Caramel Tsunami Actor IOC - July 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/SOURGUM.csv"] with (format="csv", ignoreFirstRecord=True);
let file_path1 = (iocs | where Type =~ "filepath1" | project IoC);
let file_path2 = (iocs | where Type =~ "filepath2" | project IoC);
let file_path3 = (iocs | where Type =~ "filepath3" | project IoC);
let reg_key = (iocs | where Type =~ "regkey" | project IoC);
WindowsEvent
| where EventID == 4688 and (EventData has_any (file_path1) or EventData has_any (file_path2) or  EventData has_any (file_path3) or EventData has_any ('reg add') or EventData has_any (reg_key) )
| extend CommandLine = tostring(EventData.CommandLine)
| extend NewProcessName = tostring(EventData.NewProcessName)
| extend ParentProcessName = tostring(EventData.ParentProcessName)
| where (CommandLine has_any (file_path1)) or
  (CommandLine has_any (file_path3)) or
  (CommandLine has 'reg add' and CommandLine has_any (reg_key) and CommandLine has_any (file_path2)) or 
  (NewProcessName has_any (file_path1)) or
  (NewProcessName has_any (file_path3)) or
  (ParentProcessName has_any (file_path1)) or 
  (ParentProcessName has_any (file_path3)) 
| extend Account = strcat(EventData.SubjectDomainName,"\\", EventData.SubjectUserName)
| extend NewProcessId = tostring(EventData.NewProcessId)
| extend IP = tostring(EventData.IpAddress)
| project TimeGenerated, Computer, NewProcessName, ParentProcessName, Account, NewProcessId, Type, IP
| extend Alert = 'SOURGUM IOC detected'
| 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)