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WITHSECURELABS_Andariel_EDR_KILLER_Script

Detects strings found in EDR killer batch script

GenericWithSecure Labs IOCsBSD 2-Clause LicenseCompiles with YARA-X
Author
WithSecure
Date
2026-01-22
Score / Quality
75 / 75

What this rule detects

Detects strings found in EDR killer batch script

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

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
andariel-edr-killer-script.yarBSD 2-Clause License
rule WITHSECURELABS_Andariel_EDR_KILLER_Script
{
	meta:
		description = "Detects strings found in EDR killer batch script"
		author = "WithSecure"
		id = "72228388-7d17-5a61-97ad-eb7f0e701ce4"
		date = "2026-01-22"
		modified = "2026-01-22"
		reference = "https://github.com/WithSecureLabs/iocs"
		source_url = "https://github.com/WithSecureLabs/iocs/blob/1a8384468dd292c6d2c5114c32e42dc0da1f5ae1/Andariel2025/andariel.yara#L115-L124"
		license_url = "https://github.com/WithSecureLabs/iocs/blob/1a8384468dd292c6d2c5114c32e42dc0da1f5ae1/LICENSE"
		logic_hash = "c26618981d6fafd81cfbae6ad302e8e742fa6fb97589f26ea811c910904960a6"
		score = 75
		quality = 75
		tags = ""

	strings:
		$a1 = "PageSvc" ascii
		$a2 = "page.sys" ascii

	condition:
		all of them
}

Strings (2 patterns)

IdentifierTypeValueModifiers
$a1text"PageSvc"ascii
$a2text"page.sys"ascii

Condition

all of them

In plain words (Heuristic)

  • All patterns in the rule must match.

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References

Licence & attribution

Author: WithSecure

Source repository: WithSecure Labs IOCs @ 1a8384468d

Licence: BSD 2-Clause License (repository licence)

Copyright notice: Copyright (c) 2022, WithSecure Oyj

Original rule

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

Rule id: 72228388-7d17-5a61-97ad-eb7f0e701ce4

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