Jul 13 02

DD-WRT_logoToday I tried to upgrade my little WiFi-router (FON2100) to the actual DD-WRT version (v24 preSP2- Build 2128) but it crashed :'(

So I have to make a firmware-recovery. If you interested how it works you can read my short description. Continue reading »

written by d45id \\ tags: , , , , ,

Feb 13 15

frost_gnex_18Tilo Müller and Michael Spreitzenbarth from the Department of Computer Science at Friedrich-Alexander University of Erlangen-Nuremberg present FROST, a tool set that supports the forensic recovery of scrambled telephones.

You can find out more about their studies, technical report, nice pictures and the software on the project webpage.

 

written by d45id \\ tags: , , , , ,

Sep 10 30

Heute bin ich einmal wieder in die Situation gekommen das IOS aus dem ROMMON wieder herzustellen. Da ich so was nicht gerade alle Tage mache und daher etwas in das Grübeln gekommen bin nutze ich gleich die Gelegenheit um das ganze etwas zu dokumentieren.

Die Wiederherstellung funktioniert entweder via XModem oder TFTP. Ich erläutere hier lediglich die TFTP-Varainte.

  • Ersten LAN-Port des Routers mit dem Netzwerk verbinden
  • Setzen folgender Variablen im ROMMON:

rommon 1 > IP_ADDRESS=192.168.1.100
rommon 2 > IP_SUBNET_MASK=255.255.255.0
rommon 3 > DEFAULT_GATEWAY=192.168.1.1
rommon 4 > TFTP_SERVER=192.168.1.69
rommon 5 > TFTP_FILE=c870-adventerprisek9-mz.124-11.XJ4.bin

  • Wiederherstellung starten

rommon 6 > tftpdnl

IP_ADDRESS: 192.168.1.100
IP_SUBNET_MASK: 255.255.255.0
DEFAULT_GATEWAY: 192.168.1.1
TFTP_SERVER: 192.168.1.69
TFTP_FILE: c870-adventerprisek9-mz.124-11.XJ4.bin
Do you wish to continue? y/n:  [n]:  y

Receiving c870-adventerprisek9-mz.124-11.XJ4.bin from 192.168.1.69 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
File reception completed.
File flash:/c870-adventerprisek9-mz.124-11.XJ4.bin already exists.
Deleting flash:/c870-adventerprisek9-mz.124-11.XJ4.bin before creating new file with same name.
Writing flash:/c870-adventerprisek9-mz.124-11.XJ4.bin
Write operation will take approximately 108 to 324 seconds

  • IOS booten

rommon 7 > boot
Booting flash:/c870-adventerprisek9-mz.124-11.XJ4.bin
Self decompressing the image : ################################################################################################################## [OK]

  • Fertig

written by d45id \\ tags: , , , ,