Insights, news, education and announcements from PolySwarm | Malware Analysis

HybridPetya

Sep 22, 2025 2:40:03 PM / by The Hivemind posted in Threat Bulletin, Ransomware, Malware Analysis, Petya, NotPetya, HybridPetya, UEFI bootkit, CVE-2024-7344, Secure Boot bypass, Master File Table

Verticals Targeted: Not specified
Regions Targeted: None
Related Families: Petya, NotPetya, NotPetyaAgain, RedPetyaOpenSSL

Executive Summary

HybridPetya is a ransomware variant resembling Petya/NotPetya, capable of compromising UEFI-based systems and exploiting CVE-2024-7344 to bypass UEFI Secure Boot on outdated systems. While not observed in active campaigns, its advanced capabilities warrant close monitoring by security teams.

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New MacOS.ZuRu Variant Discovered

Jul 22, 2025 3:05:50 PM / by The Hivemind posted in Threat Bulletin, Evolving Threat, Malware Analysis, Cybersecurity Threat, MacOS malware, ZuRu malware, Termius trojan, macOS security, backdoor threat, SSH client attack, Khepri C2, developer security

Verticals Targeted: IT, software development
Regions Targeted: None specified
Related Families: None

Executive Summary

A new variant of the macOS.ZuRu malware, first identified in 2021, was discovered, leveraging a trojanized Termius application to deploy a modified Khepri C2 beacon, targeting developers and IT professionals. This sophisticated backdoor employs advanced techniques to evade detection and establish persistent remote access.

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Wicked Panda Targets Government Entities, Uses Google Calendar for C2

Jun 6, 2025 2:50:40 PM / by The Hivemind posted in Threat Bulletin, APT41, Wicked Panda, TOUGHPROGRESS malware, Google Calendar C2, Spear Phishing, Government Cyberattack, Chinese Cyber Espionage, Cloud Service Abuse, Malware Analysis, Data Exfiltration

Verticals Targeted: Government
Regions Targeted: Not specified
Related Families: VOLDEMORT, DUSTTRAP

Executive Summary

Wicked Panda, a Chinese state-sponsored threat actor, deployed TOUGHPROGRESS malware, exploiting Google Calendar for stealthy command-and-control operations targeting government entities. This campaign underscores the group’s innovative abuse of cloud services to evade detection and maintain persistent access.

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