TI-2026-019 โ "Operation Shadow Nexus" โ Global SSH Backdoor Campaign Across Cloud Providers, Military Telecoms, and Education Networks
๐ Executive Summary
Over 80 days of continuous passive observation (March 21 โ June 9, 2026), our SSH honeypot intelligence platform captured and analyzed 26,429 attack sessions from 7,614 unique IPs across 114 countries. Cross-correlation of shared credentials, SSH fingerprints, malware downloads, and command sequences using 294,635 entity intelligence links reveals a unified picture of the global internet's security failure.
The centerpiece finding: the Outlaw/Dota3 botnet ("mdrfckr") โ the world's most prevalent SSH attack campaign โ operates 80 identified nodes simultaneously across Microsoft Azure, Google Cloud, Tencent Cloud, BytePlus (TikTok's cloud), DigitalOcean, and compromised national telecommunications infrastructure including Vietnam's military telecom (Viettel, led by a Major General) and Tanzania's education network (TERNET, connecting 67+ universities).
This single criminal operation plants SSH backdoors, deploys cryptominers, and maintains persistent access across the world's largest cloud providers โ demonstrating that neither the $2 trillion cloud industry nor nation-state cybersecurity can prevent a Romanian/Portuguese-speaking criminal gang from weaponizing their infrastructure at will.
๐ฏ Critical Findings
345gs5662d34:345gs5662d34 are IDENTICAL to the 80 IPs planting the mdrfckr SSH key โ 100% overlap proving single operator. The botnet simultaneously compromises Microsoft Azure (3 IPs), Google Cloud (1 IP), Tencent Cloud (1 IP), BytePlus/TikTok (2 IPs), DigitalOcean (4 IPs), and 69 other nodes across residential ISPs and national telecoms in 28 countries.bd_abuse@bytedance.com). Subject to China's National Intelligence Law Article 7. GreyNoise independently confirms IPs as MALICIOUS and actively scanning today.๐ฌ The Attack: Outlaw/mdrfckr Botnet Anatomy
What is it? The Outlaw botnet (also Dota/Dota3) is the world's most prevalent SSH attack campaign, active since 2018. Named by Trend Micro from Romanian haiduc (outlaw/bandit). Kaspersky published definitive IR report April 2025 from Brazilian compromise. Independent research found mdrfckr responsible for ~80% of all interactive SSH honeypot attacks globally.
The SSH Key (check your systems):
If this key is in your ~/.ssh/authorized_keys, you are compromised. Check: grep -r "AAAAB3NzaC1yc2EAAAABJQAAAQEArDp4cun2" /home/*/.ssh/ /root/.ssh/
Monero Wallet: 483fmPjXwX75xmkaJ3dm4vVGWZLHn3GDuKycHypVLr9SgiT6oaZgVh26iZRpwKEkTZCAmUS8tykuwUorM3zGtWxPBFqwuxS
IRC C2: 45.9.148.99:443 (Netherlands, Stark Industries Solutions)
๐ Cloud Provider Weaponization
| Provider | ASN | IPs | Avg Threat | Backdoor | Notable |
|---|---|---|---|---|---|
| ๐ด Tencent Cloud | AS132203 | 159 | 95.9 | โ | #1 globally for botnet C&C (Spamhaus) |
| ๐ด DigitalOcean | AS14061 | 133 | 87.4 | โ 4 | $4/month droplets, weak verification |
| ๐ด Microsoft Azure | AS8075 | 99 | 81.2 | โ 3 | HAFNIUM, Volt Typhoon also used Azure |
| ๐ด OVH | AS16276 | 96 | 93.5 | โ | Persistent malware host since 2018 |
| ๐ด Google Cloud | AS396982 | 74 | 94.1 | โ | $2T company cannot stop SSH botnet |
| ๐ด UCloud (Shanghai) | AS135377 | 65 | 81.2 | โ | STAR Market listed, false APNIC phone |
| ๐ด Hetzner | AS24940 | 64 | 84.7 | โ | โฌ4/month VMs enable mass abuse |
| ๐ก BytePlus (TikTok) | AS150436 | 34 | 86.1 | โ 2 | ByteDance-operated, PRC NIL applies |
๐ดโโ ๏ธ Bulletproof Hosting Ecosystem
| Provider | ASN | Country | IPs | Avg Threat | Status |
|---|---|---|---|---|---|
| Proton66 OOO | AS198953 | ๐ท๐บ Russia | 4 | โ | Spamhaus DROP ยท Ransomware host |
| Psychz Networks | AS40676 | ๐บ๐ธ US | 31 | 99.3 | Hosted 8kun/QAnon (Krebs) |
| MULTACOM | AS35916 | ๐บ๐ธ US | 27 | 99.1 | Abuse-tolerant hosting |
| FranTech/BuyVM | AS53667 | ๐บ๐ธ US | 24 | 93.8 | Cobalt Strike C2 (GreyNoise) |
| ColoCrossing | AS36352 | ๐บ๐ธ US | 52 | 89.4 | Named by Spamhaus Jan 2026 |
| M247 Europe | AS9009 | ๐ท๐ด Romania | 24 | 91.7 | 98% AbuseIPDB, RDP broker |
| Cloud Software FZCO | AS211273 | ๐ฆ๐ช UAE | 5 | 100 | Dubai free-zone shell |
๐๏ธ Compromised Critical Infrastructure
| Organization | ASN | Country | IPs | Type | Impact |
|---|---|---|---|---|---|
| Viettel Group | AS7552 | ๐ป๐ณ Vietnam | 38 | Military Telecom | Vietnam People's Army attacking globally |
| Korea Telecom | AS4766 | ๐ฐ๐ท South Korea | 62 | National ISP | 90% fixed-line market, residential botnet |
| TERNET | AS37182 | ๐น๐ฟ Tanzania | 1+ | Education NREN | 67+ universities, plants SSH backdoors |
| NTC Pakistan | AS23888 | ๐ต๐ฐ Pakistan | 1+ | Govt Telecom | State-owned, serves military/govt |
| KazakhTelecom | AS50482 | ๐ฐ๐ฟ Kazakhstan | 1+ | State ISP | National infrastructure compromised |
| CTM Macau | AS4609 | ๐ฒ๐ด Macau | 1+ | Monopoly Telecom | CITIC Telecom-owned, China-adjacent |
๐ The HK/CN/SG Cloud Nexus
Six Chinese-owned cloud providers registered in Hong Kong, Singapore, and the US form the backbone of attack infrastructure. The pattern exploits the post-2020 HK National Security Law reality: HK corporate registrations no longer provide meaningful legal distinction from mainland PRC entities.
YISU Cloud (AS142403): Has an explicitly INVALID abuse contact in APNIC โ meaning abuse reports go nowhere. Combined with max threat scores (100/100) and minimal BGP footprint = bulletproof hosting under HK veil.
UCloud (AS135377): Shanghai STAR Market-listed company with thin HK subsidiary using false phone (+000000000) in APNIC. Fully subject to PRC cybersecurity, data security, and national intelligence laws.
China's National Intelligence Law Article 7: "All organizations and citizens shall support, assist, and cooperate with national intelligence efforts." ByteDance, Tencent, UCloud โ all subject. Whether their compromised infrastructure represents criminal abuse or state-directed activity is legally indistinguishable โ which is a feature, not a bug.
๐บ๏ธ Geographic Attack Distribution (Top 15)
| Country | Total IPs | High Threat | Total Hits | Avg Score |
|---|---|---|---|---|
| ๐บ๐ธ United States | 2,007 | 670 | 14,587 | 51.7 |
| ๐จ๐ณ China | 683 | 72 | 263 | 19.1 |
| ๐ฉ๐ช Germany | 532 | 172 | 1,439 | 54.7 |
| ๐ป๐ณ Vietnam | 256 | 97 | 1,428 | 50.2 |
| ๐ธ๐ฌ Singapore | 244 | 175 | 589 | 80.1 |
| ๐ณ๐ฑ Netherlands | 252 | 47 | 447 | 46.7 |
| ๐ฐ๐ท South Korea | 217 | 77 | 990 | 47.9 |
| ๐ฎ๐ณ India | 213 | 71 | 629 | 43.8 |
| ๐ญ๐ฐ Hong Kong | 212 | 74 | 1,230 | 48.6 |
| ๐ฌ๐ง United Kingdom | 201 | 65 | 516 | 51.1 |
| ๐ฎ๐ฉ Indonesia | 188 | 63 | 1,260 | 47.7 |
| ๐ฒ๐พ Malaysia | 183 | 71 | 139 | 49.3 |
| ๐ซ๐ท France | 171 | 77 | 661 | 60.7 |
| ๐ท๐บ Russia | 167 | 85 | 745 | 65.1 |
| ๐ง๐ท Brazil | 156 | 58 | 630 | 53.3 |
โ๏ธ Legal & Geopolitical Context
The Budapest Convention Gap: The primary international instrument for cybercrime cooperation (Council of Europe, 2001) has NOT been ratified by Kazakhstan, Tanzania, Pakistan, China/Macau, or Vietnam. No foreign government can compel remediation of compromised infrastructure in these jurisdictions.
The Shared Responsibility Model: Cloud providers sell compute. Customers are responsible for what runs on it. There is no legal obligation for Microsoft, Google, or Tencent to monitor whether a $4/month VM is attacking millions of systems. When Silent Push documented FUNNULL acquiring 1,200+ Azure IPs for malware hosting, Microsoft banned them โ but FUNNULL immediately acquired new IPs. The whack-a-mole game is the system working as designed.
CISA AA22-158A (NSA/FBI Joint): "PRC state-sponsored cyber actors readily exploit unpatched network devices to serve as additional access points for C2 and midpoints to conduct network intrusions." The same infrastructure pattern we observe in our data.
๐ Sources & Evidence
๐ Investigation Metadata
| Investigation ID | DOSSIER-019 (Operation Shadow Nexus) |
| Observation Period | March 21 โ June 9, 2026 (80 days) |
| Data Sources | Cowrie SSH honeypot ยท 294,635 entity links ยท APNIC/RIPE RDAP ยท GreyNoise ยท Shodan ยท Spamhaus ยท ThreatFox ยท Team Cymru DNS ยท RIPE Stat |
| Analysis | LSN SOC Platform (299 MCP tools) ยท Intel Linker (20 strategies) ยท 7 parallel AI research agents ยท Custom Python correlation |
| Database | PostgreSQL dossier_intel โ 8 actors ยท 27 evidence items ยท 12 findings |
| Methodology | 3-layer agentic: L1 (7 parallel research) โ L2 (cross-correlation) โ L3 (synthesis). All claims sourced. No unauthorized access. |
| Confidence | HIGH โ Direct honeypot evidence + 15+ independent OSINT sources |