This detection identifies network traffic accessing known Mirai botnet command-and-control or infection URLs to uncover potential IoT device compromise and lateral movement within the environment. Proactively hunting for these indicators in Azure Sentinel is critical because Mirai variants can rapidly propagate across vulnerable devices, enabling adversaries to establish persistent footholds and launch large-scale DDoS attacks before traditional signatures trigger alerts.
Threat: mirai Total URLs: 24 Active URLs: 24
| URL | Status | Threat | Date Added |
|---|---|---|---|
hxxp://38.21.70.189:57213/i | online | malware_download | 2026-08-06 |
hxxp://42.228.42.19:45035/i | online | malware_download | 2026-08-06 |
hxxp://81.227.43.110:42887/i | online | malware_download | 2026-08-06 |
hxxp://42.228.42.19:45035/bin.sh | online | malware_download | 2026-08-06 |
hxxp://36.48.115.106:55712/bin.sh | online | malware_download | 2026-08-06 |
hxxp://36.48.115.106:55712/i | online | malware_download | 2026-08-06 |
hxxp://36.88.136.194:55285/bin.sh | online | malware_download | 2026-08-06 |
hxxp://38.21.70.189:57213/bin.sh | online | malware_download | 2026-08-06 |
hxxp://146.168.191.176:60415/i | online | malware_download | 2026-08-06 |
hxxp://222.220.145.167:51630/i | online | malware_download | 2026-08-06 |
hxxp://114.227.52.84:57134/bin.sh | online | malware_download | 2026-08-06 |
hxxp://27.159.154.179:54329/bin.sh | online | malware_download | 2026-08-06 |
hxxp://210.208.110.165:41387/bin.sh | online | malware_download | 2026-08-06 |
hxxp://112.123.40.206:33747/bin.sh | online | malware_download | 2026-08-06 |
hxxp://116.169.248.98:42731/i | online | malware_download | 2026-08-06 |
hxxp://210.208.110.165:41387/i | online | malware_download | 2026-08-06 |
hxxp://110.37.39.146:45933/bin.sh | online | malware_download | 2026-08-06 |
hxxp://120.28.199.24:44381/i | online | malware_download | 2026-08-06 |
hxxp://210.208.111.26:48412/i | online | malware_download | 2026-08-06 |
hxxp://183.148.9.117:55917/Mozi.a | online | malware_download | 2026-08-06 |
hxxp://101.108.9.143:38727/i | online | malware_download | 2026-08-06 |
hxxp://210.208.111.74:43380/i | online | malware_download | 2026-08-06 |
hxxp://121.231.142.133:54062/bin.sh | online | malware_download | 2026-08-06 |
hxxp://171.38.221.210:59639/bin.sh | online | malware_download | 2026-08-06 |
// Hunt for DNS resolution of URLhaus malicious domains
// Threat: mirai
let malicious_domains = dynamic(["222.220.145.167", "27.159.154.179", "210.208.111.74", "101.108.9.143", "81.227.43.110", "183.148.9.117", "120.28.199.24", "146.168.191.176", "210.208.111.26", "42.228.42.19", "210.208.110.165", "112.123.40.206", "36.48.115.106", "36.88.136.194", "114.227.52.84", "110.37.39.146", "121.231.142.133", "38.21.70.189", "171.38.221.210", "116.169.248.98"]);
DnsEvents
| where Name has_any (malicious_domains)
| project TimeGenerated, Computer, Name, IPAddresses
| order by TimeGenerated desc
// Hunt for web traffic to URLhaus malicious domains
let malicious_domains = dynamic(["222.220.145.167", "27.159.154.179", "210.208.111.74", "101.108.9.143", "81.227.43.110", "183.148.9.117", "120.28.199.24", "146.168.191.176", "210.208.111.26", "42.228.42.19", "210.208.110.165", "112.123.40.206", "36.48.115.106", "36.88.136.194", "114.227.52.84", "110.37.39.146", "121.231.142.133", "38.21.70.189", "171.38.221.210", "116.169.248.98"]);
CommonSecurityLog
| where RequestURL has_any (malicious_domains) or DestinationHostName has_any (malicious_domains)
| project TimeGenerated, SourceIP, RequestURL, DestinationHostName, DeviceAction
| order by TimeGenerated desc
| Sentinel Table | Notes |
|---|---|
CommonSecurityLog | Ensure this data connector is enabled |
DnsEvents | Ensure this data connector is enabled |
Here are 5 specific false positive scenarios for the URLhaus: mirai Malicious URLs detection rule, including tailored filters and exclusions suitable for an enterprise environment:
IoT Device Firmware Updates via Vendor Portals
*.cisco.com, *.ubnt.com). Alternatively, filter out traffic where the HTTP User-Agent string contains keywords like “FirmwareUpdate” or “DeviceManager”.Scheduled Backup Jobs to Cloud Storage Providers
Veeam.Backup.Service.exe, rubrik-agent) and the Destination Port (typically 443). Ensure the exclusion applies only during the defined maintenance window (e.g., 02:00–06:00 UTC).Third-Party API Integration for Supply Chain Management