Well, Thor was writing TSGrinder to basically brute force the way in. However, its still in Beta and isn't freely available. http://www.hammerofgod.com/download.htm But, as Thor points out, the data in the TS channel is encrypted and therefore makes it difficult to observe or detect brute force attacks with NIDS. If you don't rename the Administrator account and/or you don't monitor your event logs, you just sit there and manually brute force it till your blue in the face and no one would be the wiser. The other option, is there was a Buffer Overflow exploit in NT4 TSE. If they're not patched, they are vulnerable. Also, there's a memory leak in TS that is patched by Q292435. Other than that, I don't know of any of the top of my head. -K -----Original Message----- From: Bukys, Liudvikas [mailto:bukysat_private] Sent: Monday, May 13, 2002 11:00 AM To: incidentsat_private; unisogat_private Cc: bukysat_private Subject: Windows Systems Defaced/destroyed, plus Port 3389 attacks -------- REGARDING: - ONGOING "F***ing University of Rochester" defacement and destruction - OLD Fluxay SQL & NETBIOS attacks - NEW Port 3389 WTS attacks & HP LaserJet defacements/reconfigurations --- I am continuing to hear about newly-hacked sites, that have experienced identical attacks, using MS SQL Server holes and a "rochester.bat" script previously discussed on the "incidents" list, to delete most files, and, if there is an IIS web server installed, replace its home page with text reading "F***ing University of Rochester" (please excuse the language). Victims to date have included several systems at UC Santa Cruz, a U Penn Cancer Center third-party hosted web site, a headhunting firm, and publishing firm. *** If any more sites are hacked in this fashion, I would appreciate hearing about it -- please send email to abuseat_private *** --- Many of you have been experiencing similar sets of attacks via SQL, NETBIOS, and various other ports. The University of Rochester experience includes these common features: * Scanning for and exploitation of Microsoft SQL server weak or blank 'sa' passwords (port 1433) * Scanning for and explotation of weak passwords on Windows administrator accounts (netbios ports 137-139, 445, 524) * installation of back door software on compromised machines (typically RemoteNC or FluxaySensor) * Most common tool for the above has been Fluxay from www.netxeyes.com/down.html. It offers very easy one-click exploitation and back-door installation. --- IN ADDITION, the same attackers have been exploiting or trying to exploit the following. I point them out separately because there has not been much discussion yet about port 3389 exploits in particular, so I am keenly interested in getting more information (and in alerting the rest of you). * Scanning for and exploitation of something in Windows Terminal Server (port 3389). Exploit tool and attack method unknown. (Please all if evidence turns up.) * Defacement and reconfiguration of HP LaserJet printers (ports 23, 9100, 80), addresses set to collide with production web and dns servers. Expoit tool and attack method unknown. We have at least one claim that a printer with up-to-date firmware and a password set still got exploited, so perhaps it's not all weak passwords. *** If you see similar attacks, I would be grateful for additional information you could provide regarding the attackers (e.g. source of attack, for correlation purposes), and their methods (e.g. copies of attack tools left behind). I would especially welcome information on the port 3389 mystery exploit. *** --- Liudvikas Bukys Associate Vice Provost for Computing Office of CIO University of Rochester bukysat_private 716-275-7747 ---------------------------------------------------------------------------- This list is provided by the SecurityFocus ARIS analyzer service. For more information on this free incident handling, management and tracking system please see: http://aris.securityfocus.com ---------------------------------------------------------------------------- This list is provided by the SecurityFocus ARIS analyzer service. For more information on this free incident handling, management and tracking system please see: http://aris.securityfocus.com
This archive was generated by hypermail 2b30 : Fri May 17 2002 - 13:54:46 PDT