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YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_HKTL_NET_GUID_Sharppack

Detects c# 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
2020-12-13
Modified
2025-08-15
Score / Quality
75 / 85

What this rule detects

Detects c# red/black-team tools via typelibguid

Targets: Windows PE.

It defines 8 patterns (8 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
hktl-net-guid-sharppack.yarDetection Rule License 1.1
rule SIGNATURE_BASE_HKTL_NET_GUID_Sharppack : FILE
{
	meta:
		description = "Detects c# red/black-team tools via typelibguid"
		author = "Arnim Rupp (https://github.com/ruppde)"
		id = "633d074a-b8c2-5148-ad80-6226b99be818"
		date = "2020-12-13"
		modified = "2025-08-15"
		reference = "https://github.com/Lexus89/SharpPack"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/gen_github_net_redteam_tools_guids.yar#L1371-L1391"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		logic_hash = "43701a68c6bbb5fc1217f9b47096dcc87d2b1ffa9399ba50df9f7e99cec2c0d8"
		score = 75
		quality = 85
		tags = "FILE"
		license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"

	strings:
		$typelibguid1lo = "b59c7741-d522-4a41-bf4d-9badddebb84a" ascii wide
		$typelibguid2lo = "fd6bdf7a-fef4-4b28-9027-5bf750f08048" ascii wide
		$typelibguid3lo = "6dd22880-dac5-4b4d-9c91-8c35cc7b8180" ascii wide
		$typelibguid5lo = "f3037587-1a3b-41f1-aa71-b026efdb2a82" ascii wide
		$typelibguid6lo = "41a90a6a-f9ed-4a2f-8448-d544ec1fd753" ascii wide
		$typelibguid7lo = "3787435b-8352-4bd8-a1c6-e5a1b73921f4" ascii wide
		$typelibguid8lo = "fdd654f5-5c54-4d93-bf8e-faf11b00e3e9" ascii wide
		$typelibguid9lo = "aec32155-d589-4150-8fe7-2900df4554c8" ascii wide

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

Strings (8 patterns)

IdentifierTypeValueModifiers
$typelibguid1lotext"b59c7741-d522-4a41-bf4d-9badddebb84a"ascii wide
$typelibguid2lotext"fd6bdf7a-fef4-4b28-9027-5bf750f08048"ascii wide
$typelibguid3lotext"6dd22880-dac5-4b4d-9c91-8c35cc7b8180"ascii wide
$typelibguid5lotext"f3037587-1a3b-41f1-aa71-b026efdb2a82"ascii wide
$typelibguid6lotext"41a90a6a-f9ed-4a2f-8448-d544ec1fd753"ascii wide
$typelibguid7lotext"3787435b-8352-4bd8-a1c6-e5a1b73921f4"ascii wide
$typelibguid8lotext"fdd654f5-5c54-4d93-bf8e-faf11b00e3e9"ascii wide
$typelibguid9lotext"aec32155-d589-4150-8fe7-2900df4554c8"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

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: 633d074a-b8c2-5148-ad80-6226b99be818

Tags:FILE

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