Thursday, June 02, 2011

toolsmith: Xplico

Those of you who make use of Network Forensic Analysis tools (NFAT) such as NetworkMiner or Netwitness Investigator will certainly appreciate Xplico.
June's toolsmith covers Xplico, a project released under GPL that decodes packet captures (PCAP), extracting the likes of email content (POP, IMAP, and SMTP protocols), all HTTP content, VoIP calls (SIP), IM chats, FTP, TFTP, and many others.
If you'd like a breakdown on the protocols you can grapple with check out the Xplico status page.
You can imagine how useful Xplico might be for policy enforcement (spot the pr0n), malware detection (spot the Renocide), or shredding IM traffic (spot the data leak).
Experimenting with Xplico is also a great chance to check out Pcapr, Web 2.0 for packets. ;-)
Xplico inlcudes a highly functional Web UI with great case and session management as seen in Figure 1.


Figure 1

With a resurgence of discussion of APT given the recent bad news for RSA, as well as all the FUD spawned by Sony's endless woes, I thought a quick dissection of an Aurora attack PCAP would be worth the price of admission for you (yep, free) as seen in Figure 2.


Figure 2

You'll note the beginning of a JavaScript snippet that has only the worst of intentions for your favorite version of Internet Explorer as tucked in an HTML page.
Copy all that mayhem to a text file (in a sandbox, please), then submit it to VirusTotal (already done for you here) and you'll note 26 of 42 detections including Exploit:JS/Elecom.D.
Want to carve off just that transaction? Select the pcap under Info from the Site page under the Web menu selction as seen in Figure 3.


Figure 3

Voila!
Ping me via russ at holisticinfosec dot org if you'd like a copy of the above mentioned Aurora PCAPs.

Also, stand by for more on APT detection in outbound traffic in the next day or two.

Your gonna like this tool, I guarantee it.
Check out the article here and Xplico here .

Cheers.

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