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DITEKSHEN_MALWARE_Win_Dlinjector07

Detects downloader injector

MalwareDlinjector07ditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekSHen
Date
2020-11-06
Modified
2024-11-01
Score / Quality
75 / 73

What this rule detects

Detects downloader injector

Associated malware family: Dlinjector07.

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-dlinjector07.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Dlinjector07 : FILE
{
	meta:
		description = "Detects downloader injector"
		author = "ditekSHen"
		id = "244ad6fb-8769-5b57-84e2-66f51fccb32a"
		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#L10009-L10025"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "aef43b59ef7d0d62a853280ec1588a48d6c21da5218b7fd7e6ab1aa0f048896b"
		score = 75
		quality = 73
		tags = "FILE"

	strings:
		$x1 = "23lenrek[||]lldtn[||]daerhTemuseR[||]txetnoCdaerhTteS46woW[||]txetnoCdaerhTteS[||]txetnoCdaerhTteG46woW[||]txetnoCdaerhTteG[||]xEcollAlautriV[||]yromeMssecorPetirW[||]yromeMssecorPdaeR[||]noitceSfOweiVpamnUwZ[||]AssecorPetaerC" wide
		$l1 = "[||]" wide
		$r1 = "yromeMssecorPetirW" wide
		$r2 = "xEcollAlautriV" wide
		$r3 = "daerhTemuseR" ascii wide
		$r4 = "noitceSfOweiVpamnUwZ" wide
		$s1 = "Debugger Detected" fullword wide
		$s2 = "payload" fullword ascii
		$s3 = "_ENABLE_PROFILING" fullword wide

	condition:
		uint16( 0 ) == 0x5a4d and ( 1 of ( $x* ) or ( 1 of ( $l* ) and 2 of ( $r* ) ) or 6 of them )
}

Strings (9 patterns)

IdentifierTypeValueModifiers
$x1text"23lenrek[||]lldtn[||]daerhTemuseR[||]txetnoCdaerhTteS46woW[||]txetnoCdaerhTteS[||]txetnoCdaerhTteG46woW[||]txetnoCdaerhTteG[||]xEcollAlautriV[||]yromeMssecorPe …wide
$l1text"[||]"wide
$r1text"yromeMssecorPetirW"wide
$r2text"xEcollAlautriV"wide
$r3text"daerhTemuseR"ascii wide
$r4text"noitceSfOweiVpamnUwZ"wide
$s1text"Debugger Detected"fullword wide
$s2text"payload"fullword ascii
$s3text"_ENABLE_PROFILING"fullword wide

Condition

uint16( 0 ) == 0x5a4d and ( 1 of ( $x* ) or ( 1 of ( $l* ) and 2 of ( $r* ) ) or 6 of them )

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 1 patterns in ( $x* ) must match.
  • At least 1 patterns in ( $l* ) must match.
  • At least 2 patterns in ( $r* ) must match.
  • At least 6 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: 244ad6fb-8769-5b57-84e2-66f51fccb32a

Tags:FILE

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