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URLhaus: censys Malicious URLs

ioc-hunt HIGH URLhaus
CommonSecurityLogDnsEvents
iocurlhaus
This rule was pulled from an open-source repository and enriched with AI. Validate in a test environment before deploying to production.
View original rule at URLhaus →
Retrieved: 2026-07-22T23:00:00Z · Confidence: medium

Hunt Hypothesis

This hunt detects adversary behavior involving the consumption of newly identified malicious web resources flagged by Censys within the URLhaus threat intelligence feed. A SOC team should proactively investigate these indicators in Azure Sentinel to rapidly identify potential initial access or command and control activities before they escalate into broader incidents.

IOC Summary

Threat: censys Total URLs: 21 Active URLs: 7

URLStatusThreatDate Added
hxxp://43.201.225.240/pty4offlinemalware_download2026-07-22
hxxp://95.179.224.131:8080/pty4offlinemalware_download2026-07-22
hxxp://133.130.120.21/pty3onlinemalware_download2026-07-22
hxxp://107.175.91.154/pty4onlinemalware_download2026-07-22
hxxp://153.121.64.189/pty4onlinemalware_download2026-07-22
hxxp://133.130.120.21/pty4onlinemalware_download2026-07-22
hxxp://153.121.64.189/pty3onlinemalware_download2026-07-22
hxxp://158.101.170.110:8080/pty4onlinemalware_download2026-07-22
hxxp://128.140.127.91:8080/pty3offlinemalware_download2026-07-22
hxxp://103.149.46.223/pty4offlinemalware_download2026-07-22
hxxp://44.251.73.166/pty4offlinemalware_download2026-07-22
hxxp://3.150.67.206/pty4offlinemalware_download2026-07-22
hxxp://185.76.78.13:8080/pty3offlinemalware_download2026-07-22
hxxp://54.241.21.243/pty4offlinemalware_download2026-07-22
hxxp://43.201.225.240/pty3offlinemalware_download2026-07-22
hxxp://54.204.84.214/pty4offlinemalware_download2026-07-22
hxxp://128.140.127.91:8080/pty4offlinemalware_download2026-07-22
hxxp://103.149.46.223/pty3offlinemalware_download2026-07-22
hxxp://185.76.78.13:8080/pty4offlinemalware_download2026-07-22
hxxp://95.179.224.131:8080/pty3offlinemalware_download2026-07-22
hxxp://185.209.49.62/pty3onlinemalware_download2026-07-22

KQL: Url Dns Hunt

// Hunt for DNS resolution of URLhaus malicious domains
// Threat: censys
let malicious_domains = dynamic(["153.121.64.189", "133.130.120.21", "158.101.170.110", "185.209.49.62", "107.175.91.154"]);
DnsEvents
| where Name has_any (malicious_domains)
| project TimeGenerated, Computer, Name, IPAddresses
| order by TimeGenerated desc

KQL: Url Proxy Hunt

// Hunt for web traffic to URLhaus malicious domains
let malicious_domains = dynamic(["153.121.64.189", "133.130.120.21", "158.101.170.110", "185.209.49.62", "107.175.91.154"]);
CommonSecurityLog
| where RequestURL has_any (malicious_domains) or DestinationHostName has_any (malicious_domains)
| project TimeGenerated, SourceIP, RequestURL, DestinationHostName, DeviceAction
| order by TimeGenerated desc

Required Data Sources

Sentinel TableNotes
CommonSecurityLogEnsure this data connector is enabled
DnsEventsEnsure this data connector is enabled

References

False Positive Guidance

Here are 4 specific false positive scenarios for the URLhaus: censys Malicious URLs detection rule, along with targeted filters and exclusions suitable for an enterprise environment:

Original source: https://urlhaus.abuse.ch/