--- title: Official Game Installs Malware | daily.dev description: A supply chain attack on the indie game 'Night Abyss' delivered the Umbral Stealer, an open-source info stealer written in C that exfiltrates browser cookies... canonical: https://daily.dev/posts/official-game-installs-malware-8eeqrswoq twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Official Game Installs Malware | daily.dev og:description: A supply chain attack on the indie game 'Night Abyss' delivered the Umbral Stealer, an open-source info stealer written in C that exfiltrates browser cookies... og:url: https://daily.dev/posts/official-game-installs-malware-8eeqrswoq og:image: https://api.daily.dev/og/posts/8EEqrSwoq.png og:image:alt: Official Game Installs Malware og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Official Game Installs Malware **[YouTube](https://daily.dev/sources/youtube)** · 6 min read · 0 upvotes · 0 comments ## Summary A supply chain attack on the indie game 'Night Abyss' delivered the Umbral Stealer, an open-source info stealer written in C that exfiltrates browser cookies and credentials via Discord webhooks. The malware bypasses 2FA by stealing active session cookies, potentially compromising all online accounts. The game developer downplayed the incident as an 'abnormal login.' The post explains how the stealer works, why gamers are high-value targets, and advises affected users to wipe their systems and reset all credentials. Windows Defender has a detection signature, but antivirus evasion remains trivial. The video is sponsored by ANY.RUN sandbox, which now supports macOS analysis. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#cyber](https://daily.dev/tags/cyber), [#malware](https://daily.dev/tags/malware) [View this post on daily.dev](https://daily.dev/posts/official-game-installs-malware-8eeqrswoq) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Official Game Installs Malware","url":"https://daily.dev/posts/official-game-installs-malware-8eeqrswoq","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/official-game-installs-malware-8eeqrswoq"},"datePublished":"2026-03-30T13:55:12.403Z","dateModified":"2026-03-30T13:55:37.118Z","description":"A supply chain attack on the indie game 'Night Abyss' delivered the Umbral Stealer, an open-source info stealer written in C that exfiltrates browser cookies...","image":"https://i.ytimg.com/vi/PXV6J-7FpgE/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/PXV6J-7FpgE/sddefault.jpg","isAccessibleForFree":true,"articleSection":"YouTube","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"YouTube","logo":"https://media.daily.dev/image/upload/s--W5zMumpP--/f_auto/v1725350181/logos/youtube","url":"https://daily.dev/sources/youtube"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/official-game-installs-malware-8eeqrswoq","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"cyber,malware","timeRequired":"PT6M","video":{"@type":"VideoObject","name":"Official Game Installs Malware","description":"A supply chain attack on the indie game 'Night Abyss' delivered the Umbral Stealer, an open-source info stealer written in C that exfiltrates browser cookies...","thumbnailUrl":"https://i.ytimg.com/vi/PXV6J-7FpgE/sddefault.jpg","uploadDate":"2026-03-30T13:55:12.403Z","duration":"PT6M","url":"https://api.daily.dev/r/8EEqrSwoq","embedUrl":"https://www.youtube.com/embed/PXV6J-7FpgE"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"YouTube","item":"https://daily.dev/sources/youtube"},{"@type":"ListItem","position":3,"name":"Official Game Installs Malware"}]} ```