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YARA · ditekSHen detection

DITEKSHEN_MALWARE_Win_Hello

Hunt for Hello / WickrMe ransomware

MalwareHelloditekSHen 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

Hunt for Hello / WickrMe ransomware

Associated malware family: Hello.

Targets: Windows PE.

It defines 4 patterns (4 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
malware-win-hello.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Hello : FILE
{
	meta:
		description = "Hunt for Hello / WickrMe ransomware"
		author = "ditekSHen"
		id = "99c11aab-8a3a-5e10-9af0-542e55129d51"
		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#L5809-L5820"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "f52f12eb38613f5afd5258b5263c6e6e2d9db6c9659a769f896a2bb66564fa69"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "DeleteBackupFiles" ascii wide
		$s2 = "GetEncryptFiles" ascii wide
		$s3 = "DeleteVirtualDisks" ascii wide
		$s4 = "DismountVirtualDisks" ascii wide

	condition:
		uint16( 0 ) == 0x5a4d and 3 of them
}

Strings (4 patterns)

IdentifierTypeValueModifiers
$s1text"DeleteBackupFiles"ascii wide
$s2text"GetEncryptFiles"ascii wide
$s3text"DeleteVirtualDisks"ascii wide
$s4text"DismountVirtualDisks"ascii wide

Condition

uint16( 0 ) == 0x5a4d and 3 of them

In plain words (Heuristic)

  • The file must start with “MZ” — a Windows executable (PE).
  • At least 3 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: 99c11aab-8a3a-5e10-9af0-542e55129d51

Tags:FILE

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