Suspicious LLMNR and NBT-NS Poisoning Tooling via ALPHA SPIDER (via process_creation)

ATT&CK techniques

Cred Access → Collection

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1557.001Name Resolution Poisoning and SMB Relay
Discovery
Lateral Movement
Collection
- T1557.001Name Resolution Poisoning and SMB Relay
C2
Exfiltration
Impact

What it detects

This rule detects execution of Responder or mitm6, tools used to poison LLMNR, NBT-NS, and IPv6 name resolution. ALPHA SPIDER deployed these utilities to coerce authentication and capture credentials on internal networks. Their presence on production hosts is a strong credential-access indicator.

Reporting behind it

Related detections9 linkedT1557.001 — drag to rearrange

Masquerading Exchange Server Impersonation via PrivExchange Relay Attack (via security)

Windows Process Creation: Command-Line Kerberos Coercion Signature via DNS SPN Spoofing

Zeek DNS detects base64 credential target pattern consistent with Kerberos DNS object spoofing

Windows DNS Query with Kerberos Coercion Signature via DNS Object SPN Spoofing

Windows LPE Attempt via TabTip CLSID Using Microsoft-Windows-DistributedCOM (Event ID 10001)

Zeek DCE/RPC efs* Operations Indicative of EFS Remote Protocol Use

Windows Process Creation: ADCSPwn Command-Line Parameters Indicating ADCS Abuse

Windows WinDivert Driver Load via Image or Known IMPHASHes

Windows Process Creation: Impacket HackTool Binary Execution via Named Image Matches

Suspicious LLMNR and NBT-NS Poisoning Tooling via ALPHA SPIDER (via process_creation)

Pivot detection · T1557.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

Full detection rule

Unlock this rule to view and copy it

The detection logic is included with a plan. Everything else — context, mappings and implementation details — stays free on this page.

Sign in for 3 free unlocks

Signing in gives you 3 unlocks to spend on any rule in the library. No card, and they do not expire.

Also included

Unlocked rules convert on this page — to Splunk SPL or Splunk — Raw Index SPL or Microsoft Sentinel KQL or Microsoft Sentinel ASIM ASIM KQL or Microsoft Defender XDR KQL or Elastic Security KQL or Elastic Security Lucene or Elastic Security ES|QL or CrowdStrike Falcon CQL or SentinelOne PowerQuery or Palo Alto Cortex XDR XQL or Carbon Black Cloud Platform Search or Carbon Black EDR Process Search or Google Security Operations UDM Search or IBM QRadar AQL or Sumo Logic Cloud SIEM Rules expression or Rapid7 InsightIDR LEQL or Graylog Search or OpenSearch Lucene or OpenSearch PPL PPL or Grafana Loki LogQL or SQLite SQL or Zircolite SQLite — with the log-source profile the engine picked, the field map it used, and everything it could not express. Converting a rule you have unlocked costs no further credit.

See it run on a free rule →Convert your own rule →