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AryStinger botnet infected thousands of D-Link routers worldwide

AryStinger botnet has compromised 4,000+ D-Link routers (DIR-850L, DIR-818LW) worldwide by exploiting known vulnerabilities, converting them into remote proxies for scanning, tunneling, and command execution. Attackers can modify DNS settings to hijack traffic and monitor network activity. Infections are concentrated in Asia but pose global risk to organizations using affected models.

CRITICALAdvisoryJun 22, 2026
Action required
Immediately identify and inventory all D-Link DIR-850L and DIR-818LW routers on your network. Patch to latest firmware or isolate/replace affected devices. Check firewall and DNS logs for anomalous proxy activity or DNS hijacking indicators.
Affected products
D-LinkD-Link DIR-850LD-Link DIR-818LWQianxin