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New ransomware variant has BlackCat-like similarities, report says

ID: bd6b8398-63b0-5682-9d34-9368aaec00c1

STIX ID: report--bd6b8398-63b0-5682-9d34-9368aaec00c1

Feed Name: CyberScoop

Threat Score
75/100

Date Published: 2024-09-03

Date Updated: 2026-04-21

Author: Christian Vasquez

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A new Rust-based ransomware strain calling itself Cicada3301 has been observed in the wild and is reported to share technical characteristics with BlackCat/ALPHV. Morphisec disrupted and reversed at least one attack; a public leak site lists over 20 victims (mostly small- and mid-sized businesses, including healthcare and manufacturing) across North America and the UK. The malware is described as advanced — able to tamper with endpoint detection and to follow symlinks for further encryption — while attribution remains unclear and the group name is being disavowed by parties linked to the original Cicada 3301 puzzle.

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