Modified Firmware Features of Sigma X2/Haxorware: Enable factory mode Change all associated MAC Addresses Change serial number Disable ISP firmware upgrade Disable reboots Force network access (ignore unauthorized messages) Disable & Set ISP filters (ports blocked at modem level) Specify config filename and TFTP server IP address Force config file from ISP, local TFTP or uploaded flash memory. Requirements In Depth (contd) Program the SB5100/5101 using Schwarze Katze/USB JTAG. Requirements In Depth (contd) Modify the SB5100/5101 or buy a Premod (available from sites like 8 Requirements In Depth Cable connection EJTAG Cable Easy to make Available online Soldering Skills + 10 pin header YouTube is an excellent resource for soldering referenceĪpplications for flashing the firmware onto a modem Parallel - Schwartze Katze by USB - USB JTAG from

SB5100/5101 cable modem Other modems can be modified Requirements What do you need for our examples? Coaxial connection to the cable company JTAG cable MIPS EJTAG (Enhanced Joint Test Action Group) - USB Cypress or FTDI based JTAG (Fast) - Parallel buffered/unbuffered JTAG (Slow) What This Speech Will Cover Requirements (for our examples) Network Overview Anonymous Access Gaining service with a non provisioned MAC addressĬloning a HFC MAC linked to an ISP account How Anonymous You Really Are How close ISPs can pinpoint your location as well as techniques to catch people abusing/stealing serviceįirmware Overview Hardware and Security Specifications, firmware disassembly, current and future security solutions4 Various people (such as Durandal from SOLDIERX) have used the methods in this Defcon presentation to put and keep modems online.3 Speech A much shorter version of this presentation was given at the Spring 2008 SERC Showcase.

I currently do research for SERC (Software Engineering Research Center), an NSF Industry/University Cooperative Research Center. Could this be the reason he thinks that the internet is a series of tubes?īackground Personal Conducted SIPRNET Administration and Red Team Penetration Testing for the USMC. HumorMaybe Ted Stevens has a series of hacked modems and a drop amp at his place.

Haxorware config file comcast