Moonstone Sleet, a cybercrime group tied to North Korea, deploys trojanized versions of PuTTY and SumatraPDF via LinkedIn, Telegram, and freelancing platforms to launch attacks against specific targets.
Moonstone Sleet developed the ransomware strain FakePenny and demanded $6.6 million in a recent attack on a defense technology company, marking the group's shift to more lucrative ransom demands.
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