Computer forensics works to analyze information on computer systems in an attempt to find evidence regarding certain actions to achieve certain goals.

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33
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6answers
63k views

Can wiped SSD data be recovered?

I was reading another post on destroying IDE drives, and how you could remove data, wipe it, or just destroy the drive. The removed data would still be there in some state, although not easily ...
52
votes
5answers
60k views

Detecting Steganography in images

I recently came across an odd JPEG file: Resolution 400x600 and a filesize of 2.9 MB. I got suspicious and suspected that there is some additional information hidden. I tried some straight forward ...
11
votes
3answers
3k views

How to recover securely deleted data

Since we all know files are recoverable with programs after being deleted from the recycling bin, everyone is told to do secure wipes by putting random data over the files you're deleting on the disk ...
6
votes
3answers
617 views

Appropriate defense for 404s in my logs - persistent web scans from one region

This seems to be a fairly easy question to figure out, but I wanted to make sure. I've got about a thousand entries on one of my web servers with phpmyadmin in the connection criterion, but as I ...
2
votes
5answers
3k views

Prove that you deleted the file

Is it possible to prove a date that you Deleted a file through the recycle bin? I delete a folder of pictures 2 months ago and somebody is asking to prove that I did it.
15
votes
1answer
2k views

What should be included in a jump bag and how often should it be reviewed?

What items should be included in a jump bag? How often do you review your jump bag?
19
votes
3answers
4k views

Techniques for ensuring verifiability of event log files

Bit of newbie at the whole forensics stuff - but I'm trying to find out what I should have in place before an attack. While there is no end of material on the internet about forensics from seizure ...
11
votes
2answers
8k views

Why is it so hard to close onion domains (e.g. The Silkroad)?

A few months ago when I started to experiment with bitcoin I came across The Silkroad (only accessible via Tor) For those who do not know what Tor is and who do not want to waste their time ...
10
votes
6answers
50k views

Scanning for files than have been encrypted by CryptoLocker

I am just asking in case someone has already done the analysis. A customer has a large set of network drives that were mapped to a CryptoLocker infected machine. The infection itself has been treated. ...
4
votes
2answers
369 views

What data is not encrypted in iOS 8+ when “locked”

Scenario: iPhone 5+ with iOS 8+ with system encryption enabled. The phone is on and locked. (the user has authenticated (unlocked phone) at least once since power-up, and then relocked). What ...
4
votes
1answer
314 views

Distance Education Programs in Digital Forensics

I am looking for a distance education program with the end product being a Masters of Science in Digital Forensics. I looked through the site and did not find any results, and was hoping since most ...
5
votes
1answer
368 views

Can DD on its own be used to acquire a hard drive?

If a hardware blocker cannot be acquired could an investigator use DD without a write blocker, would that be forensically sound?
3
votes
8answers
9k views

Is it possible to prove a certain email has been sent using a certain computer?

I can understand that an SMS can be traced to the mobile phone which it has originated from and the phone owner has no chance in court but to claim that someone else has used his phone but what about ...
9
votes
4answers
4k views

How does forensic software detect deleted files

How does forensic software detect deleted files? When a file is deleted, the pointer from MFT in NTFS system is deleted and the file is no longer accessible from the OS. If our disk is fragmented how ...
8
votes
1answer
155 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 ...
8
votes
1answer
511 views

How can I secure my log files?

I have a cool tool that displays my syslog and kernellog on my mac's desktop. This has me concerned about what is written in them - I'm staring to feel like they are creating a hole in my privacy. I ...
5
votes
4answers
7k views

Is it possible to recover securely deleted data from H.D.D using the forensics?

I just want to know if it's possible to recover and see securely(or wiped out) deleted data from H.D.D using forensics ? Imagine police have arrested a hacker and that hacker,before getting ...
1
vote
3answers
13k views

How to trace malicious hackers?

What are some of the ways law enforcement agencies can trace a hacking attempt back to the hacker? IP and MAC addresses can be spoofed easily, hackers can easily hide their tracks using compromised ...
4
votes
3answers
129k views

How to detect if files were saved or copied to a USB drive?

How can I find out if files from my computer were written/copied/moved to a USB storage device? I want to know if there is a solution that would work in a system that has not got any ...
7
votes
3answers
896 views

How to find passwords in memory (password managers)

I’m trying to figure out if password managers such as last pass store passwords in plain text (or hash values that can then be decrypted with the master password) in memory after a user logs into the ...
15
votes
2answers
2k views

Can it be proved that two CDs were burned by different computers?

A friend of mine made a personal data CD. Days later he found a copy elsewhere. He wants to prove the copy didn't come from his computer, but that someone took the CD and copied it from another ...
5
votes
2answers
334 views

How to evaluate the damage after being hacked [duplicate]

It's well known what measures one should take to prevent hackers from hacking their PC. But are there any steps that allows a user to evaluate the damage done by a hacker? Say that I know for sure ...
8
votes
3answers
2k views

How to manually check for rootkits on a server

Does anyone have a general step by step list on how to try discover rootkits on a Linux or Solaris server? I'm looking for to to manually find the rootkit, not by automated software. For example: ...
5
votes
2answers
703 views

Forensics after web server compromise

I was using sftp to give access to clients to certain folders so that they could modify their apache virtual hosts as desired. Until someone uploaded a php backdoor and erased all virtual hosts :). ...
4
votes
2answers
1k views

How do I run a security check on my WordPress server?

I have a cloud-based server running with CentOS 6.0 and CSF installed. Today I got a message from my host that one of my WordPress installations is hacked and used for phishing. But I don't know how ...
4
votes
1answer
204 views

Data analyzer tools [closed]

I have to find information that can be located in files on a hard drive. Are there good tools to search for specific keywords (even in the hard disk free space area ;-), detect encrypted files, detect ...
1
vote
1answer
110 views

The use of SHA-1 in a cyber forensic

Let's say a hard disk (A) is retrieved from a system to make a clone of it on hard disk (B) and use this clone for a forensic investigation. Is SHA-1 secure enough to make sure that no other ...
6
votes
8answers
4k views

Retrieving OSx Keychain passwords

I have a computer forensics style osx login.keychain file that I am trying to find the passwords from. I have a very weak mac which I used crowbarkc on to try and brute force but the horsepower is ...
4
votes
5answers
3k views

How can I find the source of traffic allegedly originating from my IP address?

I have a problem that has been going on for at least 6 weeks. I have Time Warner for my Internet provider and some websites hosted at GoDaddy. From what GoDaddy tells me the reason I can not view ...
4
votes
5answers
4k views

Is running an erase tool after an OS install sufficient to ensure no data from the old install is recoverable?

How secure do you consider this process? A drive has data from a previous OS installation. A new OS installation is made on the drive, and Heidi Eraser is run on free space. What are the chances ...
3
votes
1answer
549 views

Forensics - trace back DNS query origin on host?

So I tried to search the web for answers but didn't find any. Is there any way to trace back which exe file or application caused the computer to make a specific DNS query?
2
votes
1answer
217 views

Can linux (be made to) detect foreign connections to the ram bus?

I've been made aware on many answers and some comments that an attacker can read memory while a system is still running by attaching some sort of connection directly to the ram bus. Can linux ...
1
vote
2answers
384 views

How to remove meta and sensitive data from PDF file?

I've some PDF files generated from different sources (such as web-browser, Photoshop, etc.) on Unix. How do I make sure PDF doesn't contain any sensitive information such as IP address, OS, user ...
1
vote
1answer
224 views

Mitigating TrueCrypt Attack Vectors in Memory and System Cache

While browsing PasteBin today, I noticed a new Paste that outlined approaches to compromising TrueCrypt protected data, as well as full Keys, Encryption Schemes, Plain-text Files, and Volume Names ...
0
votes
1answer
166 views

Can plain text be hidden/accessed in laptop Firmware? (or elsewhere, not HDD/SSD)

Scenario: I just took 1 page of text (.odt) and copied it into a plain text document, that happens to result in a 3KB file. With that as a random size criteria for discussion, CAN code be written to ...