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YARA · ditekSHen detection

DITEKSHEN_MALWARE_Win_Arkei

Detect Arkei infostealer variants

MalwareArkeiditekSHen 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

Detect Arkei infostealer variants

Associated malware family: Arkei.

Targets: Windows PE.

It defines 9 patterns (9 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-arkei.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Arkei : FILE
{
	meta:
		description = "Detect Arkei infostealer variants"
		author = "ditekSHen"
		id = "d32a27bf-abb9-553c-9913-d675c340a5c5"
		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#L210-L226"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "8a79bcc6ac94900c8a8913b2e81424bf900bbac416f44a91db6f208f23980155"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "C:\\Windows\\System32\\cmd.exe" fullword ascii wide
		$s2 = "/c taskkill /im " fullword ascii
		$s3 = "card_number_encrypted FROM credit_cards" ascii
		$s4 = "\\wallet.dat" ascii
		$s5 = "Arkei/" wide
		$s6 = "files\\passwords." ascii wide
		$s7 = "files\\cc_" ascii wide
		$s8 = "files\\autofill_" ascii wide
		$s9 = "files\\cookies_" ascii wide

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

Strings (9 patterns)

IdentifierTypeValueModifiers
$s1text"C:\\Windows\\System32\\cmd.exe"fullword ascii wide
$s2text"/c taskkill /im "fullword ascii
$s3text"card_number_encrypted FROM credit_cards"ascii
$s4text"\\wallet.dat"ascii
$s5text"Arkei/"wide
$s6text"files\\passwords."ascii wide
$s7text"files\\cc_"ascii wide
$s8text"files\\autofill_"ascii wide
$s9text"files\\cookies_"ascii wide

Condition

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

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • All 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: d32a27bf-abb9-553c-9913-d675c340a5c5

Tags:FILE

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