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DDoS-for-Hire Operation Exposed: How an Operator's Debug Build Unraveled a Commercial Game-Server Botnet
An exposed open directory on a Netherlands-hosted server revealed the complete operational toolkit of xlabs_v1, a Mirai-derived IoT botnet operated by an actor using the handle Tadashi. The operation provides DDoS-for-hire services specifically targeting game servers and Minecraft hosts through 21 distinct flood attack variants. The botnet exploits Android Debug Bridge (ADB) on TCP/5555 to compromise over 4 million potentially vulnerable IoT devices including Android TV boxes, smart TVs, and routers. The operation features bandwidth profiling to price-tier infected devices, ChaCha20 string encryption with cryptographic weaknesses, and competitor-eradication routines. Infrastructure analysis consolidated the entire operation within a single bulletproof /24 netblock in the Netherlands, with co-located cryptojacking infrastructure also identified.
MITRE ATT&CK & Malware Families
Indicators of Compromise (3 / 12 total)
| TYPE | INDICATOR | DESCRIPTION | CREATED | |
|---|---|---|---|---|
| FileHash-MD5 | 5c3468e3c7a535b74fa91927fb1572d8 | — | 2026-04-29 | |
| FileHash-MD5 | 78774672884f8cd7593fced3c7d1faa4 | — | 2026-04-29 | |
| FileHash-MD5 | fac068afc5a0361f323f8b2fdbcbfd41 | — | 2026-04-29 |