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MALPEDIA_Win_Invisimole_Auto

autogenerated rule brought to you by yara-signator

MalwareInvisimoleMalpedia 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: Invisimole.

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

Summary generated from the rule's metadata and condition.

Rule source

win-invisimole-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Invisimole_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "00c4d480-eaff-5d5b-b7ed-fc8b15da400c"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.invisimole"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.invisimole_auto.yar#L1-L129"
		license_url = "N/A"
		logic_hash = "14d34ed0e95c30e1382775d7712f70010bd01725cbef579fec5803fe70172684"
		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 = { 8d45c8 50 8d75fc b80a020000 e8???????? 8bf0 83c404 }
		$sequence_1 = { 57 6810040000 6a08 50 ff15???????? 8bf8 85ff }
		$sequence_2 = { 8b06 6a00 050080c12a 6880969800 }
		$sequence_3 = { 7418 8b45fc 40 8945fc 83f80a 0f8c51ffffff 5e }
		$sequence_4 = { 50 ffd7 8bd8 895df4 85db 0f843e010000 }
		$sequence_5 = { c645bc0d 668955bd 894dbf 8bde 7409 83c302 66833b2a }
		$sequence_6 = { 0f8443010000 8b15???????? 52 ffd7 8bd8 895c2434 }
		$sequence_7 = { ff15???????? 807c241300 0f85e8030000 33f6 33db 89742414 89742418 }
		$sequence_8 = { 52 ff15???????? e9???????? a1???????? 50 ffd7 8bf0 }
		$sequence_9 = { 50 8b07 e8???????? 83c414 83f801 0f85920c0000 d1ee }

	condition:
		7 of them and filesize < 139264
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8d45c8 50 8d75fc b80a020000 e8???????? 8bf0 83c404 }
$sequence_1hex{ 57 6810040000 6a08 50 ff15???????? 8bf8 85ff }
$sequence_2hex{ 8b06 6a00 050080c12a 6880969800 }
$sequence_3hex{ 7418 8b45fc 40 8945fc 83f80a 0f8c51ffffff 5e }
$sequence_4hex{ 50 ffd7 8bd8 895df4 85db 0f843e010000 }
$sequence_5hex{ c645bc0d 668955bd 894dbf 8bde 7409 83c302 66833b2a }
$sequence_6hex{ 0f8443010000 8b15???????? 52 ffd7 8bd8 895c2434 }
$sequence_7hex{ ff15???????? 807c241300 0f85e8030000 33f6 33db 89742414 89742418 }
$sequence_8hex{ 52 ff15???????? e9???????? a1???????? 50 ffd7 8bf0 }
$sequence_9hex{ 50 8b07 e8???????? 83c414 83f801 0f85920c0000 d1ee }

Condition

7 of them and filesize < 139264

In plain words (Heuristic)

  • The file must be smaller than 139264 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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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: 00c4d480-eaff-5d5b-b7ed-fc8b15da400c

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

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