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C# Wana Decryptor 2.0 Dummy

tom982

Senior Administrator, Windows Update Expert
Joined
May 31, 2012
Messages
4,357
Location
New York
With the recent WannaCry outbreak, I decided to conduct a little test on my family to see if they would open an email attachment from me with a .docx.exe 'extension'. I knocked together a quick Wana Decrypt0r 2.0 clone that would display a message after 10 seconds, which should be long enough for the panic to set in without them doing anything drastic.





It has a Word 2017 icon so it should look the part.

Not sure if anyone else here will find a need for this, but I'm sharing it in case someone wants it. It's 100% safe, just a GUI and nothing else.

View attachment 26321
View attachment WanaTest.exe.zip

Will post the results tomorrow :)

Edit: Underestimated the protections in Outlook, could be a bit harder to do this. I'll update this post when I fix it.
 
Last edited:

AceInfinity

Moderator, Programming, Contributor
Joined
Feb 21, 2012
Messages
1,729
Location
Canada
Nice, I think there needs to be an outbreak of tests like this to prepare the average user for things like this because email-based viruses have been around for ages and unfortunately are still (apparently) a reliable method of spreading viruses.
 

tom982

Senior Administrator, Windows Update Expert
Joined
May 31, 2012
Messages
4,357
Location
New York
Don't suppose you have a spare 0-day? :p

Haven't yet tested this, but hope to this week. I didn't realise Outlook blocked .exe files, so I've had to make a spreadsheet with a macro to download and execute the file from my server. Windows Defender only catches the exe (Heuristic Win32/Fuery.A!cl) after it's executed... great protection huh. Any future time the macro is run, the exe is deleted before being executed.

Just need to come up with something to fill the spreadsheet with to convince them to click the "Enable editing" and "Run macros" buttons, without being at all targeting.
 
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