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ThreatFox: Vidar IOCs

ioc-hunt HIGH ThreatFox
DnsEventsUrlClickEvents
iocthreatfoxwin-vidar
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: 2026-08-15T11:00:00Z · Confidence: high

Hunt Hypothesis

This hunt detects adversary behavior involving the deployment of Vidar malware by matching network and endpoint telemetry against a curated set of 25 known indicators of compromise (IOCs). A SOC team should proactively hunt for these signals in Azure Sentinel to rapidly identify active infections, as Vidar’s modular architecture allows it to persist undetected while exfiltrating sensitive data before traditional alerts trigger.

IOC Summary

Malware Family: Vidar Total IOCs: 25 IOC Types: url, domain

TypeValueThreat TypeFirst SeenConfidence
domainbyz.sm188dadu.topbotnet_cc2026-08-15100%
urlhxxps://byz.sm188dadu.top/botnet_cc2026-08-15100%
domainbyz[.]10001slot.orgbotnet_cc2026-08-15100%
urlhxxps://byz[.]10001slot.org/botnet_cc2026-08-15100%
urlhxxps://steamcommunity.com/profiles/76561198657426610botnet_cc2026-08-15100%
urlhxxps://2[.]28[.]26[.]204botnet_cc2026-08-15100%
urlhxxps://telegram.me/m1duusbotnet_cc2026-08-15100%
domaingru.sm188dadu.topbotnet_cc2026-08-14100%
domaingru[.]10001slot.orgbotnet_cc2026-08-14100%
urlhxxps://89[.]167[.]3[.]143botnet_cc2026-08-1475%
domainboi.sm188dadu.topbotnet_cc2026-08-14100%
urlhxxps://boi.sm188dadu.top/botnet_cc2026-08-14100%
domainboi[.]10001slot.orgbotnet_cc2026-08-14100%
urlhxxps://boi[.]10001slot.org/botnet_cc2026-08-14100%
urlhxxps://nu7.sm188dadu.top/botnet_cc2026-08-14100%
domainnu7.sm188dadu.topbotnet_cc2026-08-14100%
urlhxxps://nu7[.]10001slot.org/botnet_cc2026-08-14100%
domainnu7[.]10001slot.orgbotnet_cc2026-08-14100%
domainpoh.sm188dadu.topbotnet_cc2026-08-14100%
urlhxxps://poh.sm188dadu.top/botnet_cc2026-08-14100%
domainpoh[.]10001slot.orgbotnet_cc2026-08-14100%
urlhxxps://kee[.]10001slot.orgbotnet_cc2026-08-14100%
urlhxxps://xdr[.]10001slot.orgbotnet_cc2026-08-14100%
urlhxxps://tip[.]10001slot.orgbotnet_cc2026-08-14100%
urlhxxps://kee.sm188dadu.topbotnet_cc2026-08-14100%

KQL: Domain Hunt

// Hunt for DNS queries to known malicious domains
// Source: ThreatFox - Vidar
let malicious_domains = dynamic(["byz.sm188dadu.top", "byz.10001slot.org", "gru.sm188dadu.top", "gru.10001slot.org", "boi.sm188dadu.top", "boi.10001slot.org", "nu7.sm188dadu.top", "nu7.10001slot.org", "poh.sm188dadu.top", "poh.10001slot.org"]);
DnsEvents
| where Name has_any (malicious_domains)
| project TimeGenerated, Computer, Name, IPAddresses, QueryType
| order by TimeGenerated desc

KQL: Url Hunt

// Hunt for access to known malicious URLs
// Source: ThreatFox - Vidar
let malicious_urls = dynamic(["https://byz.sm188dadu.top/", "https://byz.10001slot.org/", "https://steamcommunity.com/profiles/76561198657426610", "https://2.28.26.204", "https://telegram.me/m1duus", "https://89.167.3.143", "https://boi.sm188dadu.top/", "https://boi.10001slot.org/", "https://nu7.sm188dadu.top/", "https://nu7.10001slot.org/", "https://poh.sm188dadu.top/", "https://kee.10001slot.org", "https://xdr.10001slot.org", "https://tip.10001slot.org", "https://kee.sm188dadu.top"]);
UrlClickEvents
| where Url has_any (malicious_urls)
| project Timestamp, AccountUpn, Url, ActionType, IsClickedThrough
| order by Timestamp desc

Required Data Sources

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

References

False Positive Guidance

Here are 4 specific false positive scenarios for the ThreatFox: Vidar IOCs detection rule, including targeted filters and exclusions suitable for an enterprise environment:

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