noraj (Alexandre ZANNI) - Cybersecurity engineer & Pentester

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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

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How to manually configure Firefox / Waterfox language

Go to https://ftp.mozilla.org/pub/firefox/releases/ Choose the Firefox version, ex: 46.0 Choos the architecture, ex: linux-x86_64 Go into the xpi folder Choose a language, ex: fr.xpi Click on the cho

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Virtualbox : shared folder with guest

This how-to works independently of the host platform. On virtualbox : Open the Configuration window of the VM (guest) Select Shared folder on the left menu Click on the icon corresponding to Add a sh

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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

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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

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How to convert VirtualBox vdi to KVM qcow2

VBoxManage can't directly convert vdi to qcow2, so there is two options : With VBoxManage convert vdi to raw and with qemu-img convert raw to qcow2 With qemu-img convert vdi to qcow2 Notes : vdi are

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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

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FreeBSD 10.3 is here

FreeBSD update to version 10.3. Main improvments: 15 security flaws patched UEFI support Gnome 3.16.2 Full Release Notes on official FreeBSD website.