Kaspersky has warned that a new infostealer called “Stealka” is being spread through bogus video game mods and cracked software, putting crypto users and gamers at risk. The malware was identified in November 2025 and is delivered as what looks like harmless game add-ons or utility cracks. Systems running Windows are the main target. Attackers Hide Malware In Mods Reports have disclosed that Stealka is disguised as cheats, mods and cracks for popular titles, with fake packages posted to places users normally trust. Files have been seen on GitHub, SourceForge, Softpedia and Google Sites, which helps the downloads look legitimate. In some cases, the malware was packaged as a Roblox mod or as a cracked copy of Microsoft Visio. According to Kaspersky, the campaign uses convincing websites and may employ automated tools to create professional pages that trick people into clicking download links. Data And Wallets Targeted Once run, Stealka searches for browser data, saved passwords and crypto wallet information. Based on reports, it targets more than 115 browser extensions tied to wallets, password managers and two-factor apps. Extensions for MetaMask, Binance Wallet, Coinbase and other popular wallets are among those at risk. Private keys, seed phrases and wallet file paths can be exposed on an infected machine, and stored browser cards and autofill entries are also collected. Victims’ accounts can be taken over using the stolen credentials, and that access can then be used to push further malicious links to friends or followers. How The Threat Spreads And Where It’s Seen Kaspersky’s telemetry shows initial detections in Russia, with additional cases reported in Turkey, Brazil, Germany and India. Distribution methods vary. Sometimes a single download bundle carries Stealka; other times it is paired with cryptominer code so infected computers also mine cryptocurrency for the attackers. Files hosted on trusted developer portals make it harder for users to spot danger, and the malware’s wide reach means standard precautions can still be bypassed if users ignore basic safety steps. Recommendations For Users According to cybersecurity advisories, avoid unofficial or pirated software and only download mods from verified, trusted creators. Use a reputable antivirus product and keep it updated. Password managers are recommended over saving credentials in browsers, and two-factor authentication should be enabled for crypto accounts when available. Keep Windows and applications patched, and check that a downloaded file’s checksum or digital signature matches the developer’s published value before running installers. Featured image from Kaspersky, chart from TradingView
