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EMBEERESEARCH_Win_Redline_Loader_Dec_2023

Patterns observed in redline loader

MalwareRedLineEmbee ResearchDetection Rule License 1.1Compiles with YARA-X
Author
Matthew @ Embee_Research
Date
2023-12-24
Modified
2023-12-29
Score / Quality
75 / 75

What this rule detects

Patterns observed in redline loader

Associated malware family: RedLine.

It defines 4 patterns (3 text, 1 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-redline-loader-dec-2023.yarDetection Rule License 1.1
rule EMBEERESEARCH_Win_Redline_Loader_Dec_2023
{
	meta:
		description = "Patterns observed in redline loader"
		author = "Matthew @ Embee_Research"
		id = "59d933a8-8ccd-565f-b379-e0bf6c3d3111"
		date = "2023-12-24"
		modified = "2023-12-29"
		reference = "https://github.com/embee-research/Yara-detection-rules/"
		source_url = "https://github.com/embee-research/Yara-detection-rules//blob/ac56d6f6fd2a30c8cb6e5c0455d6519210a8b0f4/Rules/win_redline_loader_dec_2023.yar#L1-L20"
		license_url = "N/A"
		hash = ""
		logic_hash = "831c32f9998b97f7ceeb14df73a264a998df5f8800aaa5271755aaaeac070010"
		score = 75
		quality = 75
		tags = ""

	strings:
		$s1 = {8b ?? ?? 0c 30 04 31 46 3b f7 7c ?? 5d 5b 5e 83 ?? ?? 75}
		$s2 = "WritePrivateProfileStringA"
		$s3 = "SetFileShortNameA"
		$s4 = "- Attempt to use MSIL code from this assembly during native code initialization"

	condition:
		all of them
}

Strings (4 patterns)

IdentifierTypeValueModifiers
$s1hex{8b ?? ?? 0c 30 04 31 46 3b f7 7c ?? 5d 5b 5e 83 ?? ?? 75}
$s2text"WritePrivateProfileStringA"
$s3text"SetFileShortNameA"
$s4text"- Attempt to use MSIL code from this assembly during native code initialization"

Condition

all of them

In plain words (Heuristic)

  • All patterns in the rule must match.

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References

Licence & attribution

Author: Matthew @ Embee_Research

Source repository: Embee Research @ ac56d6f6fd

Licence: Detection Rule License 1.1 (repository licence)

Original rule

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

Rule id: 59d933a8-8ccd-565f-b379-e0bf6c3d3111

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