Intelligent CISO Issue 04 | Page 35

Cryptomining malware is now by far the most common event we are seeing attacking our user base and this is only the beginning . small bitcoin transactions with weak ‘ brainwallet ’ produced keys . These keys are created from a passphrase that a human can remember but are much less secure against brute force attacks or guessing the passphrase .

PREDICTIVE
INTELLIGENCE

Cryptomining malware is now by far the most common event we are seeing attacking our user base and this is only the beginning . small bitcoin transactions with weak ‘ brainwallet ’ produced keys . These keys are created from a passphrase that a human can remember but are much less secure against brute force attacks or guessing the passphrase .

Castellucci reports that such transactions were hijacked instantly when using random five-character passphrases .
Such efforts by cybercriminals can lead to massive botnets moving into the field of key-breaking and utilising mass computing resources for stealing funds directly from the wallets of those that have already mined or bought them , instead of going to the trouble of mining the currency themselves . It seems digital wallets are just as vulnerable as their physical equivalents .
In conclusion , cybercriminals have yet again been quick to innovate in the use of emerging technologies .
We expect this wave of mining malware to keep growing and be a major source of innovation and revenue for attackers in the coming years – and a growing problem that the security industry needs to address . u www . intelligentciso . com | Issue 04
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