- Fake CCleaner installs GhostDesk Chrome spyware
August 11, 2026
A fake version of the popular PC cleaning tool CCleaner is being used to infect Windows users with a malicious Chrome extension called GhostDesk, which acts as spyware inside the browser. With more than 2 billion downloads worldwide, CCleaner is one of the best-known Windows utilities, making it an attractive target for cybercriminals looking to distribute ...
- StopRansomware: Gunra Ransomware
August 10, 2026
Gunra is a ransomware-as-a-service (RaaS) used by affiliates to target government, critical infrastructure, and other organizations. The Gunra ransomware variant first appeared in 2025 and expanded to RaaS operations in 2026. The actors leverage a double-extortion model, both encrypting data and threatening to publish exfiltrated data to a dedicated leak site (DLS) if the ransom ...
- An analysis of incidents at Brazilian educational institutions
August 3, 2026
Because of the amount of data that can be obtained and the high impact that successful attacks may have, educational institutions are frequent targets of cybercriminals. Both public and private schools and universities rely on software for managing personally identifiable information (PII) that is often insecure or insufficiently tested against known vulnerabilities. In addition, machines ...
- Mirage Kitten targets Middle East and Africa region with new malware
July 28, 2026
Mirage Kitten – also known as UNC1549, Smoke Sandstorm, and Nimbus Manticore – is an advanced persistent threat (APT) group focused on cyber-espionage operations against aerospace, aviation, defense, and telecommunications sectors across the Middle East and Africa, using highly targeted spear-phishing campaigns, fake recruitment portals, and custom multi-stage malware to gain persistent access and exfiltrate sensitive data. During ...
- HOLLOWGRAPH: Turning Microsoft 365 Calendars into Covert Command-and-Control Channels
July 20, 2026
The Group-IB Threat Intelligence team has identified HOLLOWGRAPH, a new malware sample that we attribute, with high confidence, to the Cavern backdoor framework. This malware is one component of a larger toolkit, and it uses the Microsoft Graph API through a compromised Microsoft 365 account observed in Israel to communicate with its operators — a technique ...
- GoSerpent: a persistent threat evolves with sophisticated data collection and exfiltration
July 16, 2026
In February 2026, Kaspersky discovered a set of malicious activities that had been ongoing since late 2025. These activities involved a RAT module written in Go with proxy capabilities, which served as the main stage of the attack. The attack targeted government and diplomatic entities in Southeast Asia and showed a level of sophistication that ...
- This fake Apple app can unlock your Mac’s password vault
July 15, 2026
CrashStealer is a new macOS infostealer that masquerades as Apple’s CrashReporter component, uses an Apple‑notarized installer to slip past Gatekeeper, tricks users into handing over their password, and then systematically loots browsers, password managers, crypto wallets, and Keychain secrets before exfiltrating them in AES‑encrypted bundles. Researchers have been following the development of CrashStealer since May 2026. It ...
- Ghostcommit attack hides malicious AI instructions in images
July 13, 2026
Ghostcommit is a proof of concept that shows how AI assistants used to review software code can be tricked by hidden instructions embedded in images. The academic ASSET Research Group showed that an attacker can place instructions inside an image file, point to it in an AGENTS.md file, and get an AI coding agent to follow those instructions during a ...
- GigaWiper: Anatomy of a destructive backdoor assembled from multiple malware
July 9, 2026
In October 2025, Microsoft Threat Intelligence identified destructive wiping activity and uncovered a sophisticated Go programming language (Golang)-based backdoor we now track as GigaWiper, a versatile implant that combines robust command-and-control (C2) capabilities with multiple destructive payloads, including disk wiping, fake ransomware, and system-level sabotage. GigaWiper is particularly notable for its makeup. It’s not a single, ...
- Vidar Stealer Unmasked: Code Signing Abuse, Go Loaders and File Inflation
July 7, 2026
In April 2026, Unit 42 researchers identified a financially motivated campaign delivering Vidar stealer and the XMRig cryptocurrency miner to consumer and small- and medium-sized business victims worldwide. Attackers lure victims via malvertising to pages for downloading files that impersonate cracked versions of copyright-protected software. Upon execution, the loader drops and runs both Vidar stealer and ...