Possible TrickBot DNS Tunneling C2 to westurn.in (via dns_query)

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.004DNS
Exfiltration
Impact

What it detects

This rule detects DNS based command and control from the analyzed TrickBot variant which tunnels XOR encrypted commands as hex encoded labels beneath the westurn.in domain. Queries embed data in long subdomains separated every sixty three characters. Any resolution of this domain indicates the tunneling channel.

Reporting behind it

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Possible TrickBot DNS Tunneling C2 to westurn.in (via dns_query)

Pivot detection · T1071.004 · 9 related

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

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