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YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_HKTL_Sentinelone_Remotepotato0_Privesc

Detects RemotePotato0 binary

Hack toolSignature Base (Florian Roth / Nextron)Detection Rule License 1.1Compiles with YARA-X (with warnings)
Author
SentinelOne
Date
2021-04-26
Modified
2023-12-05
Score / Quality
75 / 79

What this rule detects

Detects RemotePotato0 binary

Targets: Windows PE.

It defines 5 patterns (4 text, 1 hex, 0 regex).

YARA-X says: warning[text_as_hex]: hex pattern could be written as text literal

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
hktl-sentinelone-remotepotato0-privesc.yarDetection Rule License 1.1
rule SIGNATURE_BASE_HKTL_Sentinelone_Remotepotato0_Privesc : FILE
{
	meta:
		description = "Detects RemotePotato0 binary"
		author = "SentinelOne"
		id = "f6dffd6b-e794-5c4a-9700-5c2022168f44"
		date = "2021-04-26"
		modified = "2023-12-05"
		reference = "https://labs.sentinelone.com/relaying-potatoes-dce-rpc-ntlm-relay-eop"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/gen_remote_potato0.yar#L2-L17"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		logic_hash = "f3a3a917908af6260f40b217f966750a095140abb6bf85cf3a728725bc16996f"
		score = 75
		quality = 79
		tags = "FILE"

	strings:
		$import1 = "CoGetInstanceFromIStorage"
		$istorage_clsid = "{00000306-0000-0000-c000-000000000046}" nocase wide ascii
		$meow_header = { 4d 45 4f 57 }
		$clsid1 = "{11111111-2222-3333-4444-555555555555}" wide ascii
		$clsid2 = "{5167B42F-C111-47A1-ACC4-8EABE61B0B54}" nocase wide ascii

	condition:
		( uint16( 0 ) == 0x5A4D ) and $import1 and $istorage_clsid and $meow_header and 1 of ( $clsid* )
}

Strings (5 patterns)

IdentifierTypeValueModifiers
$import1text"CoGetInstanceFromIStorage"
$istorage_clsidtext"{00000306-0000-0000-c000-000000000046}"nocase wide ascii
$meow_headerhex{ 4d 45 4f 57 }
$clsid1text"{11111111-2222-3333-4444-555555555555}"wide ascii
$clsid2text"{5167B42F-C111-47A1-ACC4-8EABE61B0B54}"nocase wide ascii

Condition

( uint16( 0 ) == 0x5A4D ) and $import1 and $istorage_clsid and $meow_header and 1 of ( $clsid* )

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 1 patterns in ( $clsid* ) must match.
  • Pattern $import1 must be present.
  • Pattern $istorage_clsid must be present.
  • Pattern $meow_header must be present.

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References

Licence & attribution

Author: SentinelOne

Source repository: Signature Base (Florian Roth / Nextron) @ 94a1c48d7a

Licence: Detection Rule License 1.1 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: f6dffd6b-e794-5c4a-9700-5c2022168f44

Tags:FILE