TO UNSUBSCRIBE: email "unsubscribe issforum" in the body of your message to [EMAIL PROTECTED] Contact [EMAIL PROTECTED] for help with any problems! ---------------------------------------------------------------------------- -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Copyright 2001 Internet Security Systems (trademark) THE POWER TO PROTECT INTERNET THREAT & SOLUTIONS UPDATE for September 25th - 27th, 2001 ISS X-Force Special Operations Group - -------------------------------------- CURRENT THREAT ASSESSMENT & THREAT FORECAST - -------------------------------------- AlertCon 2 Today, September 25th, 2001 AlertCon 2 Projected for September 26th - 27th, 2001 Today's Focus: Antivirus updates, advisories ************* - - We remain at AlertCon 2 (increased vigilance) for today and we're projecting AlertCon 2 for the next two days. - - The discovery yesterday of a destructive virus has replaced the Nimda Worm as the "cause du jour". - - The virus W32.Vote.a@mm also known as TROJ_VOTE.A is currently spreading in the wild. - -- This destructive, mass-mailing Trojan was created using Visual Basic 5. - -- It propagates via Microsoft Outlook by sending emails to all addresses listed in an infected user's address book. - -- It arrives in an email with the Subject: Fwd: Peace BeTween AmeriCa And IsLam! - -- The message body says, Hi! iS iT A waR Against AmeriCa Or IsLam! Let's Vote To Live in Peace! - -- The attachment to look for is WTC.EXE. - -- TROJ_VOTE.A deletes certain antivirus products installed in a system, and deposits the files WTC.exe MixDaLaL.vbs, and Zacker.vbs. - - Nimda is still out there and needs to be addressed by aggressive patching of systems - -------------------------------------- Recommended Security Focus - -------------------------------------- - - Implementation of your antivirus action plan. If you don't have one, recommend you develop one. Key elements of any such plan must include learning about new viruses, getting the word out to your users and various system and network administrators, limiting both damage and inconvenience, and expediting antivirus updates. One indispensable feature of any such plan is empowering someone to take decisive action to disconnect any or all of the network from the Internet or Extranets in order to stop the spread of hostile code - should that be the only available solution. The identity of this person should be well known and they should be easy to reach. This is the kind of decision that needs to be made in minutes, and executed immediately. - --------------------------------------- SOLUTIONS - --------------------------------------- Antivirus Activity: - - Notify all users on your networks not to open e-mail attachments with a subject line anything like this, "Fwd:Peace BeTween AmeriCa And IsLam !" as this is the W32.Vote worm. Alert all users not to open any attachment resembling WTC.exe. - - Force anti-virus updates and direct all users, particularly those with laptops, to power up and update their anti-virus before conducting any business with the computer. For updated anti-virus software, see the following sites: <http://www.symantec.com/avcenter/defs.download.html> <http://www.antivirus.com/vinfo/virusencyclo/default5.asp?VName=TROJ_VOT E.A> Nimda Activity: - - Re-install patches previously instructed by ISS and software vendors for IIS vulnerabilities, etc. - - Get management involved to help you marshal the resources you need to patch everything and keep it patched. Remember that whenever OS are installed or reinstalled if the patches are not also included you have left gaping holes in your network. The same is true for anti-virus updates. All patches from the date of the OS you are installing must be manually researched and installed. The Microsoft "mega patch" at the link below is a big help in this effort. - - Users everywhere are reminded that one of the features of Nimda is randomly booby-trap web sites throughout the Web. Opening an infected site invites Nimda infection via Java script. Networks with strong, updated gateway protection notify the user and strip the malicious logic from the packet stream. Small office and home networks may have less protection but should be moving rapidly towards commercial anti-virus solutions. - - Microsoft's web site has the full solution set for its products at this site: <http://www.microsoft.com/technet/treeview/default.asp?url=/technet/sec urity/topics/Nimda.asp> - - All the major anti-virus vendors now have Nimda solutions. Aris has an excellent write-up on the Worm and some further links to security solutions: <http://aris.securityfocus.com/alerts/nimda/010919-Analysis-Nimda.pdf> - ------------------------------------- Attack Signatures - global IDS, midnight - midnight, previous day, % of total - ------------------------------------- Unauth Access Attempts 55.36% Protocol Decode 36.16% Suspicious Activity 05.32% Denial of Service 01.81% Pre-Attack Probe 01.18% Back Doors 00.17% - ------------------------------------- Top Ten Destination Ports - global IDS, midnight - midnight, previous day, % of top ten (ports found at <http://www.iana.org/assignments/port-numbers> - ------------------------------------- 80 (http) 98.03% 25 (smtp) 00.66% 69 (tftp) 00.42% 21 (ftp) 00.40% 24452 (unassigned) 00.14% 31337 (unassigned) 00.13% 443 (https) 00.09% 123 (ntp) 00.05% 15104 (unassigned) 00.04% 12754 (unassigned) 00.04% - --------------------------------------- VIRUS, VULNERABILITY, NEWS UPDATES - --------------------------------------- <http://www.iss.net/> under "Global Internet Threat Intelligence Service" - --------------------------------------- NOTE, DISCLAIMER AND COPYRIGHT NOTICE - --------------------------------------- NOTE: Our web site with this information in more attractive format and graphics is available to the public at no cost at <http://www.iss.net/> under "Global Internet Threat Intelligence Service". Screen captures (Control/PrtSc) of the site's pages dropped into PowerPoint can be an effective way to communicate various aspects of the Internet threat, e.g. the graph depicting "AlertCon Trends". We provide this information on Internet threat metrics, viruses, vulnerabilities, patches, and breaking news, 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 2001 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] <mailto:[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. Dennis Dennis Treece Director, Global MSS Special Operations Group Internet Security Systems (ISS) 6303 Barfield Road Atlanta, Georgia 30328 404-236-4065 Cell 404-667-9345 Fax 404-236-2626 Internet Security Systems -- The Power to Protect -----BEGIN PGP SIGNATURE----- Version: PGP 6.5 iQA/AwUBO7DewOOOe/7N9KJeEQKmKQCgjrFXyLVpPsAEncz4VLqq+sjT8UUAoLcQ WurhJSFOWQ515OGASLanif/n =afQC -----END PGP SIGNATURE-----
AlertCon 2/2 Internet Threat Update and Solutions for Sep 25-27 2001
Treece, Dennis (ISS Atlanta) Tue, 25 Sep 2001 14:47:13 -0700
