ThreatFox: XWorm IOCs

Hunt Hypothesis

Hunt package for 5 IOCs associated with XWorm

IOC Summary

Malware Family: XWorm Total IOCs: 5 IOC Types: ip:port, domain

KQL: Ip Hunt

// Hunt for network connections to known malicious IPs
// Source: ThreatFox - XWorm
let malicious_ips = dynamic(["154.219.104.140", "41.45.156.241"]);
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(["154.219.104.140", "41.45.156.241"]);
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 - XWorm
let malicious_domains = dynamic(["ayidhh-48261.portmap.host", "aliowiasidaids-62178.portmap.host", "sex4fun.duckdns.org"]);
DnsEvents
| where Name has_any (malicious_domains)
| project TimeGenerated, Computer, Name, IPAddresses, QueryType
| order by TimeGenerated desc

Required Data Sources

References

• ThreatFox — XWorm