Questions tagged [forensics]

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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55 views

How to do a post-mortem after being hacked [closed]

I am wondering what the general steps are in retrospect for trying to find out how one ends up being hacked. A couple of times I have had Linux servers that ended up being hacked. I noticed this in ...
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Identifying the method which an attacker used to harvest important account credentials, while the security logs are deleted

Is there a way to spot the method which an attacker used to do all of the necessary credential dumping, or stealing/forging tickets/using pass-the-hash/ticket techniques, if we don't have access to ...
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43 views

Can voice analysis be used to determine if voice samples converted in two different ways are from the same person?

Suppose we have two voice samples, A and B, which are converted from the same person's voice into different voices respectively by a voice changer. In addition, let us assume that the voice conversion ...
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117 views

How do I get a forensic copy of an EC2 server?

Is there a point-and-click way to generate a forensic image of an EC2 system, rather than having to ssh on and dd?
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Create memory image of infected machine without risk

I am pretty new in the security world and I am writing a procedure on how to create a memory image of an infected machine for forensics. The problem is that the machine does not have the tools for ...
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1answer
65 views

Memory Forensics on exited process

I am new to memory forensics. When a process in Windows is ended are all artifacts for the process in memory gone? I ask because my EDR solution gives me the local process ID of a process I am ...
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1answer
45 views

File based background data eraser

I am making a series of python scripts for data overwriting. My current prototype creates a series of large files and simply fills the memory (using a different system for additional overwrites). Is ...
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How useful are memory forensic tools for detecting active attacks (considering current devices)

Are memory forensic tools useful for attack detection? Usually they are applied after an attack has happened. You could always constantly scan a machine but this requires lots of resources and ...
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1answer
173 views

Veracrypt SSD encryption security analysis vs HDD

I have a SSD and wanted to use Veracrypt for plausible deniability and protection against any & all level attacks e.g. state sponsored, non sponsored. My goal was to use a VM and place it in the ...
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how to check a device (mouse, USB-VGA, USB-HDMI) contains no malware [duplicate]

I got my fingers seriously burnt with some garbage bought online, which was a USB-3.0 to VGA cable. It contained a driver that requested an install, that led to my computer being unstable and a few ...
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1answer
163 views

Preserving crime evidence from a website I do not own

Is there a standard procedure when it comes to preserving evidence of a crime committed on a website of a third party? Let's assume that a crime was committed on a website I visit, like defamation. ...
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129 views

Clonezilla for forensic disk image

I was wondering if it's reasonable and forensically correct to use Clonezilla for the image of an attacked machine. Since some of the commercial products are very expensive I'm turning to open source ...
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Using PEframe tool to find indicators of compromise

I try to find some indicators of compromise through the PEframe tool. Firstly, by using the volatility tool, I found out that there is a DLL file that is malicious. I checked it with the help of Virus ...
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144 views

How to donate a computer without jeopardizing personal information?

I have an old computer that is no longer working and I want to donate it or perhaps throw it in the trash. However, I don't want people to potentially get my banking account data, usernames/passwords ...
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Image Scanning vs Document Scanning — How to tell difference? [closed]

I have a project where we are asked to assume the existence of a document D on a soft page which is handwritten in ink, a jpeg file of its native photograph (image A), and another discolored and ...
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Recovering files with recovery key after double FileVault activation - is that possible?

Let's imagine I have a work macbook with ssd and I use FileVault, and the company has the FileVault recovery key. I want to make sure my data is erased and unrecoverable, what is the best way to ...
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AuditD and SysCall alerts

Given an alert rule like -a always,exit -F arch=b32 -S open -S openat -F exit=-EACCES -k access how does adding multiple SysCalls (-S) options work? When an application gets executed do all the ...
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1answer
140 views

Google Chrome folder protection during HDD forensics

Is there any protection provided by Chrome browser against HDD dump and further forensics (with volatility-like tools)? For example, is it possible to extract google profile from Chrome folder and use ...
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1answer
97 views

Can M.2 docking stations be used to make forensic images of (Bitlocker encrypted) M.2 disks?

I am looking into M.2 docking stations such as the Maiwo K3016S as shown below. Is it possible to use such docking stations optionally in combination with a USB- or software write-blocker, in order ...
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2answers
1k views

Can I safely disable and re-enable Secure Boot when Bitlocker is used in order to make a Forensic Image?

I am about to make a forensic image (using dc3dd from OSFClone) of two laptops and in this specific case I'd like to startup using an bootable USB stick with OSFClone and image the disk to an external ...
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Are the sticks of RAM in my desktop computer volatile? Is it safe to sell them?

I have two sticks of RAM in my computer that I would like to sell or donate. From what I understand some RAM is volatile, losing all its contents when power is gone for a few minutes, and some is non-...
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1answer
225 views

Data recovery from TRIMmed SSDs

Assuming a given SSD supports TRIM, and is on a physical bus that supports sending that command, and the connected computer is running an OS that is aware of TRIM: If the drive is formatted, or has ...
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What tools/checklists can help determine the presence of malicious code in a database? MS SQL specifically

Consider a scenario, where your AV / EDR software has to exclude paths of database files as suggested by vendors to avoid affecting performance or stability issues. You want to review your database ...
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1answer
313 views

Can A Picture be Unredacted? [duplicate]

I know a text can be unredacted but can pictures too? I have a picture I would love to unredact can that be done? Please and Thank you.
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1answer
176 views

What's the DRAT word of my SSD?

This article on forensicfocus.com says the following about Deterministic Read After TRIM (emphasis mine): As a result, the data returned by SSD drives supporting DRAT as opposed to DZAT can be all ...
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1answer
494 views

Does formatting an SSD securely delete all data?

This article on thomas-krenn.com states: Because an ATA trim will be performed by NTFS with Windows 7 or when formatting using Ext4 from mke2fs 1.41.10 or XFS from xfsprogs 3.1.0, the secure erase ...
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How to track anonymous email sender (alternatives to IP tracking) [duplicate]

Are there any ways to get information on who is sending certain emails from an anonymous email address? Besides the obvious IP solution, would there be any alternative such as embedding some kind of ...
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107 views

Finding NonPagedPool Start and End Address using volatility

I am exploiting bluekeep vulnerability in windows server 2008 R2 using metasploit framework. When I run the exploit windows/rdp/cve_2019_0708_bluekeep_rce, it ends in BSOD on server and then server ...
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157 views

Can someone know who created a cpp file?

I know that one can see the modification, access, and creation date of a file on Windows. And that the creation date, as well as other dates, can be modified at will. I just wonder if it is possible ...
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Is a password-protected stolen laptop safe?

Let's assume I have a Windows 10 computer and my login password has an entropy of infinity. If I did not encrypt my entire hard-drive, does it matter how secure my password is? Is it possible for ...
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What is the forensic procedure in investigating DDoS attacks

I'm currently in the process of researching for an assignment. In this assignment, I am asked to produce reports on new crimes enabled by technology and how, in Cyber Forensics, one would investigate ...
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46 views

Recovery files fails Raspberry Pi 3b

i am trying to learn something about computer security, I decided to start from the linux world, through raspberry p3 with raspbian jessie OS I would like to start with forensics file management, and ...
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How to dump the memory of a given process with Volatility 3?

It seems that the options of volatility have changed. How can I extract the memory of a process with volatility 3? The "old way" does not seem to work: If desired, the plugin can be used to ...
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43 views

How to easily browse through browser's image cache using autopsy?

I'm looking for a way to find images in all web browser cache folders. I can see a list of all images, and I can navigate folders. however, it is very time consuming if I have multiple data sources in ...
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1answer
95 views

Check TRIM space on SSD

Is it possible to 'view' the space that TRIM would take care of to see if that space was really wiped? I am using both Windows and Linux.
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1answer
73 views

Can I recover files that I had on windows from a SSD that I converted to apfs (mac) and which method or tool to use?

I had some files that I want to recover from windows, but I formatted the ssd drive to macos (apfs)? Is there a tool or method to recover those files?
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259 views

How do you find an attacker if he immediately cleans after himself?

Having an Ubuntu server with current software, updated daily, every 5 days or so someone gains root access. I know that from log watch. I search the logs for his ip and it doesn't show up. He is ...
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1answer
215 views

Can I view a user's browser history if the history/cache has been cleared?

A client wants to track a specific employee's browsing habits. Assuming that the employee knows how to clear their browser history, is there any way to recover the history so it can be read by ...
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69 views

Determining Windows version from a list of files

I have a list of files taken from a dead system, but not the actual files themselves, or any other information (e.g. properties) that would indicate the OS version. Is there a way to determine the ...
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1answer
156 views

Does Windows Device Encryption use a new key to encrypt each time?

Say I have a machine running Windows 10 with built in Device Encryption enabled. Say I want to reinstall Windows and sell the machine. I am wondering: after the format and reinstall, is a new key ...
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56 views

Booting 'live' form the hard disk

I use VeraCrypt for file-container level encryption for all of my files. But being very paranoid, I am always worried about the OS1, Primary applications and non-primary applications leaking the data....
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69 views

Destroying data on storage drives via overwrite methods really doesn't work?

I'm going to sell a computer hard drive on the Internet, it's a 500GB SATA hard drive, I really used it 3 or 2 years ago, I never used it again, I used about 20 or 40% of the space. I have read about ...
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1answer
75 views

Windows forensic files

I'd like to back up important Windows files for forensic purposes. I am aware of the Event Logs and Anti Virus logs, are there any other logs or files that have personal use information, connections ...
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125 views

Can I view the format history of a usb key?

Is there a way to view when changes were made to a USB key, such as when the USB key was formatted and/or when some files were transferred? I have seen this previous stackexchange question File system ...
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55 views

Are last access time and location of connected devices recorded in iCloud?

During a Forensic investigation, I parsed the sysdiagnose log file /brctl/Brctl-dump.txt and I discovered 50 devices connected to the same iCloud account. Is it possible to retrieve from Apple the ...
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1answer
136 views

iCloud deletion

If I delete photos which are stored in iCloud from my phone. (Which is also linked to my iPad) I know the data is then made ‘free space’ but is still on the phone In some format. If I delete it from ...
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2answers
175 views

What’s the best way to permanently delete data from your iPhone?

As the title suggests what’s the best way to permanently delete data from an iPhone. I know when you delete something, it’s not really deleted, but merely marked as ‘free space’. So how, on an iPhone, ...
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8k views

At what point is deleted data irrecoverable?

From reading around on the internet I get the impression that barring physical damage, deleted data can be always be recovered using sophisticated digital forensics. For this reason the advice is ...
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1answer
81 views

Comparing two Linux system clones - what about non-regular files?

Could you please help me to understand the best approach to compare two filesystems / hard disks? As a practical learning exercise I created a clone of whole hard drive a month ago and again ...
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272 views

How to build Linux Volatility Profiles With the Compiled Kernel

I'm familiar with creating Linux memory profiles as stated here. However, this is assuming that I have access to the live system which often times is not the case. I heard there is a way to build the ...

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