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SEKOIA_Rat_Win_Atharvan

Detect Atharvan RAT

MalwareAtharvanSEKOIA.IO CommunityDetection Rule License 1.1Compiles with YARA-X (with warnings)
Author
Sekoia.io
Date
2023-02-23
Modified
2024-12-19
Score / Quality
75 / 78

What this rule detects

Detect Atharvan RAT

Associated malware family: Atharvan.

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

YARA-X says: warning[text_as_hex]: hex pattern could be written as text literal

Summary generated from the rule's metadata and condition.

Rule source

rat-win-atharvan.yarDetection Rule License 1.1
rule SEKOIA_Rat_Win_Atharvan
{
	meta:
		description = "Detect Atharvan RAT"
		author = "Sekoia.io"
		id = "61347490-d281-4892-adba-89cf6187545f"
		date = "2023-02-23"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/rat_win_atharvan.yar#L1-L15"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "fee9a5a684b3e9bd629a0e87bdf63ba0c1fc1e970ca3b7fec8d7a4f2f60a355a"
		score = 75
		quality = 78
		tags = ""
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$s1 = {44 3a 5c 72 61 6e 67 5c 54 4f 4f 4c 5c 33 52 41 54}

	condition:
		all of them
}

Strings (1 patterns)

IdentifierTypeValueModifiers
$s1hex{44 3a 5c 72 61 6e 67 5c 54 4f 4f 4c 5c 33 52 41 54}

Condition

all of them

In plain words (Heuristic)

  • All patterns in the rule must match.

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References

Licence & attribution

Author: Sekoia.io

Source repository: SEKOIA.IO Community @ a438a5901a

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: 61347490-d281-4892-adba-89cf6187545f

Metadata

version1.0
classificationTLP:CLEAR

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