Category Archives: linux

Motorola Xoom: Review from an early adopter

Yesterday morning I received the wifi-only version of the 10.1-inch Android tablet Motorola Xoom. I bought it in USA because it wasn’t yet available in Europe when I purchased it. I choose the wifi-only version because of the following main … Continue reading

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WiFite patch for WLAN/JAZZTEL networks WEP & WPA cracking

I have made a quick patch for wifite r67, which adds support to crack WLAN and JAZZTEL networks in Spain, both WEP and WPA versions. The WPA keys are computed statically using the already known algorithms and the guessed key … Continue reading

Posted in linux, security, wireless | Tagged , , , , , , , | 12 Comments

4sqcheat – automatic foursquare checkin

This is a quick script I wrote some time ago to steal the mayorship from a friend on a concrete foursqure venue. You can launch it from cron to steal a mayorship or launch it manually get any impossible badge … Continue reading

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exif2maps – get google maps link from picture exif data

A quick shell script to generate a google maps link from geo-location data found inside a picture exif tags. Usage example: $ ./ la-foto-3.jpg,-5.6058333 Download:

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From APK to readable java source code in 3 easy steps

Android applications are packed inside a APK file, which is just a ZIP file containing among other things a compact Dalvik Executable (.dex) file. First step is to extract the “classes.dex” file from the APK: $ unzip program.apk classes.dex Archive: … Continue reading

Posted in android, linux, security | Tagged , , , , , , , , , | 25 Comments

Edit image resources inside an android APK file

Today I had to change some image resources in a APK file, the process is easy once you know it, so I just post it here for future reference: First use the tool “aapt” from the android SDK to list … Continue reading

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[tip] generate transparent text images using imagemagick

To generate 100 images, containing numbers 0 to 100: for f in `seq 0 100` ; do convert -size 25×25 xc:transparent -font /usr/share/fonts/truetype/ttf-dejavu/DejaVuSansMono-Bold.ttf \ -fill $COLOR -pointsize 19 -draw “text 1,20 ‘$f'” res/drawable/notify_$f.png done

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[tip] Change colors using imagemagick

This will replace all black color for white color: convert input.png -fill white -opaque black output.png

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Algoritmo para generar claves WPA de las redes WLAN_XXXX y JAZZTEL_XXXX

El 15 de Diciembre de 2010 la página de SeguridadWireless publico un servicio que calculaba las claves WPA de los SSID WLAN_XXXX y JAZZTEL_XXX screenshot aqui. No publicaron el código, y al cabo de pocas horas la página dejó de … Continue reading

Posted in linux, wireless | Tagged , , , , , , , | 21 Comments

Generic load balancer for multiple WAN links

So you have two or more ADSL lines and want to use them all? … or maybe you’re stealing your neighbor’s wifi and you have more than one network available? … or you have cloned your SIM card and want … Continue reading

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