Gridinsoft Security Lab

HackTool:Win64/GameHack!rfn is a Windows Defender detection for potentially dangerous game cheating software. Beyond their advertised functionality, these tools often contain hidden malicious features that can steal credentials, install additional malware, or compromise system security. This comprehensive guide analyzes the threat in detail and provides a complete removal solution. Threat Name HackTool:Win64/GameHack!rfn Type Game Hacking Tool […]

$34.6 million in cryptocurrency could be at risk from StilachiRAT, a complex remote access trojan first detected by Microsoft Incident Response in November 2024. Unlike conventional ransomware that announces its presence, this digital threat operates silently in the background, monitoring user activities until it identifies the perfect moment to drain cryptocurrency wallets. According to Microsoft’s […]

Researchers have discovered a non-obvious tactic in which attackers use steganography. While classic tactics rely on obfuscation and encryption, this method uses plain images as a malware carrier. In this post, I’ll go into more detail on how it works. Steganography Attack Overview Steganography, the practice of hiding data within another file, is increasingly used […]

Cybersecurity researchers have found MassJacker, a new, previously undocumented malware. It targets a predominantly freebie-seeking audience, i.e. users of pirated content. MassJacker Malware Targets Piracy Users MassJacker is a recently discovered malware that targets users downloading pirated software, aiming to steal their cryptocurrency. It is classified as a clipper malware, also referred to as cryware, […]

Trojan:Win64/RustyStealer.DSK!MTB is a sophisticated malware designed to infiltrate 64-bit Windows systems, primarily focusing on stealing sensitive information such as login credentials, financial data, and personal details. It operates silently, making it hard to detect without specialized security software, and can cause noticeable system slowdowns or unexpected pop-ups. In this post, I will explain how to […]

TrojanProxy:Win32/Acapaladat.B is a type of malware that hides in free, unauthorized VPN applications, turning infected computers into proxy servers for cybercriminals. This allows attackers to mask their identities while conducting illegal activities online, such as distributing more malware or launching attacks. In this post, I’ll go into more detail about what it is and how […]

OneStart is a rogue program that is presented as a Chromium-based browser with AI features, such as a ChatGPT widget and a desktop toolbar, aiming to streamline access to various online tools. It is in fact a rather controversial application, with many sources classifying it as a Potentially Unwanted Program (PUP) due to how it’s […]

EpiStart or EpiBrowser is a Chromium-based web browser that is often installed without the user’s explicit consent. After installation, it passes all search queries through a chain of dubious pages, then delivers results by a different search engine. In this post, I will explain how did this browser appear and how to remove it for […]

The release of DeepSeek AI chatbot gave a push for an enormous number of DeepSeek scams that trick users in a variety of shady activities. Some of them just aim at charging money for services that are free by design, others try collecting users’ personal information or even infect them with malware. In this article, […]

“Windows Defender Security Center” is a scam message that comes from a fake website. This fraud is built on the inexperience and trust of Internet users. Now I will tell you how it works and how not to become a victim of it. Windows Defender Security Center Scam Overview “Windows Defender Security Center” is a […]

Jupiter Airdrop scam is an alleged crypto-airdrop campaign that promises free crypto tokens, yet in return only empties users’ crypto wallets. Parasiting on the name of a legit and real cryptocurrency, this scam exploits hastily made decisions and a rush for quick profit. In this article, I describe how this scam operates, and explain to […]

Sync.clearnview.com is a website that users can see in a number of alerts from antivirus programs. Simultaneously, it may appear during the normal browsing activity, and display unwanted and unpredicted results. Its presence in any form is a marker of malicious activity, and in this article, I will explain how to remove it and prevent […]