New Captcha Hidden Miner Unveiled

Users' devices are forced to mine XMR while solving the captcha
13 February 2018   1141

Hackers attack users of mobile devices based on Android again.They use well known XMR mining script Coinhive. This time, to keep users on their page longer, they offer them to solve the captcha. 

According to the company Malwarebytes, this scheme scammers have been using active since November last year. Users are being attracked to the malicious website by the ads.

Users are encouraged to enter captcha, which can sometimes be difficult due to the inconvenience of the keyboard of mobile devices. This feature is used by hackers, downloading the processors of their victims for 100% for the Monero mining.

Captcha Miner
Captcha Miner

It is noteworthy that the solution of captcha does not give the desired result - users are simply redirected to the Google homepage.

It is difficult to determine how much Monero currency this operation is currently yielding without knowing how many other domains (and therefore total traffic) are out there. Because of the low hash rate and the limited time spent mining, we estimate this scheme is probably only netting a few thousand dollars each month. However, as cryptocurrencies continue to gain value, this amount could easily be multiplied a few times over.

Malwarebytes Team

Researchers found 5 domains used in the campaign, each of which hosts the same page with the same captcha. According to their estimates, all five pages on average visit 800,000 users a day, being on them for 4 minutes.

Bitfury to Represent Bitcoin Mining Optimization Chip

The product is called Bitfury Clarke ASIC and it's based on five successful generations of mining chips
20 September 2018   137

Bitfury Group introduced a new generation of hardware for bitcoin mining under the control of the integrated microcircuit Bitfury Clarke ASIC.

Five successful generations of Bitfury mining chips are the basis for new Bitfury Clarke ASIC. According to the developers, the new chip has the highest performance characteristics among the bitcoin mining hardware.

14nm Bitfury Clarke ASIC is fully optimized for Bitcoin Mining on SHA256. The hashing capacity is up to 120 Gigahets per second (GH / s) with energy costs of only 55 miljoules per gigahash (mJ / GH). The minimum required mains voltage is 0.3 V.

In addition to selling Bitfury Clarke chips, Bitfury also integrates Bitfury Clarke into other hardware, including its own servers for mining and BlockBoxes, as well as in the mining centers in Canada, Norway, Iceland and Georgia.