Detection rules › Sigma

DNS Exfiltration and Tunneling Tools Execution

Severity
high
Author
Daniil Yugoslavskiy, oscd.community
Source
upstream

Well-known DNS Exfiltration tools execution

MITRE ATT&CK coverage

TacticTechniques
Command & ControlT1071.004 Application Layer Protocol: DNS, T1132.001 Data Encoding: Standard Encoding
ExfiltrationT1048.001 Exfiltration Over Alternative Protocol: Exfiltration Over Symmetric Encrypted Non-C2 Protocol

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation
Security-Auditing4688A new process has been created.

Stages and Predicates

Stage 1: selection

or:
Image|endswith: '\iodine.exe'
Image|contains: '\dnscat2'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
Imageends_with
  • \iodine.exe
Imagematch
  • \dnscat2