It was initially titled "BitcoinBlackmailer", but later came to be known as "Jigsaw" due to featuring an image of Billy the Puppet from the Saw film franchise.

[4] Following this, a popup featuring Billy the Puppet will appear with the ransom demand in the style of Saw's Jigsaw (one version including the "I want to play a game" line from the franchise) for Bitcoin in exchange for decrypting the files.

[2] Any attempt to reboot the computer or terminate the process will result in 1,000 files being deleted.

[5] A further updated version also makes threats to dox the victim by revealing their personal information online.

[1] The Register wrote that "Using horror movie images and references to cause distress in the victim is a new low.