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Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
3 distinct threat actors attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.
“Nyx forensic trace cleaner ... ‘can be built into the locker at the end’.”
The separadordeinfocc package weighs 157 KB... The result: 5,092 lines of fully functional JavaScript that constitute one of the most complete infostealers we have analyzed from the npm ecosystem. They call it NYX.
23 distinct techniques documented for this family, organized by ATT&CK tactic.
Inside is a single index.js file: an IIFE wrapping a Base64-encoded blob that, when decoded, produces 214,900 bytes of XOR-encrypted data. The key is hardcoded in the clear.
“Steganography scripts (stego_roundtrip.py, discord_fix2/stego.py) ... sit alongside Mythic tasking scripts.”
“telemetry-update[.]services ... with a spoofed Server: NetDNA-cache/2.2 header ... mimics a CDN edge node” and was “built to blend with Windows telemetry traffic.”
Nyx is described as a self-contained script for cleaning forensic artifacts on Linux, macOS, and Windows.
NYX reads leveldb databases and Local State files, decrypts tokens protected by DPAPI using a PowerShell helper, and validates every recovered token against the Discord API...
NYX captures screenshots at 80-millisecond intervals -- roughly 12 frames per second -- compresses them to JPEG (1280px width, quality 55), and streams them over the WebSocket.
NYX connects via WebSocket to ws://18[.]231[.]131[.]246:80 -- an AWS EC2 instance in the sa-east-1 region (Sao Paulo, Brazil). This is not a simple beacon. It is a bidirectional command-and-control channel supporting real-time interactive operations.
“Seven Discord diagnostic scripts ... indicate Discord is a production C2 transport, not an experiment.”
17 indicators attributed across vendor reports, sandbox runs, and researcher write-ups. Full values are available in Mallory.
IPs, domains, and DNS infrastructure linked to this family.
File hashes (MD5, SHA-1, SHA-256) from samples and reports.
Other indicator types observed in public reporting.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
PowerShell script/tool downloaded by the attackers; the content does not describe its functionality.
Anti-forensic cleanup script used to remove logs, command history, prefetch data, registry artifacts, USB history, shadow copies, EDR/AV logs, and other evidence of attacker activity.
Custom Windows PE payload/implant family under active iterative development, with eleven observed builds staged on infrastructure associated with a Mythic-only cluster.
A forensic trace-cleaning tool intended to remove evidence after intrusion and ransomware deployment.
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.