Writeups - Forensic - BusyBee
Information# Version# Date By Version Comment 05/06/2016 noraj 1.0 Creation CTF# Name : BackdoorCTF 2016 Website : https://backdoor.sdslabs.co Type : Online Format : Jeopardy CTF Time : lin
Tag: security
Hardened Tor Browser with Selfrando
6 June 2016, the Tor Project announced a hardened version of Tor Browser: 6.5a1-hardened. Here some links: Download page for hardened builds (only avaible for Linux at this time). Distribution direct
Hide AES-256 encrypted zip file in a JPEG image
This how-to was made for Linux user. The user will need p7zip, exiv2 and optionally exif, exiftool, unzip. Create an AES-256 encrypted zip file# 7z (p7zip for Linux) can produce zip-format archives wi
Security related Operating Systems
The list of security related OS is now part of Rawsec's CyberSecurity Inventory!
Pastejacking vs clipboard hijacking
Clipboard hijacking# It as been possible for a long time to use css (-9999px position trick) to append malicious content to the clipboard. Users doesn't notice anything and may execute unwanted comman
Writeups - Crypto - MindBlown
Information# Version# Date By Version Comment 05/06/2016 noraj 1.0 Creation CTF# Name : BackdoorCTF 2016 Website : https://backdoor.sdslabs.co Type : Online Format : Jeopardy CTF Time : lin
Writeups - Crypto - Oups it's all mixed
Information# Version# Date By Version Comment 03/05/2016 noraj 1.0 Creation Name# Oups it's all mixed Category# Cryptography Wording# Decipher the following flag: eGqaelr557dK4BbK47dS17dK68c
c99.php : A backdoored backdoor
C99 is a PHP webshell. Attackers uploads it on web server in order to get information and above all execute commands with web user privileges (ex: www-data). This webshell is protected by a customizab
Tracking down Tor users with mouse movements
Jose Carlos Norte, security researcher, wrote a post detailing how Tor Browser users can be uniquely fingerprinted using the mouse wheel, mouse speed, a CPU benchmark, and “getClientRects”. POCs (proo
How to disable SSH login for the root user
Create a new user. In the following example, we will name it bob. root# useradd -m bob root# id bob uid=1000(bob) gid=1000(bob) groupes=1000(bob) Set the password for the new user. root# passwd bo