A file system is a way of organizing information on a storage device like a computer hard drive.

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How to minimise risk to sensitive data in temp files in shared hosting environment before encryption?

openssl_pkcs7_encrypt() requires the data to be encrypted to be read from a file and so unfortunately it requires sensitive data to be written to temporary file before being encrypted. In a shared ...
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437 views

best practice for encrypted filesystem inside a file

This is an extension of my question on UNIX. Let's suppose I create a file, map it to /dev/loop0, and create a LUKS partition inside dd if=/dev/zero of=myfile bs=1M count=1000 losetup /dev/loop0 ...
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Why can't just any program use his own file-system-access-system?

This may sound stupid for everyone who knows more than me about the UNIX-System and security in software: Imagine you have a program trying to cause harm by deleting files. You just do something like ...
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222 views

Uploading Executable Files

Using proxy software, I was able to bypass a file upload control file-checking for an asp.net system I am pen testing. I noticed they are saving the file into the database as bytes, and it is ...
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1answer
112 views

Best way to secure file removals in Windows remotely

I have Windows 2008 R2 box on colocation. I want to remove certain files with a high degree guarantee it cannot be recovered from physical HDD access. Could someone please explain what levels of ...
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Are there any artifacts for filesystem forensics in memory?

I have a memory dump. I know it is infected by a rootkit which uses its own file system installed at the end of the disk. Can there be any artifacts in dmp file to show this?
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727 views

What does Gazzang zNcrypt actually protect against?

In an effort to increase security of our website, I'm reading up on Gazzang zNcrypt, which claims to protect data in databases from breaches. Technically, it seems to do filesystem encryption. As far ...
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44 views

How much access to the file system does the recent Drupal vulnerability give?

A friends drupal site was hacked. What is strange is that the root directory of the installation at the hosting company (let us call it rootdir) was copied (or renamed) rootdir_hacked and the ...
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67 views

Finding artefacts of software

I was wondering if there is an established way to tell what running a particular program on a system might leave behind (in terms of changes to a filesystem, such as in Linux). I am thinking of this ...
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External hard drives: 'date last accessed' file?

I'm trying to figure out if there's a way to figure out when files on my external hard drive were last opened. I'm using a Seagate Backup Plus, and it's both mac and PC compatible. BUT, I've also read ...
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Repair Truecrypt NTFS-partition with undetectable filesystem [closed]

Long story short: Got 1 TB HDD. Created one fullsized (non-system-)partition on that. Encrypt via TC. One time, via boot, Win presumably formats that (and maybe writes some bytes on it). I manage to ...
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Free space shredding

I'm an avid fan of file system forensics but I'm an amateur so far. I've been reading up on NTFS forensics and I've noticed you sometimes can know if a file was on a certain volume even if it was ...
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Are file permissions set in Unix/Linux effective in Windows or Any other OS?

Consider some files and folder in Unix/Linux OS which are configured for only read access by root, if the hard drive stolen, and used in Windows Environment, are these permissions are still effective? ...
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Can a computer's contents be downloaded wirelessly?

So my calculus teacher, who also teaches computer science, claims that a computer's entire filesystem can be downloaded wirelessly by anyone on the same network? As a Ruby on Rails professional, ...
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2answers
39 views

Safely generate a non-log file within an application server

How does one go about safely write a temporary file to a location within an application server that is publicly accessible?
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1answer
195 views

is there any program that can tell me which files have been transferred from my computer thru the web

Is there a program that can tell me which files have been transferred from my computer thru the web? So if I have virus on my computer that transfer files I will know about it according to the files ...
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Considerations for using in-memory file system in a Java web application?

I was reviewing some code for a Java based web application accessible by authenticated users. It used the file system to work with temporary files, some of which have sensitive data. The input is a ...
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1answer
133 views

Secure distributed storing and querying of [medical] data?

Comparing ways of distributing and securely storing and querying structured and schemaless data. Currently I am using MongoDB, but am looking into (Postgres|MySQL)&CryptDB, Cassandra and others. ...
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Files deleted by some Employee . How to find what time it happened and whether done from another computer on network? [closed]

My Files got deleted by any Employee . How to find what time it happened and whether done from another computer on network ? The files were in shared drive in the computer. I am using windows 8. What ...
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1answer
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How does one find out the file system / directories structure of a webserver they don't own? [closed]

How does one with simple access rights find out the remote host directory structure? I see that web archives are able to not only backup content on the specified domain, but every folder within it.
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867 views

Can File Sharing being Controlled by Mac Address? [closed]

I am currently setting up secure environment between 2 pc in isolated network. Just wondering can we do file sharing based on that pc mac address instead of username? The environment is OEM Windows ...
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1answer
132 views

Would this be plausible for a metamorphic virus? Not repeatedly infecting same system

Would this be plausible for a metamorphic virus? When a new generation (for lack of better word) is created it would hard code a random file name, that would be checked to see if the system was ...
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360 views

What role does paging play in respect to security?

What role does paging play in respect to security? By paging I mean memory management technique of splitting file memory into pages I guess the question is does it make files more secure?