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ThreatFox: AsyncRAT IOCs

ioc-hunt HIGH ThreatFox
CommonSecurityLogDeviceNetworkEventsDnsEvents
backdooriocthreatfoxwin-asyncrat
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: 2026-05-23T03:15:01Z · Confidence: high

Hunt Hypothesis

The ThreatFox: AsyncRAT IOCs rule detects potential command and control activity associated with the AsyncRAT malware, which is known for its persistence and data exfiltration capabilities. SOC teams should proactively hunt for these IOCs in Azure Sentinel to identify and mitigate advanced persistent threats that could compromise sensitive data and network integrity.

IOC Summary

Malware Family: AsyncRAT Total IOCs: 12 IOC Types: domain, ip:port

TypeValueThreat TypeFirst SeenConfidence
ip:port45[.]154[.]98[.]84:100botnet_cc2026-05-2275%
ip:port45[.]154[.]98[.]84:8808botnet_cc2026-05-2275%
ip:port192[.]109[.]200[.]183:5566botnet_cc2026-05-2275%
domaindozie.iobotnet_cc2026-05-2275%
ip:port38[.]146[.]25[.]232:8808botnet_cc2026-05-22100%
ip:port207[.]180[.]250[.]181:111botnet_cc2026-05-22100%
ip:port207[.]180[.]250[.]181:70botnet_cc2026-05-22100%
ip:port31[.]57[.]184[.]154:7006botnet_cc2026-05-2275%
ip:port31[.]171[.]131[.]118:7707botnet_cc2026-05-2275%
ip:port31[.]171[.]131[.]118:8808botnet_cc2026-05-2275%
ip:port193[.]93[.]194[.]31:50194botnet_cc2026-05-2275%
ip:port176[.]119[.]25[.]78:7707botnet_cc2026-05-2275%

KQL: Ip Hunt

// Hunt for network connections to known malicious IPs
// Source: ThreatFox - AsyncRAT
let malicious_ips = dynamic(["31.57.184.154", "38.146.25.232", "45.154.98.84", "31.171.131.118", "193.93.194.31", "207.180.250.181", "176.119.25.78", "192.109.200.183"]);
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(["31.57.184.154", "38.146.25.232", "45.154.98.84", "31.171.131.118", "193.93.194.31", "207.180.250.181", "176.119.25.78", "192.109.200.183"]);
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 - AsyncRAT
let malicious_domains = dynamic(["dozie.io"]);
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

Original source: https://threatfox.abuse.ch/browse/malware/win.asyncrat/