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YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_Hvs_APT27_Hyperbro_Stage3_Persistence

HyperBro Stage 3 registry keys for persistence

MalwareHyperbroSignature Base (Florian Roth / Nextron)Detection Rule License 1.1Compiles with YARA-X
Author
Marko Dorfhuber
Date
2022-02-07
Modified
2023-12-05
Score / Quality
75 / 85

What this rule detects

HyperBro Stage 3 registry keys for persistence

Associated malware family: Hyperbro.

It defines 2 patterns (2 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
hvs-apt27-hyperbro-stage3-persistence.yarDetection Rule License 1.1
rule SIGNATURE_BASE_Hvs_APT27_Hyperbro_Stage3_Persistence
{
	meta:
		description = "HyperBro Stage 3 registry keys for persistence"
		author = "Marko Dorfhuber"
		id = "2bb1d28b-5fc4-5f0b-b546-c8b8192b0d48"
		date = "2022-02-07"
		modified = "2023-12-05"
		reference = "https://www.hvs-consulting.de/en/threat-intelligence-report-emissary-panda-apt27"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/apt_apt27_hyperbro.yar#L103-L117"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		hash = "624e85bd669b97bc55ed5c5ea5f6082a1d4900d235a5d2e2a5683a04e36213e8"
		logic_hash = "db4b7be2bafe29b5e7c81a90e17a660cf73cff1c2e8edd04a9421daba09e3e0e"
		score = 75
		quality = 85
		tags = ""

	strings:
		$ = "SOFTWARE\\WOW6432Node\\Microsoft\\config_" ascii
		$ = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run\\windefenders" ascii

	condition:
		1 of them
}

Strings (2 patterns)

IdentifierTypeValueModifiers
$text"SOFTWARE\\WOW6432Node\\Microsoft\\config_"ascii
$text"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run\\windefenders"ascii

Condition

1 of them

In plain words (Heuristic)

  • At least 1 patterns in the rule must match.

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References

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

  • 624e85bd669b97bc55ed5c5ea5f6082a1d4900d235a5d2e2a5683a04e36213e8

Licence & attribution

Author: Marko Dorfhuber

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: 2bb1d28b-5fc4-5f0b-b546-c8b8192b0d48

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