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ThreatFox: Unknown malware IOCs

ioc-hunt HIGH ThreatFox
CommonSecurityLogDeviceNetworkEventsDnsEvents
iocthreatfoxunknown
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 ThreatFox →
Retrieved: 2026-07-02T23:00:00Z · Confidence: high

Hunt Hypothesis

This hunt targets adversary behavior involving the execution of previously unidentified malware by correlating twenty specific indicators of compromise across the environment. Proactively hunting for these unknown threats in Azure Sentinel is critical to establish baseline visibility and accelerate incident response before established detection rules can be configured.

IOC Summary

Malware Family: Unknown malware Total IOCs: 20 IOC Types: ip:port, domain

TypeValueThreat TypeFirst SeenConfidence
ip:port154[.]220[.]94[.]39:8888botnet_cc2026-07-02100%
ip:port154[.]220[.]95[.]126:8888botnet_cc2026-07-02100%
domainclickhitriver.compayload_delivery2026-07-02100%
ip:port154[.]220[.]93[.]235:8888botnet_cc2026-07-02100%
ip:port154[.]220[.]123[.]189:8888botnet_cc2026-07-02100%
ip:port154[.]220[.]122[.]107:8888botnet_cc2026-07-02100%
ip:port154[.]220[.]122[.]114:8888botnet_cc2026-07-02100%
ip:port154[.]220[.]121[.]50:8888botnet_cc2026-07-02100%
ip:port154[.]220[.]123[.]170:8888botnet_cc2026-07-02100%
ip:port154[.]220[.]123[.]165:8888botnet_cc2026-07-02100%
ip:port102[.]117[.]171[.]174:7443botnet_cc2026-07-0275%
domainwaysmakeyourlifebetter.compayload_delivery2026-07-02100%
domaingoodpersonofourcentury.compayload_delivery2026-07-02100%
domainbesthappyfamily.compayload_delivery2026-07-02100%
domainauthorization-code.infopayload_delivery2026-07-02100%
domainfesold.compayload_delivery2026-07-02100%
ip:port154[.]220[.]121[.]35:8888botnet_cc2026-07-02100%
ip:port154[.]220[.]120[.]254:8888botnet_cc2026-07-02100%
ip:port154[.]220[.]120[.]231:8888botnet_cc2026-07-02100%
ip:port154[.]220[.]120[.]234:8888botnet_cc2026-07-02100%

KQL: Ip Hunt

// Hunt for network connections to known malicious IPs
// Source: ThreatFox - Unknown malware
let malicious_ips = dynamic(["154.220.121.50", "154.220.122.107", "154.220.94.39", "154.220.123.165", "154.220.120.254", "154.220.95.126", "154.220.93.235", "154.220.122.114", "154.220.121.35", "154.220.123.189", "154.220.120.231", "154.220.120.234", "102.117.171.174", "154.220.123.170"]);
CommonSecurityLog
| where DestinationIP in (malicious_ips) or SourceIP in (malicious_ips)
| project TimeGenerated, SourceIP, DestinationIP, DestinationPort, DeviceAction, Activity
| order by TimeGenerated desc

KQL: Ip Hunt Device

// Hunt in Defender for Endpoint network events
let malicious_ips = dynamic(["154.220.121.50", "154.220.122.107", "154.220.94.39", "154.220.123.165", "154.220.120.254", "154.220.95.126", "154.220.93.235", "154.220.122.114", "154.220.121.35", "154.220.123.189", "154.220.120.231", "154.220.120.234", "102.117.171.174", "154.220.123.170"]);
DeviceNetworkEvents
| where RemoteIP in (malicious_ips)
| project Timestamp, DeviceName, RemoteIP, RemotePort, InitiatingProcessFileName, ActionType
| order by Timestamp desc

KQL: Domain Hunt

// Hunt for DNS queries to known malicious domains
// Source: ThreatFox - Unknown malware
let malicious_domains = dynamic(["clickhitriver.com", "waysmakeyourlifebetter.com", "goodpersonofourcentury.com", "besthappyfamily.com", "authorization-code.info", "fesold.com"]);
DnsEvents
| where Name has_any (malicious_domains)
| project TimeGenerated, Computer, Name, IPAddresses, QueryType
| order by TimeGenerated desc

Required Data Sources

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

References

False Positive Guidance

Here are specific false positive scenarios for the ThreatFox: Unknown malware IOCs rule, including suggested filters and exclusions tailored for an enterprise environment:

Original source: https://threatfox.abuse.ch/browse/malware/unknown/