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SIGNATURE_BASE_HKTL_NET_GUID_Offensivecsharp

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 12 patterns (12 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
hktl-net-guid-offensivecsharp.yarDetection Rule License 1.1
rule SIGNATURE_BASE_HKTL_NET_GUID_Offensivecsharp : FILE
{
	meta:
		description = "Detects c# red/black-team tools via typelibguid"
		author = "Arnim Rupp (https://github.com/ruppde)"
		id = "339f6858-6076-5320-ba5f-2903e642ea42"
		date = "2020-12-13"
		modified = "2025-08-15"
		reference = "https://github.com/diljith369/OffensiveCSharp"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/gen_github_net_redteam_tools_guids.yar#L650-L674"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		logic_hash = "64beb345845aeb7083a2c35d94fa433e95dd810b82c0cf392dd5e3de3bb5b110"
		score = 75
		quality = 85
		tags = "FILE"
		license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"

	strings:
		$typelibguid0lo = "6c3fbc65-b673-40f0-b1ac-20636df01a85" ascii wide
		$typelibguid1lo = "2bad9d69-ada9-4f1e-b838-9567e1503e93" ascii wide
		$typelibguid2lo = "512015de-a70f-4887-8eae-e500fd2898ab" ascii wide
		$typelibguid3lo = "1ee4188c-24ac-4478-b892-36b1029a13b3" ascii wide
		$typelibguid4lo = "5c6b7361-f9ab-41dc-bfa0-ed5d4b0032a8" ascii wide
		$typelibguid5lo = "048a6559-d4d3-4ad8-af0f-b7f72b212e90" ascii wide
		$typelibguid6lo = "3412fbe9-19d3-41d8-9ad2-6461fcb394dc" ascii wide
		$typelibguid7lo = "9ea4e0dc-9723-4d93-85bb-a4fcab0ad210" ascii wide
		$typelibguid8lo = "6d2b239c-ba1e-43ec-8334-d67d52b77181" ascii wide
		$typelibguid9lo = "42e8b9e1-0cf4-46ae-b573-9d0563e41238" ascii wide
		$typelibguid10lo = "0d15e0e3-bcfd-4a85-adcd-0e751dab4dd6" ascii wide
		$typelibguid11lo = "644dfd1a-fda5-4948-83c2-8d3b5eda143a" ascii wide

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

Strings (12 patterns)

IdentifierTypeValueModifiers
$typelibguid0lotext"6c3fbc65-b673-40f0-b1ac-20636df01a85"ascii wide
$typelibguid1lotext"2bad9d69-ada9-4f1e-b838-9567e1503e93"ascii wide
$typelibguid2lotext"512015de-a70f-4887-8eae-e500fd2898ab"ascii wide
$typelibguid3lotext"1ee4188c-24ac-4478-b892-36b1029a13b3"ascii wide
$typelibguid4lotext"5c6b7361-f9ab-41dc-bfa0-ed5d4b0032a8"ascii wide
$typelibguid5lotext"048a6559-d4d3-4ad8-af0f-b7f72b212e90"ascii wide
$typelibguid6lotext"3412fbe9-19d3-41d8-9ad2-6461fcb394dc"ascii wide
$typelibguid7lotext"9ea4e0dc-9723-4d93-85bb-a4fcab0ad210"ascii wide
$typelibguid8lotext"6d2b239c-ba1e-43ec-8334-d67d52b77181"ascii wide
$typelibguid9lotext"42e8b9e1-0cf4-46ae-b573-9d0563e41238"ascii wide
$typelibguid10lotext"0d15e0e3-bcfd-4a85-adcd-0e751dab4dd6"ascii wide
$typelibguid11lotext"644dfd1a-fda5-4948-83c2-8d3b5eda143a"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: 339f6858-6076-5320-ba5f-2903e642ea42

Tags:FILE

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