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YARA · ditekSHen detection

DITEKSHEN_MALWARE_Win_Acridrain

AcidRain stealer payload

MalwareAcridrainditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekSHen
Date
2020-11-06
Modified
2024-11-01
Score / Quality
75 / 75

What this rule detects

AcidRain stealer payload

Associated malware family: Acridrain.

Targets: Windows PE.

It defines 6 patterns (3 text, 3 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-acridrain.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Acridrain : FILE
{
	meta:
		description = "AcidRain stealer payload"
		author = "ditekSHen"
		id = "9890c9e0-ce53-5f08-9077-c73a9e4ba29c"
		date = "2020-11-06"
		modified = "2024-11-01"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L388-L401"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "11884073f4bf466503b07f297ae7fad188f79df148fcc7ca48827c7dbd07e211"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = { 43 6f 6f 6b 69 65 73 (5c|2e) }
		$s2 = { 74 65 6d 70 6c 6f 67 69 ?? }
		$s3 = { 74 65 6d 70 50 ?? 68 }
		$s4 = "Connecting to hostname: %s%s%s" fullword ascii
		$s5 = "Found bundle for host %s: %p [%s]" fullword ascii
		$s6 = "encryptedUsernamencryptedPassworERROR Don't copy string" fullword ascii

	condition:
		uint16( 0 ) == 0x5a4d and all of them
}

Strings (6 patterns)

IdentifierTypeValueModifiers
$s1hex{ 43 6f 6f 6b 69 65 73 (5c|2e) }
$s2hex{ 74 65 6d 70 6c 6f 67 69 ?? }
$s3hex{ 74 65 6d 70 50 ?? 68 }
$s4text"Connecting to hostname: %s%s%s"fullword ascii
$s5text"Found bundle for host %s: %p [%s]"fullword ascii
$s6text"encryptedUsernamencryptedPassworERROR Don't copy string"fullword ascii

Condition

uint16( 0 ) == 0x5a4d and all of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • All patterns in the rule must match.

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References

Licence & attribution

Author: ditekSHen

Source repository: ditekSHen detection @ e76c93dcde

Licence: BSD 2-Clause License (repository licence)

Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).

Original rule

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

Rule id: 9890c9e0-ce53-5f08-9077-c73a9e4ba29c

Tags:FILE

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