Sunday, March 4, 2012

"Digital Forensics Platform"

My latest column on the DEFT 7 forensics environment. Here is the excerpt.
"Digital Forensics is a niche domain within Information Security. It can be further divided into System and Network Forensics. System Forensics requires an indepth knowledge of Operating Systems (OS) and file systems whilst Network Forensics requires an extensive understanding of network protocols and discernment of application behaviour."

Wednesday, January 4, 2012

"Secure Your DNS"

My latest and first column of the year is out. Here is the excerpt.
"Do you trust your ISP’s DNS setup? I don’t! DNS is susceptible to attack by malicious entities to target innocent victims just like any other protocol. The solution is to engage OpenDNS as your trusted DNS service which is harnessed by home and enterprise networks globally."

Tuesday, December 20, 2011

Common sense

Technology is never foolproof and here is an excellent example where common sense is overwhelmingly essential.
I received the highlighted link in my Gmail which wasn't marked as spam. A quick glance at the path and I knew this was obviously a ruse but I wondered why Gmail's spam detection didn't pick this up. I quickly ran the suspicious link against the scanners hosted on VirusTotal and was utterly disappointed that not a single engine was able to mark it as malicious.

Saturday, December 3, 2011

"Wireshark: The Secrets of the Shark"

Rushed out 2 columns drafts ahead of schedule and Hakin9 decided to use them in consecutive issues. Here is the excerpt of the latest one.
"This column was inspired by the international screening of the Tintin movie by Steven Spielberg and Peter Jackson. Just like Tintin, Wireshark is an international icon too. It is primarily harnessed for network troubleshooting and packet analysis but did you know that there are other applications of this powerful tool?"

Monday, November 28, 2011

v4.0

I upgraded "Firefox" to v8 and realised that it was sluggish due to configs being wiped by v3.0 of my "ubuntuprivacy" script. I modified the script as follows.

#!/bin/sh
echo "\033[0;34mProceeding to clean your system to ensure your privacy.\033[0m"
echo
echo "\033[0;31mWiping Firefox history and cache.\033[0m"
#sudo srm -rllv .mozilla/firefox/*.default/*.sqlite
sudo srm -rllv .mozilla/firefox/*.default/addons.sqlite
sudo srm -rllv .mozilla/firefox/*.default/chromeappsstore.sqlite
#sudo srm -rllv .mozilla/firefox/*.default/content-prefs.sqlite
sudo srm -rllv .mozilla/firefox/*.default/cookies.sqlite
sudo srm -rllv .mozilla/firefox/*.default/downloads.sqlite
#sudo srm -rllv .mozilla/firefox/*.default/extensions.sqlite
sudo srm -rllv .mozilla/firefox/*.default/formhistory.sqlite
sudo srm -rllv .mozilla/firefox/*.default/permissions.sqlite
#sudo srm -rllv .mozilla/firefox/*.default/places.sqlite
sudo srm -rllv .mozilla/firefox/*.default/search.sqlite
sudo srm -rllv .mozilla/firefox/*.default/urlclassifier3.sqlite
sudo srm -rllv .mozilla/firefox/*.default/webappsstore.sqlite
sudo srm -rllv .mozilla/firefox/*.default/Cache/*
echo "\033[0;32mFirefox history and cache wiped.\033[0m"
echo "\033[0;31mWiping Trash.\033[0m"
sudo srm -rllv .local/share/Trash/
echo "\033[0;32mTrash wiped.\033[0m"
echo "\033[0;31mWiping Applications history and cache.\033[0m"
sudo srm -rllv .recently-used
sudo srm -rllv .recently-used.xbel
sudo srm -rllv .thumbnails
sudo srm -rllv .macromedia/Flash_Player/#SharedObjects/*
#sudo srm -rllv .openoffice.org/*/user/temp
#sudo srm -rllv .openoffice.org/*/user/backup
sudo srm -rllv .libreoffice/*/user/temp/*
sudo srm -rllv .libreoffice/*/user/backup/*
sudo srm -rllv .purple/logs/*/*
sudo srm -rllv .xsession-errors
sudo srm -rllv .gimp-*/tmp
echo "\033[0;32mApplications history wiped.\033[0m"

#"ubuntuprivacy" written by commandrine.
#Please send comments and queries to commandrine[at]gmail[dot]com.
#Version 4.0 dated 9th Nov 2011.
#Pre-requisite is having "secure-delete" installed. Install it using "sudo apt-get install secure-delete".
#Save this script to your home folder. Run "sudo chmod +x ubuntuprivacy.sh" to make it executable.

You can also download the script from here.