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DITEKSHEN_MALWARE_Win_Rdpcredsstealerinjector

Detects RDP Credentials Stealer injector

MalwareRdpcredsstealerinjectorditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekSHen
Date
2020-11-06
Modified
2024-11-01
Score / Quality
75 / 75

What this rule detects

Detects RDP Credentials Stealer injector

Associated malware family: Rdpcredsstealerinjector.

Targets: Windows PE.

It defines 5 patterns (4 text, 0 hex, 1 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-rdpcredsstealerinjector.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Rdpcredsstealerinjector : FILE
{
	meta:
		description = "Detects RDP Credentials Stealer injector"
		author = "ditekSHen"
		id = "221b7d64-6585-5f3a-bffa-bde05390db73"
		date = "2020-11-06"
		modified = "2024-11-01"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L10994-L11007"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "0dfade8dde987f5134158b7c4abc3eaf8dcece86e1ff2ab1da4466da316939a2"
		score = 75
		quality = 75
		tags = "FILE"
		clamav1 = "MALWARE.Win.Trojan.RDPCredsStealer-Injector"

	strings:
		$s1 = "\\APIHookInjectorBin\\" ascii
		$s2 = "\\RDPCredsStealerDLL.dll" ascii
		$s3 = "DLL Injected" ascii
		$s4 = "Code Injected" ascii
		$s5 = /(OpenProcess|VirtualAllocEx|CreateRemoteThread)\(\) failed:/ fullword ascii

	condition:
		uint16( 0 ) == 0x5a4d and 3 of them
}

Strings (5 patterns)

IdentifierTypeValueModifiers
$s1text"\\APIHookInjectorBin\\"ascii
$s2text"\\RDPCredsStealerDLL.dll"ascii
$s3text"DLL Injected"ascii
$s4text"Code Injected"ascii
$s5regex/(OpenProcess|VirtualAllocEx|CreateRemoteThread)\(\) failed:/fullword ascii

Condition

uint16( 0 ) == 0x5a4d and 3 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 3 patterns in the rule must match.

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References

Licence & attribution

Author: ditekSHen

Source repository: ditekSHen detection @ e76c93dcde

Licence: BSD 2-Clause License (repository licence)

Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).

Original rule

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

Rule id: 221b7d64-6585-5f3a-bffa-bde05390db73

Metadata

clamav1MALWARE.Win.Trojan.RDPCredsStealer-Injector

Tags:FILE

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