Ransomware Revival: Troldesh becomes a leader by the number of attacks

Group-IB, a Singapore-based cybersecurity company: ransomware accounted for over a half of all malicious mailings in H1 2019, detected and analyzed by Group-IB’s Computer Emergency Response Team (CERT-GIB), with Troldesh being the most popular tool among cybercriminals. To bypass antivirus systems, hackers send out malicious emails in non-working hours with delayed activation. More than 80% of all malicious files were disguised as .zip and .rar archive files.

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