Microsoft Sentinel high experimental kql

SUNBURST and SUPERNOVA backdoor hashes

Identifies SolarWinds SUNBURST and SUPERNOVA backdoor file hash IOCs in DeviceFileEvents References: - https://www.fireeye.com/blog/threat-research/2020/12/evasive-attacker-leverages-solarwinds-supply-chain-compromises-with-sunburst-backdoor.html - https://gist.github.com/olafhartong/71ffdd4cab4b6acd5cbcd1a0691ff82f

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Detection Logic

let SunburstMD5=dynamic(["b91ce2fa41029f6955bff20079468448","02af7cec58b9a5da1c542b5a32151ba1","2c4a910a1299cdae2a4e55988a2f102e","846e27a652a5e1bfbd0ddd38a16dc865","4f2eb62fa529c0283b28d05ddd311fae"]);
let SupernovaMD5="56ceb6d0011d87b6e4d7023d7ef85676";
DeviceFileEvents
| where MD5 in(SunburstMD5) or MD5 in(SupernovaMD5)
| extend HashAlgorithm = "MD5"
| extend HostName = tostring(split(DeviceName, ".")[0]), DomainIndex = toint(indexof(DeviceName, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(DeviceName, DomainIndex + 1), DeviceName)

Field Validations

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