Anvilogic high experimental spl

Certutil Obfuscate_Encode Files [splunk-powershell]

Certutil can be used to encode files to evade defensive measures. -- Threat Actor Association: APT29/Nobelium/Cozy Bear, Arid Viper/APT C-23, BlackTech - Software Association: Conti

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Detection Logic

`get_endpoint_data` `get_endpoint_data_powershell` (TERM(EventCode=4104) 
OR "<EventID>4104<" 
OR TERM(EventCode=4103) 
OR "<EventID>4103<") "certutil" TERM(encode)
| table _time, host, user, signature_id, process
| bin span=1s
| stats values(*) as * by _time, host

Field Validations

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