Skip to content
yararules.org
Menu

YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_HKTL_NET_GUID_Xploit

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
2020-12-21
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 11 patterns (11 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
hktl-net-guid-xploit.yarDetection Rule License 1.1
rule SIGNATURE_BASE_HKTL_NET_GUID_Xploit : FILE
{
	meta:
		description = "Detects c# red/black-team tools via typelibguid"
		author = "Arnim Rupp (https://github.com/ruppde)"
		id = "11ba6c14-06b6-5d9f-ac69-08ae506877e7"
		date = "2020-12-21"
		modified = "2025-08-15"
		reference = "https://github.com/shargon/Xploit"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/gen_github_net_redteam_tools_guids.yar#L2366-L2389"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		logic_hash = "0b622acce9ff8186266c69d4ca097902027f5ca652408bfa4ec36fa145e14737"
		score = 75
		quality = 85
		tags = "FILE"
		license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"

	strings:
		$typelibguid0lo = "4545cfde-9ee5-4f1b-b966-d128af0b9a6e" ascii wide
		$typelibguid1lo = "33849d2b-3be8-41e8-a1e2-614c94c4533c" ascii wide
		$typelibguid2lo = "c2dc73cc-a959-4965-8499-a9e1720e594b" ascii wide
		$typelibguid3lo = "77059fa1-4b7d-4406-bc1a-cb261086f915" ascii wide
		$typelibguid4lo = "a4a04c4d-5490-4309-9c90-351e5e5fd6d1" ascii wide
		$typelibguid5lo = "ca64f918-3296-4b7d-9ce6-b98389896765" ascii wide
		$typelibguid6lo = "10fe32a0-d791-47b2-8530-0b19d91434f7" ascii wide
		$typelibguid7lo = "679bba57-3063-4f17-b491-4f0a730d6b02" ascii wide
		$typelibguid8lo = "0981e164-5930-4ba0-983c-1cf679e5033f" ascii wide
		$typelibguid9lo = "2a844ca2-5d6c-45b5-963b-7dca1140e16f" ascii wide
		$typelibguid10lo = "7d75ca11-8745-4382-b3eb-c41416dbc48c" ascii wide

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

Strings (11 patterns)

IdentifierTypeValueModifiers
$typelibguid0lotext"4545cfde-9ee5-4f1b-b966-d128af0b9a6e"ascii wide
$typelibguid1lotext"33849d2b-3be8-41e8-a1e2-614c94c4533c"ascii wide
$typelibguid2lotext"c2dc73cc-a959-4965-8499-a9e1720e594b"ascii wide
$typelibguid3lotext"77059fa1-4b7d-4406-bc1a-cb261086f915"ascii wide
$typelibguid4lotext"a4a04c4d-5490-4309-9c90-351e5e5fd6d1"ascii wide
$typelibguid5lotext"ca64f918-3296-4b7d-9ce6-b98389896765"ascii wide
$typelibguid6lotext"10fe32a0-d791-47b2-8530-0b19d91434f7"ascii wide
$typelibguid7lotext"679bba57-3063-4f17-b491-4f0a730d6b02"ascii wide
$typelibguid8lotext"0981e164-5930-4ba0-983c-1cf679e5033f"ascii wide
$typelibguid9lotext"2a844ca2-5d6c-45b5-963b-7dca1140e16f"ascii wide
$typelibguid10lotext"7d75ca11-8745-4382-b3eb-c41416dbc48c"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.

Test this rule in your browser

Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.

Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

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: 11ba6c14-06b6-5d9f-ac69-08ae506877e7

Tags:FILE

Related rules