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CrossC2 Framework Used to Extend Cobalt Strike to Linux and macOS

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📰 1 unique sources, 1 articles

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Between September and December 2024, attackers used the CrossC2 framework to extend Cobalt Strike's capabilities to Linux and macOS systems. The campaign targeted multiple countries, including Japan, and employed various tools and techniques to evade detection and establish persistent control over compromised systems. The attacks involved custom malware, scheduled tasks, and anti-debugging measures. The activity shares similarities with BlackSuit/Black Basta ransomware operations. The CrossC2 framework allows attackers to execute Cobalt Strike commands on non-Windows platforms, leveraging a bespoke loader named ReadNimeLoader. This loader uses a legitimate Java binary to sideload malicious code, which then executes the Cobalt Strike Beacon in memory. The campaign highlights the increasing threat to Linux servers, many of which lack adequate security measures.

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  1. 14.08.2025 16:16 📰 1 articles · ⏱ 1mo ago

    CrossC2 Framework Used to Extend Cobalt Strike to Linux and macOS

    Between September and December 2024, attackers used the CrossC2 framework to extend Cobalt Strike's capabilities to Linux and macOS systems. The campaign targeted multiple countries, including Japan, and employed various tools and techniques to evade detection and establish persistent control over compromised systems. The attacks involved custom malware, scheduled tasks, and anti-debugging measures. The activity shares similarities with BlackSuit/Black Basta ransomware operations.

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