are two separate worms with distinctively different data packages actively propagating via port 1433. Once a system is compromised by using the default administrator settings in SQL Server 7.0 and 2000, it adds a temporary account to the local group administrator's list and then executes a Java Script using a third party e-mail program which sends a password file and then the victims network configuration settings to [EMAIL PROTECTED] VBS_PLEXIS.A is a nondestructive virus that infects Microsoft Word and Excel files. It uses Mail Application Programming Interface (MAPI) functions to send email messages containing a copy of PE_PLEXIS.A as attachment to all the recipients listed in the infected user's address book. ******************************************** RECOMMENDATIONS For information on the PGP vulnerability, please refer to: http://www.iss.net/security_center/static/9171.php For information on the Microsoft advisory, please refer to: http://www.microsoft.com/technet/treeview/default.asp?url=/technet/sec urity/bulletin/MS02-024.asp> For a list of current vulnerabilities, please see: https://gtoc.iss.net/vulnerabilities.php For information on the MY SQL Worm, please refer to: http://www.antivirus.com/vinfo/virusencyclo/default5.asp?VName=BAT_SQL SPIDA.B For information on the VBS_PLEXIS.A virus, please refer to: http://www.antivirus.com/vinfo/virusencyclo/default5.asp?VName=VBS_PLE XIS.A Information regarding viruses and worms please see: https://gtoc.iss.net/viruses.php ******************************************** FACTOID: It has been reported that over the last 5 days, activity associated with the SQL Worm accounts for over 56% of reported incidents as opposed to port 80 making up approximately 11% of reported attacks. ******************************************** ATTACK SIGNATURE RANKING - global IDS, midnight - midnight, previous Day, % of total ******************************************** Protocol Decode 41.50% Suspicious Activity 20.99% Denial Of Service 17.06% Unauthorized Access Attempt 16.09% Pre-Attack Probe 04.31% Back Door 00.05% ******************************************** TOP TEN ATTACK DESTINATION PORTS - global IDS, midnight - midnight, previous day, % of top ten (ports found at) http://www.neohapsis.com/neolabs/neo-ports/neo-ports.html ******************************************** 80 (http) 78.53% 25 (smtp) 04.79% 1433 (SQL) 03.97% 161 (SNMP) 03.40% 6346 (gnutella) 03.03% 69 (tftp) 01.57% 1214 (KAZAA) 01.47% 21 (FTP) 01.20% 443 (SSL) 01.05% 53 (DNS) 00.98% ******************************************** BACKGROUND, COPYRIGHT NOTICE, and DISCLAIMER ******************************************** Background. We provide this information in the spirit of PDD 63 to help security professionals wage the war against Internet threats more effectively. Information in this update derived primarily from global, real time, 24 x 7 IDS feeds, ISS X-Force R&D Team research, and professional liaison. Other sources as noted. AlertCon 1 reflects the global, malicious, determined, 24 x 7 attacks experienced by all networks. AlertCon 2 means increased vigilance/action recommended due to a specific threat or concern. AlertCon 3 means increased attacks against specific targets or vulnerabilities on a scale that is unusually high, action required. AlertCon 4 reflects an Internet emergency for a target or group of targets whose business continuity may depend on some sort of immediate, decisive action. All summaries cover 24 hours the previous workday, GMT. Monday summaries may cover some weekend activity. Copyright 2002 Internet Security Systems, Inc. Permission is granted for the redistribution of the Internet Risk electronically. It is not to be sold or edited in any way without express consent of ISS. Refer comments or questions to: [EMAIL PROTECTED] or [EMAIL PROTECTED] Disclaimer: This information is subject to change without notice. Use of this information constitutes acceptance for use in an 'as is' condition. There are no warranties with regard to this information. In no event shall the author be liable for any damages whatsoever arising out of or in connection with the use or spread of this information. Any use of this information is at the user's own risk. No other use authorized. FOIA Exemption 4. You can download the public key from MIT's PGP key server and PGP.com's key server. Carter Schoenberg Senior Analyst Internet Threat Intelligence Center 6303 Barfield Road Atlanta, Georgia 30306 United States (404) 236-4045 work (404) 281-8296 cell -----BEGIN PGP SIGNATURE----- Version: PGP 7.0 iQA/AwUBPPTrPwtw29BQsC/uEQKHHQCfRZl5rXRUPY8w9DFkK8yMtz4fa1oAn3am DBt7M+DUKHDHEHi2yXB+kd+I =dZg+ -----END PGP SIGNATURE-----
