August 2003 - NZNOG - lists.nznog.org

nz spam
by Thomas Salmen 18 Aug '03

18 Aug '03

so this is your fault juha http://www.nzherald.co.nz/storydisplay.cfm?storyID=3518682&thesection=news&t hesubsection=general

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RE: [nznog] Weird pings
by Drazen Babich 18 Aug '03

18 Aug '03

Looks to be related to the stuff below : http://securityresponse.symantec.com/avcenter/venc/data/w32.welchia.worm.htm l <http://securityresponse.symantec.com/avcenter/venc/data/w32.welchia.worm.ht ml> PSS Security Response Team Alert - New Worm: Nachi, Blaster-D, Welchia<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> SEVERITY: CRITICAL DATE: 08/18/2003 PRODUCTS AFFECTED: Windows 2000 and XP, Internet Information Services 5.0 ********************************************************************** WHAT IS IT? A new worm is spreading in the wild. The Microsoft Product Support Services Security Team is issuing this alert to advise customers to be on the alert for this virus as it spreads in the wild. Customers are advised to review the information and take the appropriate action for their environments. IMPACT OF ATTACK: Network Propagation, Patch Installation TECHNICAL DETAILS: Similar to the earlier Blaster worm and its variants, this worm also exploits the vulnerability patched by Microsoft Security Bulletin MS03-026, and instructs target systems to download its copy from the affected system using the TFTP program. In addition to exploiting the RPC vulnerability patched by Microsoft Security Bulletin <?xml:namespace prefix = st2 ns = "schemas-microsoft-com/microsoft" />MS03-026 this worm also uses a previously patched vulnerability in Microsoft Security Bulletin MS03-007 directed at IIS 5.0 over port 80 to propagate to un-patched systems. In addition upon successful infection this worm also patches systems with the patch for Microsoft Security Bulletin MS03-026. It does this by first determining the operating system and then downloading the associated patch for that operating system. For additional details on this worm from anti-virus software vendors participating in the Microsoft Virus Information Alliance (VIA) please visit the following links: Network Associates: http://vil.nai.com/vil/content/v_100559.htm <http://vil.nai.com/vil/content/v_100559.htm> Trend Micro: http://www.trendmicro.com/vinfo/virusencyclo/default5.asp?VName=WORM_MSBLAST .D <http://www.trendmicro.com/vinfo/virusencyclo/default5.asp?VName=WORM_MSBLAS T.D> Symantec http://securityresponse.symantec.com/avcenter/venc/data/w32.welchia.worm.htm l <http://securityresponse.symantec.com/avcenter/venc/data/w32.welchia.worm.ht ml> For more information on Microsoft's Virus Information Alliance please visit this link: http://www.microsoft.com/technet/security/virus/via.asp <http://www.microsoft.com/technet/security/virus/via.asp> Please contact your Antivirus Vendor for additional details on this virus. PREVENTION: Turn on Internet Connection Firewall (Windows XP or Windows Server 2003) or use a third party firewall to block incoming TCP ports 80, 135, 139, 445 and 593; UDP ports 135, 137, 38. To enable the Internet Connection Firewall in Windows XP please see the instructions below or visit this Knowledge Base Article: http://support.microsoft.com/?id=283673 <http://support.microsoft.com/?id=283673> * In Control Panel, double-click Networking and Internet Connections, and then click Network Connections. * Right-click the connection on which you would like to enable ICF, and then click Properties. * On the Advanced tab, click the box to select the option to Protect my computer or network. This worm utilizes two previously-announced vulnerabilities as part of its infection method. Because of this, customers must ensure that their computers are patched for the vulnerabilities that are identified in the following Microsoft Security Bulletins. Microsoft Security Bulletin MS03-026 http://www.microsoft.com/technet/security/bulletin/MS03-026.asp <http://www.microsoft.com/technet/security/bulletin/MS03-026.asp> Microsoft Security Bulletin MS03-007 http://www.microsoft.com/technet/security/bulletin/MS03-007.asp <http://www.microsoft.com/technet/security/bulletin/MS03-007.asp> In order to assist customers with the installation of the patch for Microsoft Security Bulletin MS03-026 Microsoft has released a tool which can be used to scan a network for the presence of systems which have not had the MS03-026 patch installed. More details on this tool are available in Microsoft Knowledge Base article 826369. RECOVERY: If your computer has been infected with this virus, please contact your preferred antivirus vendor or Product Support Services for assistance with removing it. RELATED KB ARTICLES: http://support.microsoft.com/default.aspx?scid=kb;en-us;826234 This article will be available within 24 hours. RELATED SECURITY BULLETINS: Microsoft Security Bulletin MS03-026 http://www.microsoft.com/technet/security/bulletin/MS03-026.asp <http://www.microsoft.com/technet/security/bulletin/MS03-026.asp> Microsoft Security Bulletin MS03-007 http://www.microsoft.com/technet/security/bulletin/MS03-007.asp <http://www.microsoft.com/technet/security/bulletin/MS03-007.asp> VIRUS ALERT LINK: http://www.microsoft.com/technet/security/virus/alerts/nachi.asp <http://www.microsoft.com/technet/security/virus/alerts/nachi.asp> As always please make sure to use the latest Anti-Virus detection from your Anti-Virus vendor to detect new viruses and their variants. -----Original Message----- From: Perry Lorier [mailto:perry(a)deeper.co.nz] Sent: Tuesday, 19 August 2003 1:09 a.m. To: nznog(a)list.waikato.ac.nz Subject: [nznog] Weird pings _____ This e-mail message has been scanned and cleared by MailMarshal at www.gen-i.co.nz <http://www.gen-i.co.nz> _____

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Weird pings
by Perry Lorier 18 Aug '03

18 Aug '03

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Is everyone else seeing ICMP echo request packets sent to random IP's from what appear to be insecure windows machines? The pings seem to be appearing every few minutes, and don't seem to be isolated to any particular ISP, or even anywhere in particular in the world, which is easily confirmed by ssh'ing to machines in the US and EU and doing tcpdump and seeing exactly the same traffic. The pings look like: 00:53:59.511049 61.85.33.233 > xx.xx.xx.xx: icmp: echo request (ttl 114, id 32026, len 92) 0x0000 4500 005c 7d1a 0000 7201 028e 3d55 21e9 E..\}...r...=U!. 0x0010 xxxx xxxx 0800 fba0 0400 a309 aaaa aaaa .m.M............ 0x0020 aaaa aaaa aaaa aaaa aaaa aaaa aaaa aaaa ................ 0x0030 aaaa aaaa aaaa aaaa aaaa aaaa aaaa aaaa ................ 0x0040 aaaa aaaa aaaa aaaa aaaa aaaa aaaa aaaa ................ 0x0050 aaaa aaaa aaaa aaaa aaaa aaaa ............ This seems to have been going on for quite a long time (a week? two weeks?) and the source addresses seem rather varied. Current speculation is that this is an attack on the source address done by spoofing the source to be the target and sending to legitimate destination addresses. Does anyone have any more information? - -- Xerox does it again and again and again and ... -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) Comment: Only when you are sure they have you, can you stop being paranoid iD8DBQE/QM/rcAgRpy8z8UQRAjAIAKC8So3A3cRgOuIjJYx9M6GwMMQ0ewCgj5+u kmG5NtMLnUx71k7c6eyQpyI= =LEDs -----END PGP SIGNATURE-----

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RE: [nznog] blaster worm
by Simon Byrnand 17 Aug '03

17 Aug '03

At 14:16 16/08/2003 +1000, Nathan Mercer wrote: >If you are having problems with WU can I suggest you try this URL >https://v4.windowsupdate.microsoft.com/en/default.asp > >Cheers >Nathan Yep that works, it reports updates that are needed. However, two days later and the normal Windows Update URL, that everyone else in the world uses, still doesn't work - it just reports that there are no updates needed, and it doesn't perform the scanning step (33%....66%) that it should. I just checked on a Windows 2000 machine that hadn't already been updated for the Blaster Worm, and the normal Windows Update (as accessed from the Start menu or through Tools -> Windows Update) cheerfully announced that there were no critical updates (or indeed updates of any kind) while your link revealed that the patch was needed. I wonder just how widespread this is and how many people are getting lulled into a false sense of security thinking they're protected against the worm because Windows Update doesn't offer any updates.... Regards, Simon

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RE: [nznog] blaster worm
by Nathan Mercer 17 Aug '03

17 Aug '03

Infected systems begin the attack when their system clocks reach 16 August, and continue until December 31. From January through July, infected systems will only conduct the DDoS attack from the 15th through the end of each month Nathan -----Original Message----- From: Steve Withers [mailto:swithers(a)mmp.org.nz] Sent: Saturday, 16 August 2003 12:52 a.m. To: NZ NOG Subject: Re: [nznog] blaster worm On Fri, 2003-08-15 at 23:22, Malcolm Lockyer wrote: > Should be a more interesting 24 hours then eh? :-| It's supposed to start on the 16th.....do we know for sure if it is set to stop on the 17th? Or will it keep going until the PCs concerned are disconnected from the network? -- Steve Withers <swithers(a)mmp.org.nz> _______________________________________________ Nznog mailing list Nznog(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog

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RE: [nznog] microsoft.com
by Jithen Singh 16 Aug '03

16 Aug '03

Whoops !! Sorry, missed that .. -----Original Message----- From: Craig Spiers [mailto:craig(a)concept.net.nz] Sent: Sunday, 17 August 2003 5:57 p.m. To: 'Jithen Singh' Cc: nznog(a)list.waikato.ac.nz Subject: RE: [nznog] microsoft.com Friday august 1.. Last Friday was Friday august 15th.. :) -----Original Message----- From: Jithen Singh [mailto:jsingh(a)net4u.co.nz] Sent: Sunday, August 17, 2003 5:55 PM To: nznog(a)list.waikato.ac.nz Subject: RE: [nznog] microsoft.com Microsofts downtime on Friday was in fact due to a denial of service attack http://www.microsoft.com/homepage/features/2003/denialofservice.htm Quote : "Overnight, microsoft.com has suffered an outage of a little over an hour. Microsoft have posted to the effect that this was caused by a [presumably non-http] denial of service that is not associated with any known vulnerability in Microsoft's own software. Speculation on Information Week that the outage might be part of a broader attack on internet infrastructure or linked to the start of the Defcon conference seems implausible, as only one other Fortune 100 site has shown an outage in the last 24 hours. Three of the 52 leading hosting providers monitored by Netcraft are showing outages in the last 24 hours, but all three are outside the US." Regards, Jithen -----Original Message----- From: Barry Murphy [mailto:barry(a)unix.co.nz] Sent: Saturday, 16 August 2003 6:12 p.m. To: Craig Spiers Cc: nznog(a)list.waikato.ac.nz Subject: Re: [nznog] microsoft.com Contentm not logs. They have 31gig or something (stand to be corrected, just read the link), but they currently have 102gig of content. If they creating 4gig of content a day, that would mean in 25 days they would have 204gigs of content. Surely this cannot be correct. Maybe it's just the beers doing the math, but thats the way I understand it. Barry ----- Original Message ----- From: "Craig Spiers" <craig(a)concept.net.nz> Cc: <nznog(a)list.waikato.ac.nz> Sent: Saturday, August 16, 2003 6:06 PM Subject: RE: [nznog] microsoft.com > That would be about right.. Logfiles and all.. > > Surely they don't keep logs more than 7 days :) > > -----Original Message----- > From: Barry Murphy [mailto:barry(a)unix.co.nz] > Sent: Saturday, August 16, 2003 6:05 PM > To: Nathan Mercer; Juha Saarinen > Cc: nznog(a)list.waikato.ac.nz > Subject: Re: [nznog] microsoft.com > > Sorry, it also says on the MS site ... > > "102 GB of content" then goes on to say "Content created around the clock. > Approximately 4 GB of new and updated content published daily". That > would mean that every 25 days it would create or update the same > amount of content > that is currently on the server. Surely this isnt correct? > > Barry > > ----- Original Message ----- > From: "Nathan Mercer" <nmercer(a)microsoft.com> > To: "Juha Saarinen" <juha(a)saarinen.org> > Cc: <nznog(a)list.waikato.ac.nz> > Sent: Saturday, August 16, 2003 5:32 PM > Subject: RE: [nznog] microsoft.com > > > Microsoft.com is run on IIS6 with Windows Server 2003 > http://www.microsoft.com/backstage/inside.htm > > Akamai provide a content distribution network and dns to get download files > closer to end users to improve the overall end user experience by > speeding up file downloads. > > http://uptime.netcraft.com/up/graph?site=www.microsoft.com reports > that MS is running IIS6 on Linux! How is that possible? > > http://uptime.netcraft.com/up/accuracy.html#impossible > > Why do you report impossible operating system/server combinations ? > > Webservers that operate behind a caching system, load balancer, > reverse proxy server or a firewall may sometimes report the operating > system of the > intermediate machine. Hence reports of 'Microsoft/IIS on Linux' may indicate > that either the web server is behind a Linux server that is acting as > a reverse proxy, or has configured the Akamai caching system such that > the first request to the site goes to one of Akamai's servers [which > run Linux], > or as in the case of www.walmart.com has been configured to send a > misleading signature. > > -----Original Message----- > From: Juha Saarinen [mailto:juha(a)saarinen.org] > Sent: Saturday, 16 August 2003 9:12 a.m. > To: Joe Abley > Cc: nznog(a)list.waikato.ac.nz > Subject: Re: [nznog] microsoft.com > > Joe Abley wrote: > > > That power outage knocked out bits of the North Eastern US and most > > of > > > South-Western Ontario (including my house -- still no power here, > > just > > > laptops and cellphones). To the best of my knowledge most > > Microsoft-branded services are served out of Redmond, and Hotmail is > in > > the Bay Area somewhere (used to be in an MFN/AboveNet facility in > > San Jose, but I seem to remember they moved a while ago). > > > > Most large exchange facilities in New York seem to have survived on > > battery and diesel power, and I don't believe the outage stretched > > as far as Virginia (where it might have stood a fighting chance of > > impacting some high concentrations of network operators). > > > > So probably not related to the power outage. > > It's also interesting to note that a good chunk of Microsoft's Web > content is served from Linux boxes. "Akamaighost" apparently runs on Linux. > > Here's an example: > > http://uptime.netcraft.com/up/graph?site=a100.ms.a.microsoft.com > > Looks like Windows Update arrives to you via Linux as well. > > -- > Juha > > _______________________________________________ > Nznog mailing list > Nznog(a)list.waikato.ac.nz > http://list.waikato.ac.nz/mailman/listinfo/nznog > > > _______________________________________________ > Nznog mailing list > Nznog(a)list.waikato.ac.nz > http://list.waikato.ac.nz/mailman/listinfo/nznog > > > > > _______________________________________________ > Nznog mailing list > Nznog(a)list.waikato.ac.nz > http://list.waikato.ac.nz/mailman/listinfo/nznog > > > > _______________________________________________ > Nznog mailing list > Nznog(a)list.waikato.ac.nz > http://list.waikato.ac.nz/mailman/listinfo/nznog > _______________________________________________ Nznog mailing list Nznog(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog _______________________________________________ Nznog mailing list Nznog(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog

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RE: [nznog] microsoft.com
by Nathan Mercer 16 Aug '03

16 Aug '03

Microsoft.com is run on IIS6 with Windows Server 2003 http://www.microsoft.com/backstage/inside.htm Akamai provide a content distribution network and dns to get download files closer to end users to improve the overall end user experience by speeding up file downloads. http://uptime.netcraft.com/up/graph?site=www.microsoft.com reports that MS is running IIS6 on Linux! How is that possible? http://uptime.netcraft.com/up/accuracy.html#impossible Why do you report impossible operating system/server combinations ? Webservers that operate behind a caching system, load balancer, reverse proxy server or a firewall may sometimes report the operating system of the intermediate machine. Hence reports of 'Microsoft/IIS on Linux' may indicate that either the web server is behind a Linux server that is acting as a reverse proxy, or has configured the Akamai caching system such that the first request to the site goes to one of Akamai's servers [which run Linux], or as in the case of www.walmart.com has been configured to send a misleading signature. -----Original Message----- From: Juha Saarinen [mailto:juha(a)saarinen.org] Sent: Saturday, 16 August 2003 9:12 a.m. To: Joe Abley Cc: nznog(a)list.waikato.ac.nz Subject: Re: [nznog] microsoft.com Joe Abley wrote: > That power outage knocked out bits of the North Eastern US and most of > South-Western Ontario (including my house -- still no power here, just > laptops and cellphones). To the best of my knowledge most > Microsoft-branded services are served out of Redmond, and Hotmail is in > the Bay Area somewhere (used to be in an MFN/AboveNet facility in San > Jose, but I seem to remember they moved a while ago). > > Most large exchange facilities in New York seem to have survived on > battery and diesel power, and I don't believe the outage stretched as > far as Virginia (where it might have stood a fighting chance of > impacting some high concentrations of network operators). > > So probably not related to the power outage. It's also interesting to note that a good chunk of Microsoft's Web content is served from Linux boxes. "Akamaighost" apparently runs on Linux. Here's an example: http://uptime.netcraft.com/up/graph?site=a100.ms.a.microsoft.com Looks like Windows Update arrives to you via Linux as well. -- Juha _______________________________________________ Nznog mailing list Nznog(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog

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RE: [nznog] blaster worm
by Nathan Mercer 16 Aug '03

16 Aug '03

We're experiencing increased traffic levels, but its not DoSing us. You might be interested in reading some more about the Blaster worm here Recommendations to ISPs Regarding the Blaster Worm http://www.microsoft.com/serviceproviders/security/isp_blaster.asp There is a Word DOC there with some more info. You can read with the Word viewer downloadable here http://download.microsoft.com/download/word2000/wd97vwr/2000/WIN98/EN-US /wd97vwr32.exe Nathan -----Original Message----- From: Barry Murphy [mailto:barry(a)unix.co.nz] Sent: Saturday, 16 August 2003 9:45 a.m. To: Nathan Mercer Cc: NZ NOG Subject: Re: [nznog] blaster worm Nathan, Are you aware of microsoft being affected from the DDoS of this virus yet? Seeing as you people will probably hear first off.

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spam farms
by Liz Q 16 Aug '03

16 Aug '03

Is there anything that can be done about these 'Spam Farms' ? ie Companies that take 30+ C classes have a domain for every c class and set up reverse and forward mx<num>@<domain> for each ip. They appear to be designed purely for spam and One company in particular ive been having issues with, appear to own a couple hundred C class. Is there any way they can be mass listed with spam servers? Liz Q

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RE: [nznog] blaster worm
by Nathan Mercer 16 Aug '03

16 Aug '03

www.windowsupdate.com isn't used for anything. It used to redirect to windowsupdate.microsoft.com If customers need to download patches they should be going to Windows Update link in their start menus which goes to windowsupdate.microsoft.com or www.windows.com 30 mins to go... Regards Nathan Microsoft NZ -----Original Message----- From: Malcolm Lockyer [mailto:ipvariance(a)hotmail.com] Sent: Friday, 15 August 2003 11:23 p.m. To: lennon(a)orcon.net.nz; simon.lyall(a)ihug.co.nz Cc: nznog(a)list.waikato.ac.nz Subject: Re: [nznog] blaster worm --snippity-- >Subject: Re: [nznog] blaster worm >Date: 15 Aug 2003 21:56:15 +1200 > >--snippity-- > >Make www.windowsupdate.com point to 127.0.0.1 so it doesn't do anything >or what? Except that it makes it a more effective DOS. Because then NOBODY can reach windowsupdate regardless - instead of just painfully slowly - or decently for whatever Akamai based reason. Time to hold onto whatever body part you guys value - here comes the storm. Although on a side note I hope the blaster infections are lower than I think they are - because all of you have been blocking netbios / 139tcp / etc. since this thing broke out. Right? Should be a more interesting 24 hours then eh? :-| m > >Thanks >Craig Whitmore >Orcon Internet >http://www.orcon.net.nz > --snippity-- _________________________________________________________________ Download MSN Messenger @ http://messenger.xtramsn.co.nz - talk to family and friends overseas! _______________________________________________ Nznog mailing list Nznog(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog

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