WannaCry

Opinionated · May 16, 2017

So, recently WannaCry ransomware has spread crazy fast. I've been in charge of preventing my schools servers from it.

I've been able to prevent this easily, by closing ports 135 and 445. But I want a copy of it to personally see what is going on in the ransomware and how it is being encrypted.

From what I've heard, it is using RSA-2048 encryption, but I haven't seen so myself.

WannaCey is also just another reason that Linux is infinitely better than Windows.

Anyone, either share opinions or info on WannaCry or supply me with a download link!

Thank you!

clasick · May 16, 2017

Check out the site @ nomoreransom.org

And here's how it works:

TheVigilante · May 16, 2017

clasick said:
Check out the site @ nomoreransom.org

And here's how it works:

They seem to have decryption tools available...wonder how effective they are...

clasick · May 16, 2017

abhi007 said:
They seem to have decryption tools available...wonder how effective they are...

At this age, maybe none of em are effective.

Information @ digicert.com/TimeTravel/math.htm on Just How Strong is 2048-bit SSL Certificate Encryption?

In order to "break" an RSA key based certificate like those provided by DigiCert, one must factor very large numbers that make up the RSA modulus. A certificate is considered "cracked" when the computer utilized reaches the average probability of time to factor the RSA modulus associated with the key in the certificate (in other words, it could happen in year 1 or it could happen in year 6 quadrillion, and the average would be half the time it eventually takes to efficiently try all

Even at Brute force it still takes infinitely longer

this is a 232-digit number, and was at the time (and potentially still is) the record for factoring the largest general integer.

RSA Labs claim that 2048-bit keys are 2^32 (2 to the power of 32) times harder to break using NFS, than 1024-bit keys. 2^32 = 4,294,967,296 or almost 4.3 billion, therefore breaking a DigiCert 2048-bit https://www.digicert.com/ssl-certificate.htm would take about 4.3 billion times longer (using the same standard desktop processing) than doing it for a 1024-bit key. It is therefore estimated, that standard desktop computing power would take 4,294,967,296 x 1.5 million years to break a DigiCert 2048-bit SSL certificate. Or, in other words, a little over 6.4 quadrillion years.

One way or another this occurrence is inevitable in the early era of the digital age.

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