Detectioncriticaltest
Suspicious Cobalt Strike DNS Beaconing - DNS Client
Detects a program that invoked suspicious DNS queries known from Cobalt Strike beacons
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Launch
Nasreddine Bencherchali (Nextron Systems)Created Mon Jan 160d18728b-f5bf-4381-9dcf-915539fff6c2windows
Log Source
Windowsdns-client
ProductWindows← raw: windows
Servicedns-client← raw: dns-client
Definition
Requirements: Microsoft-Windows-DNS Client Events/Operational Event Log must be enabled/collected in order to receive the events.
Detection Logic
Detection Logic3 selectors
detection:
selection_eid:
EventID: 3008
selection_query_1:
QueryName|startswith:
- 'aaa.stage.'
- 'post.1'
selection_query_2:
QueryName|contains: '.stage.123456.'
condition: selection_eid and 1 of selection_query_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
0d18728b-f5bf-4381-9dcf-915539fff6c2
Status
test
Level
critical
Type
Detection
Created
Mon Jan 16
Path
rules/windows/builtin/dns_client/win_dns_client_mal_cobaltstrike.yml
Raw Tags
attack.t1071.004attack.command-and-control