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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 INTERNET RISK UPDATE for 05-24-2002 ISS X-Force Internet Threat Intelligence Center www.iss.net - Click on the AlertCon logo for more information. ******************************************** ALERTCON 2 Projected: AlertCon 1 ******************************************** ALERTCON 2 - We are at AlertCon to 2 to draw attention to the MS SQL Worm. AlertCon 2 means increased vigilance or action required due to focused, patterned attacks. Vulnerabilities: 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. It is reported that Cisco's IOS is vulnerable to a denial-of-service attack using ICMP Redirect messages. When flooded with ICMP redirect messages, the IOS uses up all its memory to store the new host routes. The device is then unable to perform operations that need additional memory such as receiving routing updates and accepting inbound telnet (1) connections. VIRUSES/WORMS: MS SQL Worm: At least one worm is 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] W32/Benjamin.worm: To spread, the worm requires that the Kazaa software be installed on the machine. It creates a directory called %WINDIR%\TEMP\SYS32, and changes the Kazaa settings so that remote users can download from this directory. Then it copies itself to that directory under many different names that other users may search for. The size of these files can vary since the worm pads them with garbage bytes. This method of spreading is comparable to the VBS/GWV worm. Another example of the problems associated with peer-to-peer file sharing. ******************************************** RECOMMENDATIONS For information on the Microsoft advisory, please refer to: http://www.microsoft.com/technet/treeview/default. asp?url=/technet/security/bulletin/MS02-024.asp For further details on the Cisco IOS vulnerability, please see: http://www.securiteam.com/securitynews/5OP0P0A75E. html 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/defaul t5.asp?VName=BAT_SQLSPIDA.B For information on the Benjamin worm, please refer to: http://vil.nai.com/vil/content/v_99495.htm Information regarding viruses and worms please see: https://gtoc.iss.net/viruses.php ******************************************** FACTOID: A new e-mail scam from a purported American "Special Forces Commando" in Afghanistan who needs help getting terrorist drug money out of the country is making the rounds on the Internet. Might be a good time to re-educate employees and other users about the perils of e-mail advice and solicitation. ******************************************** ATTACK SIGNATURE RANKING - global IDS, midnight - midnight, previous Day, % of total ******************************************** Suspicious Activity 61.34% Protocol Decode 23.33% Unauthorized Access Attempt 09.74% Denial Of Service 05.43% Pre-Attack Probe 01.11% Back Door 00.04% ******************************************** 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-por ts.html ******************************************** 1433 (SQL) 46.35% 80 (http) 33.95% 6346 (unassigned) 13.53% 25 (smtp) 02.84% 69 (tftp) 00.95% 21 (FTP) 00.54% 161 (SNMP) 00.51% 1214 (KAZAA) 00.47% 139 (NetBIOS) 00.44% 53 (DNS) 00.42% ******************************************** 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 Threat Update 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. Patrick Gray Manager, X-Force Internet Threat Intelligence Center Internet Security Systems 6303 Barfield Road Atlanta, GA 30328 -----BEGIN PGP SIGNATURE----- Version: PGP 7.0.4 iQA/AwUBPO5Yj5G41ROSQPncEQKI/wCgr+u+iqLYEukvBesxUcErEhCaKBoAoOGT MQD5Ac+aemn+OKD8tTo3SOUk =WlWH -----END PGP SIGNATURE-----
