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YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_HKTL_NET_GUID_Certify

Detects .NET red/black-team tools via typelibguid

Hack toolSignature Base (Florian Roth / Nextron)Detection Rule License 1.1Compiles with YARA-X
Author
Arnim Rupp (https://github.com/ruppde)
Date
2023-03-06
Modified
2025-08-11
Score / Quality
75 / 85

What this rule detects

Detects .NET red/black-team tools via typelibguid

Targets: Windows PE.

It defines 2 patterns (2 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
hktl-net-guid-certify.yarDetection Rule License 1.1
rule SIGNATURE_BASE_HKTL_NET_GUID_Certify : FILE
{
	meta:
		description = "Detects .NET red/black-team tools via typelibguid"
		author = "Arnim Rupp (https://github.com/ruppde)"
		id = "69f120fe-bd4d-59ba-b1b9-528ab300e450"
		date = "2023-03-06"
		modified = "2025-08-11"
		reference = "https://github.com/GhostPack/Certify"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/gen_github_net_redteam_tools_guids.yar#L4512-L4527"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		hash = "da585a8d4985082873cb86204d546d3f53668e034c61e42d247b11e92b5e8fc3"
		logic_hash = "cc31eb8f11f8c48d8c6d34c343c273ac085fdac214ffc7521d26b4a19edd0c4c"
		score = 75
		quality = 85
		tags = "FILE"
		license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"

	strings:
		$typelibguid0_v1 = "64524ca5-e4d0-41b3-acc3-3bdbefd40c97" ascii wide
		$typelibguid0_v2 = "15cfadd8-5f6c-424b-81dc-c028312d025f" ascii wide

	condition:
		( uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550 ) and any of them
}

Strings (2 patterns)

IdentifierTypeValueModifiers
$typelibguid0_v1text"64524ca5-e4d0-41b3-acc3-3bdbefd40c97"ascii wide
$typelibguid0_v2text"15cfadd8-5f6c-424b-81dc-c028312d025f"ascii wide

Condition

( uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550 ) and any of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least one pattern in the rule must match.

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References

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

  • da585a8d4985082873cb86204d546d3f53668e034c61e42d247b11e92b5e8fc3

Licence & attribution

Author: Arnim Rupp (https://github.com/ruppde)

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

Licence: Detection Rule License 1.1 (stated in the rule's own meta)

“Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE”

Original rule

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

Rule id: 69f120fe-bd4d-59ba-b1b9-528ab300e450

Tags:FILE

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