That is a very big question tiger.I can't answer that as my computer picked it up on Wednesday June 22 at 3.22PM. I was at work at that time.I didn't discover it until Friday the 24th.
The most common way to get it is through a spam email that has a word document in it that usually comes up with a name of "invoice".Which will look something like the picture below.
Now we all know about opening emails that are zipped up or an .exe file,but until recently nobody realized about doc files.
In that 50 KB document there is a hidden .exe file.Up until the February update it wanted you to click the options button in the picture below,which then activated,but the updated version I got I believe it doesn't need that process.
Once that document is activate the ransomware (in the background) installs it's self.Immediately once it is installed it then sends a request to it's server to receive the rest of the files (and the encryption key it will use) it requires to complete it's installation.
Now this ransomware was updated on Tuesday February 16th 2016.
While ransomware infections had been detected at a rate of between 10,000 and 15,000 per week in January and early February 2016, the number began to rise, coinciding with Locky�s appearance on February 16, and detection's stood at more than 20,000 in the week leading up to March 8.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2016/08/full-5048-29523-locky_graph.jpg)
As you can see above the amount of infected computers was on the rise.
One of the most recent emails came through as a subject name of �Scanned Image�.
There has been some talk about certain web sites also sending a small file to start the infections,but I can't retrieve that information as that was pages found on the deep-web and currently I haven't got an os safe enough to go into the deep-web.
I'm sure that most sites that have any info on this haven't been updated since late February or earlier march.
I know over time they will change the way it is executed and these mongrels are getting away with it and making easy money.The more people that pay the more they will develop it.
This image is a threat Scorecard,just to show you the level of the threat.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2016/08/full-5048-29525-threat_scorecard.jpg)
I'm sorry to go on about it.I just don't want anyone else to get it it really is a mongrel of a thing,and it is a real problem.
So hopefully if you guys are aware of it and what and how it's starts at least when you see it pop up you know to delete it.
Also don't forget a good Anti-Malware software as Anti-Virus won't detect it.
Hope this helps protect you guys.