Chia_Crypto_Mining IOC - June 2021

Requête originale, sans modification.

let iocs = externaldata(DateAdded:string,IoC:string,Type:string,TLP:string) [@"https://raw.githubusercontent.com/Azure/Azure-Sentinel/master/Sample%20Data/Feeds/ChiaCryptoIOC.csv"] with (format="csv", ignoreFirstRecord=True);
let process = (iocs | where Type =~ "process" | project IoC);
//This query uses sysmon data, sections that have - | where Source == "Microsoft-Windows-Sysmon" - may need to be updated with latest
WindowsEvent
| where EventID == '4688' and EventData has_any (process)
| extend NewProcessName = tostring(EventData.NewProcessName)
| where NewProcessName  has_any (process)
| extend ParentProcessName = tostring(EventData.ParentProcessName)
  , Account =  strcat(tostring(EventData.SubjectDomainName),"\\", tostring(EventData.SubjectUserName))
  , NewProcessId = tostring(EventData.NewProcessId)
| extend Computer, Account, File = tostring(split(NewProcessName, '\\', -1)[-1]), AlertDetail = 'Chia crypto IOC detected'
| extend FilePath = replace_string(NewProcessName, File, '')
| project TimeGenerated, File, AlertDetail, FilePath,Computer, NewProcessName, ParentProcessName, Account, NewProcessId, Type
| extend AccountName = tostring(split(Account, @'\')[1]), AccountNTDomain = tostring(split(Account, @'\')[0])
| extend HostName = tostring(split(Computer, ".")[0]), DomainIndex = toint(indexof(Computer, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(Computer, DomainIndex + 1), Computer)