Trend Micro researchers recently found the existence of a new stealer binary that collects browser and cryptocurrency wallet data, system information, and common files, among others.
The researchers designated this new stealer BoryptGrab. Certain variants of the stealer can download a PyInstaller backdoor, which Trend Micro refer to as TunnesshClient. TunnesshClient establishes a reverse Secure Shell (SSH) tunnel to enable comunication with the attacker. By tracing the infection chain, the researchers were able to observe several ZIP archive files in the wild (all with similar naming conventions) that masquerade as common software tools (including gaming cheat hacks).
Read more…
Source: Trend Micro
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Ransomware groups grow revenue by almost 40% in Q1 2026
June 2, 2026
In the first quarter of the year, ransomware groups increased their revenue by almost 40%, compared to the same period last year. This is according to a new report from cybersecurity researchers Rapid7, who said the increase is partly due to a maturing cybercriminal industry. Rapid7 based its findings on its research telemetry, which showed that ...
- Password manager Dashlane says hackers stole some customers’ password vaults
June 2, 2026
Password manager maker Dashlane says hackers have obtained at least a dozen encrypted vaults used for storing customer passwords during a weekend cyberattack. The company said on its website that hackers brute-forced the company’s two-factor authentication system, granting the hackers access to about 20 customer accounts. By defeating its two-factor mechanism, the hackers were able to download a copy of ...
- Operation FlutterBridge: macOS Malvertising Campaign Spreads New FlutterShell Backdoor
June 2, 2026
Palo Alto Unit 42 are tracking an increasingly widespread malvertising campaign targeting macOS. This campaign appears to be the next stage of a previous campaign known as JSCoreRunner, which was first identified in August 2025. In recent months, the financially-motivated attackers behind these campaigns transitioned from delivering standard adware, to delivering adware with full backdoor ...
- Russian spy agency says foreign spies turned officials’ smartphones into surveillance devices
June 2, 2026
Russia’s domestic spy agency says it has uncovered a sprawling foreign espionage operation that allegedly turned the smartphones of senior Russian officials into pocket-sized surveillance devices, though it has so far offered little in the way of evidence. In a statement Tuesday, the Federal Security Service (FSB) claimed foreign intelligence agencies implanted malware on the mobile devices ...
- Fake virus alerts are invading mobile games
June 2, 2026
Sometimes it happens. You’re happily playing a game on your phone or laptop when suddenly alarms pop up out of nowhere: “Your device is infected!” “Your iCloud is full!” “Your account is restricted for watching porn!” Some games can be played for free if you agree to watch ads, and in others you can get extra lives, perks, or ...
- Palo Alto VPN bug graduates from advisory to active exploitation
June 1, 2026
Palo Alto customers are being been told to patch yet another internet-facing security flaw after researchers caught attackers bypassing GlobalProtect authentication and gaining unauthorized VPN access. The flaw, tracked as CVE-2026-0257, affects PAN-OS deployments using GlobalProtect authentication override cookies under specific configurations. Read more… Source: The Register Sign up for the Cyber Security Review Newsletter The latest cyber security news and ...