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YARA · ditekSHen detection

DITEKSHEN_MALWARE_Win_Dlagent14

Detects downloader injector

MalwareDlagent14ditekSHen 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 downloader injector

Associated malware family: Dlagent14.

Targets: Windows PE.

It defines 6 patterns (6 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-dlagent14.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Dlagent14 : FILE
{
	meta:
		description = "Detects downloader injector"
		author = "ditekSHen"
		id = "6f80567e-b89a-557d-a282-b61c0b99625e"
		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#L6365-L6378"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "2806b553635dbf96e9c00d3554dd5732df64200b3ae2c4845a2675218bd56387"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "%ProgramData%\\AVG" fullword wide
		$s2 = "%ProgramData%\\AVAST Software" fullword wide
		$s3 = "%wS\\%wS.vbs" fullword wide
		$s4 = "%wS\\%wS.exe" fullword wide
		$s5 = "CL,FR,US,CY,FI,HR,HU,RO,PL,IT,PT,ES,CA,DK,AT,NL,AU,AR,NP,SE,BE,NZ,SK,GR,BG,NO,GE" ascii
		$s6 = "= CreateObject(\"Microsoft.XMLHTTP\")" ascii

	condition:
		uint16( 0 ) == 0x5a4d and 5 of them
}

Strings (6 patterns)

IdentifierTypeValueModifiers
$s1text"%ProgramData%\\AVG"fullword wide
$s2text"%ProgramData%\\AVAST Software"fullword wide
$s3text"%wS\\%wS.vbs"fullword wide
$s4text"%wS\\%wS.exe"fullword wide
$s5text"CL,FR,US,CY,FI,HR,HU,RO,PL,IT,PT,ES,CA,DK,AT,NL,AU,AR,NP,SE,BE,NZ,SK,GR,BG,NO,GE"ascii
$s6text"= CreateObject(\"Microsoft.XMLHTTP\")"ascii

Condition

uint16( 0 ) == 0x5a4d and 5 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 5 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: 6f80567e-b89a-557d-a282-b61c0b99625e

Tags:FILE

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