Topic: dll side-loading
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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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Ransomware Gangs Now Use Shanya EXE Packer to Evade EDR
Cybersecurity threat groups are increasingly using the commercial **Shanya packer service** to encrypt and obfuscate ransomware payloads, making them difficult for traditional security tools to detect and block. The packer's unique, customized output for each customer helps bypass signature-based...
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Russian APT28 Deploys 'NotDoor' Backdoor to Target Microsoft Outlook
A new sophisticated backdoor called NotDoor, attributed to Russian state-aligned group APT28, targets Microsoft Outlook to exfiltrate data and execute remote commands. The malware uses obfuscated VBA code and triggers from specific email phrases to deploy malicious actions, while employing evasio...
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Urgent Windows Flaw CVE-2025-9491 Actively Exploited by Hackers
A critical Windows security flaw (CVE-2025-9491) is being actively exploited by hacking group UNC6384, enabling unauthorized code execution through malicious LNK files in spearphishing campaigns targeting European diplomatic and aviation entities. The exploitation involves a multi-stage malware c...
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Beware: Noodlophile Infostealer Masks as Fake Legal Notices
A global cyber campaign uses fake legal notices via spear-phishing emails to distribute the Noodlophile infostealer, impersonating law firms to create urgency and steal sensitive data. The malware employs sophisticated techniques like DLL side-loading and disguised malicious files to bypass secur...
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