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MALPEDIA_Win_Evilgrab_Auto

autogenerated rule brought to you by yara-signator

MalwareEvilgrabMalpedia 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: Evilgrab.

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

Summary generated from the rule's metadata and condition.

Rule source

win-evilgrab-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Evilgrab_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "78b875d0-c278-57eb-a4d1-772f95abb9eb"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.evilgrab"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.evilgrab_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "53d033c43e309a437bb6e2c1678a19cd27063fb420c703c5ba3318adbdb25ac0"
		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 = { 0f842b010000 68???????? 8bcb e8???????? 50 6a01 68ff0f1f00 }
		$sequence_1 = { e8???????? 8b542414 83c404 33c9 8bf8 85d2 }
		$sequence_2 = { 83e103 f3a4 8b35???????? 8b95a4adffff 8bfa 83c9ff 33c0 }
		$sequence_3 = { 8b4528 8d1490 83c9ff 33c0 f2ae f7d1 2bf9 }
		$sequence_4 = { 68ff000000 e8???????? 8bf0 b93f000000 33c0 8bfe f3ab }
		$sequence_5 = { 741d 8b8d15ebffff 51 8b13 81c2f2000000 52 8b4b10 }
		$sequence_6 = { 8d7c2434 50 50 f3ab 8b4c2434 8d44243c 6800080000 }
		$sequence_7 = { f7d1 49 51 68???????? 6a07 50 68???????? }
		$sequence_8 = { 50 ff15???????? c7431cffffffff c6431500 e9???????? 8b8d15ebffff 81e1ff000000 }
		$sequence_9 = { ff4324 8b854cfeffff 50 ff15???????? ff45ec }

	condition:
		7 of them and filesize < 327680
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 0f842b010000 68???????? 8bcb e8???????? 50 6a01 68ff0f1f00 }
$sequence_1hex{ e8???????? 8b542414 83c404 33c9 8bf8 85d2 }
$sequence_2hex{ 83e103 f3a4 8b35???????? 8b95a4adffff 8bfa 83c9ff 33c0 }
$sequence_3hex{ 8b4528 8d1490 83c9ff 33c0 f2ae f7d1 2bf9 }
$sequence_4hex{ 68ff000000 e8???????? 8bf0 b93f000000 33c0 8bfe f3ab }
$sequence_5hex{ 741d 8b8d15ebffff 51 8b13 81c2f2000000 52 8b4b10 }
$sequence_6hex{ 8d7c2434 50 50 f3ab 8b4c2434 8d44243c 6800080000 }
$sequence_7hex{ f7d1 49 51 68???????? 6a07 50 68???????? }
$sequence_8hex{ 50 ff15???????? c7431cffffffff c6431500 e9???????? 8b8d15ebffff 81e1ff000000 }
$sequence_9hex{ ff4324 8b854cfeffff 50 ff15???????? ff45ec }

Condition

7 of them and filesize < 327680

In plain words (Heuristic)

  • The file must be smaller than 327680 (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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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: 78b875d0-c278-57eb-a4d1-772f95abb9eb

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