In 2018, KrebsOnSecurity unmasked the creators of Coinhive — a now-defunct cryptocurrency mining service that was being massively abused by cybercriminals — as the administrators of a popular German language image-hosting forum. In protest of that story, forum members donated hundreds of thousands of euros to nonprofits that combat cancer (Krebs means “cancer” in German). This week, the forum is celebrating its third annual observance of that protest to “fight Krebs,” albeit with a Coronavirus twist.
For the second year in a row, denizens of a large German-language online forum have donated more than USD $250,000 to cancer research organizations in protest of a story KrebsOnSecurity published in 2018 that unmasked the creators of Coinhive, a now-defunct cryptocurrency mining service that was massively abused by cybercriminals. Krebs is translated as “cancer” in German.
A story published here this week revealed the real-life identity behind the original creator of Coinhive — a controversial cryptocurrency mining service that several security firms have recently labeled the most ubiquitous malware threat on the Internet today. In an unusual form of protest against that story, members of a popular German language image-posting board founded by the Coinhive creator have vented their dismay by donating tens of thousands of euros to local charities that support cancer research.
On Monday KrebsOnSecurity published Who and What is Coinhive, an in-depth story which proved that the founder of Coinhive was indeed the founder of the German image hosting and discussion forum pr0gramm[dot]com (not safe for work). I undertook the research because Coinhive’s code primarily is found on tens of thousands of hacked Web sites, and because the until-recently anonymous Coinhive operator(s) have been reluctant to take steps that might curb the widespread abuse of their platform.
Multiple security firms recently identified cryptocurrency mining service Coinhive as the top malicious threat to Web users, thanks to the tendency for Coinhive’s computer code to be used on hacked Web sites to steal the processing power of its visitors’ devices. This post looks at how Coinhive vaulted to the top of the threat list less than a year after its debut, and explores clues about the possible identities of the individuals behind the service.