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MALPEDIA_Win_Greenshaitan_Auto

autogenerated rule brought to you by yara-signator

MalwareGreenshaitanMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
Author
Felix Bilstein - yara-signator at cocacoding dot com
Date
2026-05-04
Modified
2026-05-18
Score / Quality
75 / 75

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Greenshaitan.

It defines 10 patterns (0 text, 10 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-greenshaitan-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Greenshaitan_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "0b6c920b-61fa-5645-9e14-f59bb31cffc6"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.greenshaitan"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.greenshaitan_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "3b9467c3378280e2269ba3424b66c5d1482fc874345f811cd08ad75be75ca37f"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20260422"
		malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
		malpedia_version = "20260504"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { 837b4400 c744241400000000 0f8658010000 eb02 8bd9 8b7340 8b5344 }
		$sequence_1 = { e9???????? 6a24 e8???????? 8bf0 83c404 89742418 c684249800000007 }
		$sequence_2 = { e8???????? 55 6a00 b9???????? c784246802000003000000 e8???????? 89ac2460020000 }
		$sequence_3 = { b9???????? e8???????? 3bc3 751a 83fe02 721a }
		$sequence_4 = { 50 8b06 51 52 50 68???????? 8d74242c }
		$sequence_5 = { 394608 741e 8b442410 8b4d08 40 89442410 3b4124 }
		$sequence_6 = { 035318 3bc2 7209 e8???????? 8b4c2420 85c9 7404 }
		$sequence_7 = { 51 e8???????? 83c404 8d4c2410 e8???????? 55 }
		$sequence_8 = { 53 56 57 8bf9 8bda 57 e8???????? }
		$sequence_9 = { 8d0c8d60ab6e00 8901 8305????????20 8d9000080000 eb2a c6400400 }

	condition:
		7 of them and filesize < 253952
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 837b4400 c744241400000000 0f8658010000 eb02 8bd9 8b7340 8b5344 }
$sequence_1hex{ e9???????? 6a24 e8???????? 8bf0 83c404 89742418 c684249800000007 }
$sequence_2hex{ e8???????? 55 6a00 b9???????? c784246802000003000000 e8???????? 89ac2460020000 }
$sequence_3hex{ b9???????? e8???????? 3bc3 751a 83fe02 721a }
$sequence_4hex{ 50 8b06 51 52 50 68???????? 8d74242c }
$sequence_5hex{ 394608 741e 8b442410 8b4d08 40 89442410 3b4124 }
$sequence_6hex{ 035318 3bc2 7209 e8???????? 8b4c2420 85c9 7404 }
$sequence_7hex{ 51 e8???????? 83c404 8d4c2410 e8???????? 55 }
$sequence_8hex{ 53 56 57 8bf9 8bda 57 e8???????? }
$sequence_9hex{ 8d0c8d60ab6e00 8901 8305????????20 8d9000080000 eb2a c6400400 }

Condition

7 of them and filesize < 253952

In plain words (Heuristic)

  • The file must be smaller than 253952 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

References

Licence & attribution

Author: Felix Bilstein - yara-signator at cocacoding dot com

Source repository: Malpedia signator rules @ c901f97b7d

Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)

Original rule

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

Rule id: 0b6c920b-61fa-5645-9e14-f59bb31cffc6

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE