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Autocolor is a malware family observed in active exploitation campaigns leveraging the React2Shell (CVE-2025-55182) vulnerability in React Server Components. It has been deployed by both nation-state actors (notably Chinese and North Korean government-backed groups) and cybercriminal organizations as part of multi-stage attacks. Autocolor is used alongside other malware such as Snowlight, Vshell, NoodlerRat, XMRIG, BPFDoor, Mirai, and Supershell, indicating its role in a diverse threat ecosystem. The campaigns target a wide range of sectors, including financial services, higher education, technology, government, media, manufacturing, and hospitality, with global victims across the U.S., Asia, South America, and the Middle East. While the specific technical capabilities and behavior of Autocolor are not detailed in the provided content, its deployment in these attacks suggests it is used for post-exploitation activities, potentially including backdoor access, persistence, or facilitating further payload delivery. No explicit indicators of compromise or detailed TTPs for Autocolor are mentioned in the available context.
Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
1 indicator attributed across vendor reports, sandbox runs, and researcher write-ups. Full values are available in Mallory.
File hashes (MD5, SHA-1, SHA-256) from samples and reports.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Malware observed in attacks exploiting CVE-2025-55182. Specific functionality not detailed in the content.
Malware observed in attacks exploiting CVE-2025-55182. Specific functionality not detailed in the content.
Unit 42 said it has observed Snowlight, Vshell, NoodlerRat, XMRIG, BPFDoor, Autocolor, Mirai and Supershell malware.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.