Skip to content
yararules.org
Menu

YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_APT_MAL_Sandworm_Exaramel_Configuration_Name_Encrypted

Detects the specific name of the configuration file in Exaramel malware as seen in sample e1ff72[...]

APT / threat actorExaramelSignature Base (Florian Roth / Nextron)Detection Rule License 1.1Compiles with YARA-X
Author
FR/ANSSI/SDO
Date
2021-02-15
Modified
2024-05-25
Score / Quality
80 / 85

What this rule detects

Detects the specific name of the configuration file in Exaramel malware as seen in sample e1ff72[...]

Associated malware family: Exaramel.

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

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
apt-mal-sandworm-exaramel-configuration-name-encrypted.yarDetection Rule License 1.1
rule SIGNATURE_BASE_APT_MAL_Sandworm_Exaramel_Configuration_Name_Encrypted
{
	meta:
		description = "Detects the specific name of the configuration file in Exaramel malware as seen in sample e1ff72[...]"
		author = "FR/ANSSI/SDO"
		id = "1c06f5fc-3435-51cd-92fb-17a4ab6b63ad"
		date = "2021-02-15"
		modified = "2024-05-25"
		reference = "https://www.cert.ssi.gouv.fr/uploads/CERTFR-2021-CTI-005.pdf"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/apt_sandworm_centreon.yar#L92-L104"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		logic_hash = "f65d59381403534a2c2f39d66c7c62bf1540eafc9aad1ad73de1809e91c42446"
		score = 80
		quality = 85
		tags = ""

	strings:
		$ = "configtx.json"

	condition:
		all of them
}

Strings (1 patterns)

IdentifierTypeValueModifiers
$text"configtx.json"

Condition

all of them

In plain words (Heuristic)

  • All patterns in the rule must match.

Test this rule in your browser

Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.

Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

References

Licence & attribution

Author: FR/ANSSI/SDO

Source repository: Signature Base (Florian Roth / Nextron) @ 94a1c48d7a

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: 1c06f5fc-3435-51cd-92fb-17a4ab6b63ad

Related rules

More Exaramel rules