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INTERNET RISK UPDATE for 06-13-2002 ISS X-Force Internet Threat Intelligence Center www.iss.net - Click on the AlertCon logo for more information. ******************************************** ALERTCON 2 Projected: AlertCon 2 ******************************************** ALERTCON 2 - We have raised the AlertCon to 2 to advise of the need to apply Microsoft patches as reflected below. VULNERABILITIES: Microsoft has published three advisories for a heap overrun in HTR, an unchecked buffer in the Remote Access Service (RAS), and two issues in SQLXML. The combination of these issues presents an excellent opportunity for mischief ranging from crashing a system to an escalation of privileges by running an attacker's choice of code. The risk for an unpatched system is deemed critical. VIRUSES/WORMS: WORM_FISHLET.A - This mass-mailing worm uses its own SMTP (Simple Mail Transfer Protocol) engine to send copies of it to all email addresses that it finds in the Microsoft (WAB) Windows Address Book. The risk rating for this worm is low and it is not deemed to be destructive. ******************************************** RECOMMENDATIONS ******************************************** ISS X-Force strongly recommends that patches be applied immediately and rates these vulnerabilities, cumulatively, as critical. Please refer to: <http://microsoft.com/technet/treeview/default.asp?url=/technet/security/bul letin/MS02-028.asp> <http://microsoft.com/technet/treeview/default.asp?url=/technet/security/bul letin/MS02-029.asp> <http://microsoft.com/technet/treeview/default.asp?url=/technet/security/bul letin/MS02-030.asp> For a list of current vulnerabilities, please see: https://gtoc.iss.net/vulnerabilities.php For information on the current Virus/Worm of the day, please refer to: <http://www.antivirus.com/vinfo/virusencyclo/default5.asp?VName=WORM_FISHLET .A> Information regarding other viruses and worms please see: https://gtoc.iss.net/viruses.php ******************************************** FACTOID: Klez and its variants continue to lead the malicious code activity measured by the leading antivirus providers. Since appearing in April, Klez.G and Klez.H have accounted for more than 80% of virus/worm activity, but we hope that number will dip as users continue to update virus definitions to combat it and other viruses and worms. ******************************************** ATTACK SIGNATURE RANKING - global IDS, midnight - midnight, previous Day, % of total ******************************************** Unauthorized Access Attempt 32.16% Protocol Decode 26.64% Denial Of Service 07.32% Pre-Attack Probe 06.15% Back Door 00.02% ******************************************** 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) 68.48% 161 (SNMP) 08.47% 25 (smtp) 06.64% 23 (telnet) 05.42% 21 (ftp) 03.12% 1433 (SQL) 03.03% 69 (tftp) 02.64% 22 (ssh) 00.86% 139 (netbios) 00.70% 53 (DNS) 00.63% ******************************************** 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. Patrick Gray Manager, X-Force Internet Threat Intelligence Center Internet Security Systems 6303 Barfield Road Atlanta, GA 30328
