Computer forensics works to analyze information on computer systems in an attempt to find evidence regarding certain actions of a process, application, user or computer to determine the source of change within a host, network or device.

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evidence collection in incident response

In incident response, should evidence collection be done before incident containment or after? If both, when evidence collection should be done before and when should it be done after (examples are ...
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Get back data after restore from backup with iTunes [closed]

I am wondering if is any chance to get data back from iPhone 6s after I restore from backup with iTunes.
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2answers
63 views

What is the file signature for a .json file? [closed]

Suprisingly, I cannot find the hex value that identified a .json as a .json in any online list. What is the file signature for a .json file?
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6answers
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How secure is 'blacking out' sensitive information using Paint?

I'm wondering if it's safe to black out sensitive information from a picture just by using Microsoft Paint? Let's take in this scenario that EXIF data are stripped and there is no thumbnail picture, ...
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1answer
40 views

Write to selected disk location to overwrite deleted file

I know that every file on a computer is written to a specific disk location. Using Python I want to locate the file and overwrite it in order for it to be impossible to retrieve it. Using an SSD I ...
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28 views

Need computer forensic case citation (urgent) [migrated]

My mother is about to attend court over a car which was written off by a lorry. The CCTV video recording of the accident was mishandled, such as the storage SD card not being imaged, it was also ...
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Recover encryption key from Windows

Ok, So last night my Windows 10 Laptop crashed and was stuck in a repair boot loop and after troubleshooting and restarting and so on, the best course of action was to reset my PC. So as I was in ...
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1answer
58 views

Detecting datasets that were affected by SQL injection

Assuming that I know that one of my applications was attacked by an SQL injection, how can I identify edited or selected data sets? On obvious source are webserver logs. This should allow us to ...
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2answers
291 views

Is it possible to identify the source of message in whatsapp?

Is it possible to identify the real source of message in whatsapp? Scenario : Texting whatsapp message to a group,one of the group member forwards it to another and it goes on atlast one day it ...
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1answer
67 views

Can data be restored from a hard drive after using magnets to wipe the data? [duplicate]

Can a 512GB SATA hard disk be successfully restored after using magnets to wipe off it's data? From the movie: "The Core", https://youtu.be/g3KPSyNxnL8, rat using magnets to wipe his drive and puts ...
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3answers
50 views

Forensic analysis of file metadata

Suppose I have received a file (doesn't matter what it is - document, image, video, audio, etc). I know that the operating system and also programs that create the file like Office, and even hardware ...
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1answer
76 views

Wiping magnetic stripe on card with magnet?

I asked a question a while back on using magnets (for example powerful Neodymium ones) to wipe a HDD, and got shown a good article proving it is not possible to wipe data. Pretend I am about to ...
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Are there any Android device dumps available to be used as datasets?

I'm interested in finding Android device data dumps so as to use in my PhD research, concerning data analysis. I have only been able to encounter two sources online; one of them unavailable at the ...
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3answers
143 views

Recent hack appends to all javascript files

I have about 10 websites hosted on shared server by a2hosting, on apr 20 some of the js files for some of the websites were appended with a function that detects the device and if it is mobile it ...
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2answers
58 views

Is there anyway to analyze memory dynamically?

I do malware analysis by using memory forensics to gather more useful information but as far as I know, the result of memory acquisition is just one memory dumped for a specific time (snapshot). So, ...
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3answers
83 views

Frameworks for collecting all activities in a pentest?

I work as a penetration tester for a company, and one thing we're regularly asked to do is to provide a forensic log of all of the activities we perform during the course of an assessment. I'm ...
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3answers
61 views

MAC address of source in RDP session

In a forensic analysis I analyzed the event logs of the affected machine and saw various RDP sessions from XYZ IP address. However to prove that the source IP was not spoofed is it possible that I ...
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1answer
37 views

What buses carrying sensitive information on a running computer are vulnerable to sniffing?

Has there been any research on what buses in a computer can be analyzed while they are live, without rebooting the system to insert a proxy device? For example, I imagine I2C would be very easy to ...
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1answer
134 views

Methods of cold boot attacks in the wild

As far as I know, there are two methods for performing cold boot attacks: Reboot the system into an alternate operating system or BIOS with a minimal memory footprint which automatically exports ...
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2answers
223 views

Magnet to wipe HDD [duplicate]

This question is for HDD, not SDD. Would a Neodymium magnet like this one be strong enough to wipe the contents of a hard disk drive? How long would such an act take to destroy any data so it's not ...
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1answer
69 views

Which forensic disk image format should be preferred?

I want take a forensic image of an hard disk. However I am a little confused on which format should I take the image. DD (raw) or E01? What are the advantages and disadvantages of each?
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How to extract windows event logs from a hard disk forensic image?

I have created an image of hard disk using FTK imager. I want to extract the windows event logs. The system was running windows 7. What should I do?
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0answers
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Do Android Security Measures Work on an Unlocked Bootloader?

Let's assume we have an Android device with: Unlocked bootloader Full Device Encryption Password lockscreen Will Android security measures (FDE and password lock) still be able to prevent data ...
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1answer
72 views

Detect PC Boot from Live CD

is it possible to detect a boot-up via live CD (eg. Ubuntu, Debian, Tails ...) that happened in the past? If yes, where can this information be obtained? I suspect my PC has been booted through a ...
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How to know who and when files and folders have been deleted in CentOS? [duplicate]

I have a dedicated web server and there is some files and folders have been deleted from my client's sub-domain accidentally and there are more than one user mange the client site. How to know who ...
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1answer
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How can I secure the state of a compromised iPhone for evidence of evil before resetting it?

I'm a web developer and generalist programmer with a bit of mobile experience. A friend of my wife is being stalked by a guy she was dating briefly and dumped over a month ago. He has somehow (not to ...
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2answers
123 views

Need some recommendations on good IR hands-on training

Does anyone know if there is any good hands-on training for incident response and digital forensics, or certification I need to take in order to gain more hands-on experience? Thanks and any helpful ...
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1answer
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Can VPN,proxy servers and TOR evade/remove Browser Fingerprinting in terms of anonymity? [duplicate]

If not what are other ways to beat browser fingerprinting?Thank you.
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Linux equivalent to Windows WriteProtect key in the registry for a software based write blocker?

I unfortunately don't have access to a physical write blocker and am looking for a software based write blocker in Linux. In Windows this can be achieved by modifying the registry and setting a DWORD ...
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163 views

Android Protection against Cellebrite UFED

I have been scavenging the Internet (meaning, primarily, XDA, Reddit, and security.stackexchange) for information on methods to keep Cellebrite UFED out of a phone. It is a mobile forensics tool that ...
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1answer
27 views

Alternative to retrieve zip crypted content to brute force [closed]

I ended up a few years ago ( maybe 3) to crypt some video on my usb( in order if I loose the device) the material not to be accesible. Hoewer it is not possible for me now to ...
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Do USB flash drives delete a sector before writing to it?

I know that SSDs can't write to a non-empty sector, so must delete it first (and even support TRIM which resets them automatically after deletion). HDDs on the other, write to sectors before reseting ...
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0answers
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Does erasing slack space ever make sense on flash-based storage?

Slack space appears when a file written to the disk does not occupy the last cluster entirely. For example, if I write a 512B file on the HDD formatted with 16KB clusters, only a single 512B sector ...
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Access android internal storage for full passive deep malware scan?

Is it possible to passively (with a computer) view/scan all content on an android mobile device's internal storage without crackopen/damaging it? For a deep malware scan of the whole storage of the ...
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161 views

How long would a computer have to be off to be resistant to a cold boot attack?

I understand that the longer a computer is off, the more resistant it is to a cold boot attack. I also understand that an AES key can be reconstructed from a redundant round key schedule even after a ...
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2answers
207 views

How to determine if JPG EXIF data has been changed by “OEM” software (without third party tools)?

I have a JPG and I am analyzing it to determine it's efficacy. The image metadata clearly indicates that the image was digitized at 15:10:13, Dec 31, 2015 and I need to determine if this date ...
4
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1answer
141 views

Create memory dump from the windows commandline

I was following this blog post to dump the memory of a windows host. Sadly this method does not work on Windows Server 2012 because the memory drivers that come with mdd aren't signed and this is ...
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2answers
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How likely is it to find valuable information in the slack space of a workstation?

I just read about slack space which is the unused space at the end of a sector. This space is unused in some sectors when either the file itself is smaller then the sector or the sector contains the ...
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1answer
106 views

Can a rootkit hide processes from “Volatility” or other memory forensics tools?

I know that a rootkit can hide processes from the OS by fooling around in the userspace. But can a rootkit also modify a processes metadata in a way that it won't even be recognized by a RAM forensic ...
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2answers
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Can forensic investigators find my webmail emails in my laptop?

When I send an email using the web interface of Yahoo Mail or Gmail, can the email can be found somewhere (even if encrypted) on my laptop by forensic investigators? Somewhere on my hard drive or RAM? ...
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1answer
61 views

How can I check whether file modified time has been spoofed on ext4?

On Debian based system (Ubuntu 14.04.3 server specifically), using ext4 filesystem. How would I discover if files have been changed, but the modified times have been made to look like the files have ...
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1answer
47 views

Regarding computer forensics and forensic accounting [closed]

I feel that these 2 forensic fields should work hand in hand. However, I do not have a background in computer science, but would like to upgrade myself to enhance my knowledge in this field. There ...
3
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4answers
64 views

Retrieving passcodes through forensic discovery

If you encrypt a device using a passcode, the data stored on the device cannot be retrieved using forensic discovery. What about the passcode itself? Is that encrypted too? Can forensic analysts ...
4
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1answer
118 views

How often should I check for unknown open ports

I wan to run a cron job on each of my hosts that sends a list of all open ports to a central db on which I will run auditing and forensic queries. My question is how often should this job run so I ...
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1answer
231 views

WhatsApp Forensic Analysis [closed]

I was wondering if anyone is aware of any conferences that cover WhatsApp security on android or something similar. My project requires me to look for three conference papers and justify why they are ...
3
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2answers
106 views

The UK Terror Watchdog says this is very difficult in practise, is it?

I saw this quote today in the Guardian David Anderson QC, the terror legislation watchdog commissioned to report on the state of Britain’s surveillance laws in the aftermath of Snowden’s ...
5
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1answer
103 views

Is the content of my RAM kept if the OS is shut down but the PC is still running?

I just asked myself if the content of my RAM is kept when I shut down the OS but the PC is still running. For example when I do apply updates they sometimes require a reboot. Is the informaiton that ...
4
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1answer
527 views

Convert raw memory dump into a format recognized by volatility

I dumped the RAM of a Windows 7 pc using LiveKd which basicly worked. The memory was dumped but then the convert of the binary dump into "summary format" failed. When I then tried to read the file ...
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3answers
84 views

Decrypt SSL Connections established by a Host I have adminsitrative privileges on

I want to decrypt a SSL connection that is established by an unknown binary file on a Windows 7 Computer. This binary doesn't exist on any other computer on our network and establishes SSL encrypted ...
3
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1answer
82 views

Can I tell Linux not to swap out the data space of a specific process?

I need to be able to write a program that uses a secret value that I want to ensure never gets written to disk during a page swap. The value is securely entered when the program starts, and gets ...