[Update] Honeypot results June 2012

Here are the latest graphs of my honeypot. Overall “normal traffic”, at the exception of several attempts to download a file named “h.exe” from a particular IP address. However it seems that this host has been cleaned in the meantime as all attempts results in a “404 Not Found”.

[Update] I have done a bit more research regarding this particular IP address. It seems that this host has been used for other piece of malwares based on the Malc0de database:

Continue reading “[Update] Honeypot results June 2012”

[FR] Installer Wireshark sous Mac OS X 10.5 & 10.6

Wireshark ? Qu’est-ce que c’est ?

Voici, une liste non exhaustive des fonctionnalités de base de ce logiciel:

  • support de plusieurs protocoles (une centaine au total)
  • capture du trafic en mode on/off line
  • fenêtre de visualisation à trois volets
  • fonctionne sur plusieurs systèmes d’exploitation: Windows, Linux, OS X, Solaris, Free BSD, netBSD, etc.
  • utilisation de filtres pour faciliter l’analyse des données
  • analyse du trafic VoIP
  • lecture/écriture dans plusieurs formats: tcpdump, Pcap NG, Catapult DCT200, Cisco, Microsoft, etc…
  • possibilité de compresser/décompresser les fichiers de capture à la volée
  • les données peuvent être analysées sur plusieurs interfaces différentes: Ethernet, 802.11 (wifi), PPP/HDLC, ATM; Bluetooth, USB, Token Ring, Frame Relay, etc.
  • support de la décompression de plusieurs protocoles comme IPsec, Kerberos, SNMP v3, SSL/TLS, WEP et WPA/WPA2

Certains peuvent également se demander pourquoi utiliser un tel logiciel? D’autres diront immédiatement que ce genre de logiciel est utilisé afin de faire de “l’écoute” sur le réseau et de pouvoir ainsi obtenir l’accès à des données confidentielles.
Premièrement, l’utilisation de Wireshark peut être particulièrement utile afin de trouver et réparer une panne ou un problème dans un réseau. Cet outil permet d’obtenir une meilleure compréhension de l’environnement et de l’infrastructure du réseau. Deuxièment, et je ne souhaite pas lancer un débat ici, effectivement ces outils peuvent être utilisé à des fins de Ethical Hacking.

Continue reading “[FR] Installer Wireshark sous Mac OS X 10.5 & 10.6”

Flame – Cyberwar in action?

Information about the Flame virus have been published in the the last few days of May 2012. This discovery has been made two years after Stuxnet (June 2010) and less than a year after Duqu (Sept. 2011). Despite the fact that those three virus have different objectives, they have in common their complexity and the fact that they have been probably developed by people with “unlimited” resources. So where are we now? Is this cyberwar? or this is the natural evolution of cyber criminal?

What is Flame? How does it work?

Easy question, but difficult answer! In short Flame is a little bit of everything. The best way to describe it to use the term “attack toolkit”. It’s a toolkit because it’s modular approach allow him to become a backdoor, a worm, it can also perform various malicious activities such as key logger, network sniffing, listening to audio interface, steal information, enable Bluetooth and scan other devices, etc. In short it can do more or less everything a hacker will dream of. Also, based on the experience of the security industry with Stuxnet everybody was expecting several Zero-Day attacks. There is actually no evidence of such type of attack in Flame. Especially there is still some questions about the initial infection vector. However Kaspersky has observed that a fully patched Windows 7 was still being infected, raising more suspicion about a zero day attack. Further analysis highlight a different story… Continue reading “Flame – Cyberwar in action?”