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DITEKSHEN_MALWARE_Win_Dlinjector05

Detects downloader / injector (NiceProcess)

MalwareDlinjector05ditekSHen 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 (NiceProcess)

Associated malware family: Dlinjector05.

Targets: Windows PE.

It defines 7 patterns (6 text, 1 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

malware-win-dlinjector05.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Dlinjector05 : FILE
{
	meta:
		description = "Detects downloader / injector (NiceProcess)"
		author = "ditekSHen"
		id = "857eb13b-a882-5326-b7aa-4d2fcd0b6425"
		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#L8141-L8158"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "5345c2b03e14b7324a13bac0da783eec8c30da18043c1b2d46162e5b511fae63"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "pidhtmpfile.tmp" fullword ascii
		$s2 = "pidhtmpdata.tmp" fullword ascii
		$s3 = "pidHTSIG" fullword ascii
		$s4 = "Taskmgr.exe" fullword ascii
		$s5 = "[HP][" ascii
		$s6 = "[PP][" ascii
		$s7 = { 70 69 64 68 74 6d 70 66 69 6c 65 2e 74 6d 70 00
                2e 64 6c 6c 00 00 00 00 70 69 64 48 54 53 49 47
                00 00 00 00 ?? ?? 00 00 54 61 73 6b 6d 67 72 2e
                65 78 65 }

	condition:
		uint16( 0 ) == 0x5a4d and 4 of them
}

Strings (7 patterns)

IdentifierTypeValueModifiers
$s1text"pidhtmpfile.tmp"fullword ascii
$s2text"pidhtmpdata.tmp"fullword ascii
$s3text"pidHTSIG"fullword ascii
$s4text"Taskmgr.exe"fullword ascii
$s5text"[HP]["ascii
$s6text"[PP]["ascii
$s7hex{ 70 69 64 68 74 6d 70 66 69 6c 65 2e 74 6d 70 00 2e 64 6c 6c 00 00 00 00 70 69 64 48 54 53 49 47 00 00 00 00 ?? ?? 00 00 54 61 …

Condition

uint16( 0 ) == 0x5a4d and 4 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 4 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: 857eb13b-a882-5326-b7aa-4d2fcd0b6425

Tags:FILE