Topic: anti-analysis mechanisms
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Gootloader Evades Detection With 1,000-Part ZIP Archives
Gootloader malware now uses massively concatenated ZIP archives, a technique designed to crash common analysis tools and evade detection by exploiting parser vulnerabilities. The attack employs multiple evasion layers, including corrupted archive structures and unique file generation per download...
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Fortune 100 Firm Hit by New PDFSider Windows Malware
A Fortune 100 company was compromised by a novel, stealthy malware called PDFSider, delivered via social engineering and a spearphishing email that used a legitimate, signed PDF24 Creator executable to side-load malicious code. The PDFSider backdoor exhibits advanced persistent threat (APT) chara...
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Security Researchers Uncover New LockBit Ransomware Targets
The LockBit ransomware group has officially resumed operations in late summer 2025, with at least a dozen new victims confirmed across multiple continents, indicating their infrastructure and affiliate network are fully functional again. A new LockBit 5.0 variant is being used in half of the rece...
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