0
votes
2answers
104 views

Fake phone call

I have a problem, getting call from known numbers and when he lifts it, no one is speaking from other side! Well, the awkward part is, the call is from known numbers only, but if I ask the person ...
1
vote
1answer
108 views

Efficacy of self-made ransomware protection

I was recently wondering about how to circumvent malware such as the infamous Cryptolocker a while back and was wondering about the efficacy of having a set of files with known content in a known ...
4
votes
1answer
142 views

Why run ondemand scanners in failsafe mode when the virus could have encrypted itself?

The internet is full of guides of how to remove malware on already infected computers. Normally, step 1 is to enter failsafe mode, so that the virus can't interfere with the anti-virus program that ...
1
vote
1answer
103 views

Android's Encryption mechanism

Well, according to my Android smartphone, it says the phone has been encrypted. Should I be worried if it has a malware or if I get hacked because I once clicked a link on a certain website then I ...
0
votes
1answer
165 views

Mac OS: keylogger vulnerability & FileVault 2

I'm configuring my mac and encrypting my disks with FileVault 2. As the boot disk is encrypted at startup I have to login via the EFI partition before the OS will boot. From my understanding, most ...
3
votes
1answer
383 views

Why does broad based malware use XOR obfuscation?

As per title... The malware can easily be de-obfuscated if it was obfuscated using common and known XOR techniques. Why don't malware authors use any other method that make it much harder to ...
9
votes
3answers
631 views

Reason for writing Self-Decrypting Virus

What is the rationale behind writing a self-decrypting virus? By this I mean a virus that has it's payload encrypted, decrypts at runtime and runs it. How does this protect the virus from antivirus ...
9
votes
1answer
1k views

How to study the packets sent by a keylogger

One of my friends runescape account got hacked through key-logger. He downloaded a runescape gold generator from a file sharing site and tried to use it. I have a strong doubt that it is a key-logger. ...
4
votes
2answers
440 views

What is disk encryption worth? Threat of proprietary Bios, SMM, optionrom, TPM etc?

Supposing there is private/secret data on a machine (i.e a x86 arch) the most reasonable thing to me would be to encrypt this data, so to protect it. I understand that the purpose of ...
9
votes
4answers
1k views

How would you analyze an image to find out if there are scripts embedded in it?

How would you analyze an image to find out if there are scripts or possible malware embedded in it? What tools / methods to use?