Gramblr Instagram photo uploader and malware botnot no longer available
Instagram intentionally makes it very difficult to upload photos from a PC. Instagram wants everything to be smartphone-centric. Many people use a variety of tricks to get around this upload problem including processing photos on their PC or Mac and then transferring them to their phone or tablet for upload using the Instagram app.
Because of this (dumb) limitation of Instagram, users wanted an easy way to upload photos from their PC. A malware company developed Gramblr as an easy way to upload from your PC. Their software was very sophisticated on many levels, one of which was that it secretly viewed Youtube videos behind the scenes each time you upload a photo to Instagram. Their business model was to sell Youtube video views and likes, and to deliver those views through the Gramblr bot net.
As of the summer of 2019, Gramblr has disappeared and their website is gone. The Gramblr botnet has been shut down (or at least no new users will get infected).