SANS Digital Forensics and Incident Response Blog: Category - Computer Forensics

Digital Forensics Case Leads: ATT/Apple Rushes in The Forensics and Incident Response Team

A web application flaw was announced late Wednesday that appears to impact users of the 3G Apple iPad. According to press reports, AT&T is rushing in a forensic team in an attempt to determine the damage the flaw may have inflicted.

Gadget blog Gizmodo reports that a flaw in web application used to sign onto to an Apple/AT&T 3G iPad account allows an attacker to get into the account by incrementing the serial numbers on the SIM card on 3G iPads. It is not unusual for a web development team to not focus on using secure methods like using random numbers in generating web sessions. If there is no web application security team in place, these flaws can live on for years in web applications and sites.

AT&T claims that the team that discovered the flaw did not use responsible disclosure to alert AT&T and Apple about the flaw before going public. AT&T said that they closed this

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WMIC for incident response

Earlier this week, I posted about using psexec during incident response. I mentioned at the end of that post that I've been using WMIC in place of psexec and that I'd have more on that later. This post, is a follow up to the psexec post.

WMIC

Prompted by the excellent work of Ed Skoudis and his part in the Command Line Kung Fu blog, as well as a really nice webcast he did a few years ago titled Essential Windows Command-Line Kung Fu for Info Sec Pros and an Internet Storm Center article from the same year, I've come to rely on WMIC for a large number of IR tasks. It provides much of the functionality of PsExec, as well as a lot of

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Digital Forensics Case Leads: FTK's updates

Whether you use FTK or Encase, commercial products have incredible functionality that can be utilized in conjunction with open source computer forensics tools.For this week's Digital Forensics Case Leads, I wanted to focus on the updates to FTK. With commercial based products, just like with open source, it is a matter of preference which tool you want to add to you forensic arsenal.

Tools:

  • Forensic Toolkit (FTK') version3.1.2 was released May 17th with a 'New and Improved'section including 'View This Item in a Different List' feature that allows the user to right click on a folder, then go to that folder in a Graphics tab and see the files inside as well asimproved identification of JavaScript Object Notation (JSON) files such as those found in programs like FaceBook.
  • For the Password Recovery Toolkit'(PRTK') version6.5.1,and Distributed

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Protecting Admin Passwords During Remote Response and Forensics

PsExec

PsExec has been a great tool for remotely executing processes on a Windows machine. It has been around for years and is one of many useful tools from Mark Russinovich (formerly of SysInternals, now with Microsoft). As described on PsExec's webpage, "PsExec is a light-weight telnet-replacement that lets you execute processes on other systems, complete with full interactivity for console applications, without having to manually install client software."

That said, there is a significant drawback to PsExec's default behavior, as described in the last sentence of the description on PsExec's webpage: "Note that the password is transmitted in clear text to the remote system."

This is something that needs to be seriously considered and accounted for when using PsExec. Corporate incident responders typically have domain administrator rights for response purposes. The idea of

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First forensics work - Part 1: Organized chaos and panic

You've taken the plunge. You want to work in digital forensics. Congratulations. You've told your boss of this interest, managed to get some forensics training (SANS FOR508of course! ) and hyped upthe type of things you would be able to accomplish. You feel good about yourself.

Until now.

Two months after your course.

And you haven't had time to practice anything, let alone review the material.

The situation: You were called in and asked to use all of thesenew skills to help solve a problem. And the pressure is on, as they want someanswers by the end of the day. Now you are wondering why did I tell them I wanted to do this again?

Don't panic.

You can do this. We`ve all been there. All you need is a little help from your friends.

The goal of this seriesis to help guide you through a case, and provide suggestions on how

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