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ThreatFox: VShell IOCs

ioc-hunt HIGH ThreatFox
CommonSecurityLogDeviceNetworkEvents
iocthreatfoxwin-vshell
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: 2026-07-04T11:00:00Z · Confidence: high

Hunt Hypothesis

This hunt targets adversary behavior involving known VShell infrastructure indicators of compromise (IOCs) to identify potential command-and-control communications or malicious host interactions within the Azure environment. Proactively hunting for these specific IOCs in Azure Sentinel is critical because early detection allows the SOC team to isolate affected assets before the adversary establishes persistent footholds or exfiltrates sensitive data.

IOC Summary

Malware Family: VShell Total IOCs: 8 IOC Types: ip:port

TypeValueThreat TypeFirst SeenConfidence
ip:port38[.]60[.]163[.]248:8084botnet_cc2026-07-04100%
ip:port159[.]75[.]40[.]43:8088botnet_cc2026-07-04100%
ip:port194[.]56[.]225[.]147:19999botnet_cc2026-07-04100%
ip:port142[.]171[.]227[.]66:8084botnet_cc2026-07-04100%
ip:port101[.]35[.]79[.]91:9000botnet_cc2026-07-04100%
ip:port101[.]35[.]79[.]91:9999botnet_cc2026-07-04100%
ip:port101[.]35[.]79[.]91:8888botnet_cc2026-07-04100%
ip:port124[.]221[.]209[.]70:8084botnet_cc2026-07-04100%

KQL: Ip Hunt

// Hunt for network connections to known malicious IPs
// Source: ThreatFox - VShell
let malicious_ips = dynamic(["101.35.79.91", "142.171.227.66", "159.75.40.43", "194.56.225.147", "38.60.163.248", "124.221.209.70"]);
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(["101.35.79.91", "142.171.227.66", "159.75.40.43", "194.56.225.147", "38.60.163.248", "124.221.209.70"]);
DeviceNetworkEvents
| where RemoteIP in (malicious_ips)
| project Timestamp, DeviceName, RemoteIP, RemotePort, InitiatingProcessFileName, ActionType
| order by Timestamp desc

Required Data Sources

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

References

False Positive Guidance

Here are 5 specific false positive scenarios for the ThreatFox: VShell IOCs detection rule within an enterprise environment, along with suggested filters or exclusions:

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