Cryptojacking can be simply understood as employing other computer’s processing power to mine for cryptocurrencies without the owner’s consent or information. The McAfee reported of over 4000% specifically referred to total instances of a cryptojacking malware, brought up within the study as “Coin Miner.”
The ‘report‘ extends to a spread of crypto mining malware threat vectors, that notably embrace a spike in new malware targeting Internet of Things [IoT] devices:
“New mining malware targeting IoT devices has grew around 72%, with total malware growing 203% within the last four quarters. New coinmining malware gas grew nearly around 55%, with total malware growing 4,467% within the last four quarters.”
The report further added, the increase in IoT-targeting threats is somewhat shocking, given the low processing power of the devices. Yet, the report continues, “cybercriminals have taken notice of the growing volume and lax security of the many IoT devices and have begun to specialize in them, harnessing thousands of devices to form a mining super-computer.”
The security Analyst at McAfee ‘Remco Verhoef,’ conjointly outlined the workings of a ‘MacOS‘ crypto mining malware threat — later dubbed OSX.Dummy — that was distributed on mining discussion groups. The threat actor reportedly instructed to users on Slack, Telegram and Discord channels that they need to download software “to fix crypto issues.” This software — that is in fact faux — then “executes within a single line in Bash”:
“The users primarily infected their own devices rather than falling victim to an unknown exploit or an exploit kit. In execution, OSX.Dummy opens a reverse shell on a malicious server, providing attacker access to the compromised system.”
According to an earlier report revealed by McAfee Labs indicated that cryptojacking rose by a staggering 629% within the Q1 of 2018 alone. This month, analysis from cyber security research firm Kaspersky Labs revealed that cryptojacking has overtaken ransomware as the prime cybersecurity threat in some parts around the globe.