I provide blockchain/bootstrap for Bitsend updated with the last blocks at 468625 (Tuesday,  1^st May, 2018). my bootstrap has no virusses and 100% clean, you can check it after downloading.
bootstrap.dat: https://drive.google.com/open?id=17se27wMM4gyvMfx84NEh2jkDUgAuP2WA
blockchain folder: https://drive.google.com/open?id=1rSzdM0AHzw2TCIY0t9tZKXgpBG9LV4Nt

 
how to use?
using bootstrap.dat

• download bootstrap.dat.zip of Bitsend using link above
• uncompress bootstrap.dat.zip
• Move bootstrap.dat to the wallet data directory using copy/cut - paste. It's usually at %appdata% on windows (ex: %appdata%\bitsend) or $HOME on linux (ex: $HOME/.bitsend)
• run your wallet
• Wait until 100% sync
• finish

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using blockchain folder
it's very simple  

• download and uncompress it
• move bitsend folder from the download in %appdata% (if using windows, ex: %appdata%\<--paste-->) or $HOME folder (if using linux, ex: $HOME/<--paste-->)
• note: if you using linux don't forget to rename the folder bitsend from bitsend  to  .bitsend
• run your wallet

 
the similar post you can see at https://bitsend.info/forums/index.php?topic=418, the updates are going to post to there

be useful, thanks