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YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_Wce

wce

GenericSignature Base (Florian Roth / Nextron)Detection Rule License 1.1Compiles with YARA-X
Author
Benjamin DELPY (gentilkiwi)
Date
2020-08-10
Modified
2023-12-05
Score / Quality
75 / 85

What this rule detects

wce

It defines 3 patterns (0 text, 3 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
wce.yarDetection Rule License 1.1
rule SIGNATURE_BASE_Wce
{
	meta:
		description = "wce"
		author = "Benjamin DELPY (gentilkiwi)"
		id = "857981ee-3f57-580b-8bfd-8d2109298e27"
		date = "2020-08-10"
		modified = "2023-12-05"
		reference = "https://github.com/Neo23x0/signature-base"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/gen_mimikatz.yar#L76-L89"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		logic_hash = "a16db99dcaaf1b6c33a738aab4f4d3812366258bc2f6dd32250ee1b1a0616f1c"
		score = 75
		quality = 85
		tags = ""
		tool_author = "Hernan Ochoa (hernano)"

	strings:
		$hex_legacy = { 8b ff 55 8b ec 6a 00 ff 75 0c ff 75 08 e8 [0-3] 5d c2 08 00 }
		$hex_x86 = { 8d 45 f0 50 8d 45 f8 50 8d 45 e8 50 6a 00 8d 45 fc 50 [0-8] 50 72 69 6d 61 72 79 00 }
		$hex_x64 = { ff f3 48 83 ec 30 48 8b d9 48 8d 15 [0-16] 50 72 69 6d 61 72 79 00 }

	condition:
		any of them
}

Strings (3 patterns)

IdentifierTypeValueModifiers
$hex_legacyhex{ 8b ff 55 8b ec 6a 00 ff 75 0c ff 75 08 e8 [0-3] 5d c2 08 00 }
$hex_x86hex{ 8d 45 f0 50 8d 45 f8 50 8d 45 e8 50 6a 00 8d 45 fc 50 [0-8] 50 72 69 6d 61 72 79 00 }
$hex_x64hex{ ff f3 48 83 ec 30 48 8b d9 48 8d 15 [0-16] 50 72 69 6d 61 72 79 00 }

Condition

any of them

In plain words (Heuristic)

  • At least one pattern in the rule must match.

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References

Licence & attribution

Author: Benjamin DELPY (gentilkiwi)

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: 857981ee-3f57-580b-8bfd-8d2109298e27

Metadata

tool_authorHernan Ochoa (hernano)

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