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YARA · Avast / Gen Digital IOC

AVASTTI_EXE_PRIVATE

No description has been set in the source file - AvastTI

GenericAvast / Gen Digital IOCDetection Rule License 1.1Compiles with YARA-Xprivate rule
Author
Avast Threat Intel Team
Date
2022-08-19
Modified
2026-03-11
Score / Quality
75 / 90

What this rule detects

No description has been set in the source file - AvastTI

Targets: Windows PE.

It has no patterns: the condition alone decides (modules, file properties or other rules).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
exe-private.yarDetection Rule License 1.1
private rule AVASTTI_EXE_PRIVATE : FILE
{
	meta:
		description = "No description has been set in the source file - AvastTI"
		author = "Avast Threat Intel Team"
		id = "1096b81d-5853-5d19-b502-c8166b712a3d"
		date = "2022-08-19"
		modified = "2026-03-11"
		reference = "https://github.com/avast/ioc"
		source_url = "https://github.com/avast/ioc/blob/a450ddabed95984422909c75ac52b6841f685983/Manjusaka/Manjusaka.yar#L9-L13"
		license_url = "N/A"
		logic_hash = "0688672446142f95a22e49a04234cc90b6c9021efeda9ce57034c88d84944663"
		score = 75
		quality = 90
		tags = "FILE"

	condition:
		uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550
}

Condition

uint16( 0 ) == 0x5A4D and uint32( uint32( 0x3C ) ) == 0x00004550

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).

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References

Licence & attribution

Author: Avast Threat Intel Team

Source repository: Avast / Gen Digital IOC @ a450ddabed

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: 1096b81d-5853-5d19-b502-c8166b712a3d

Tags:FILE

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