Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Elise_Auto

autogenerated rule brought to you by yara-signator

MalwareEliseMalpedia 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: Elise.

It defines 16 patterns (0 text, 16 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-elise-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Elise_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "e9450a6f-39e8-5559-8ea2-38a29ab7f193"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.elise"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.elise_auto.yar#L1-L169"
		license_url = "N/A"
		logic_hash = "5ded95c4439812b9f226de5926faad139bbac5d5faba8fe45353b300b601040b"
		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 = { e8???????? 85c0 0f8484000000 53 57 }
		$sequence_1 = { 8b01 294104 8b5104 8bf2 c1ee1f f7de }
		$sequence_2 = { 8901 8b4108 8b5008 56 8b30 }
		$sequence_3 = { 5f c3 56 be4d5a0000 663931 7534 }
		$sequence_4 = { 034e0c 0111 8b7dfc 47 3b7df8 897dfc 7cc6 }
		$sequence_5 = { 7cf5 33c9 888f00010000 888f01010000 8bf7 }
		$sequence_6 = { c1e006 8d5828 c745f406000000 8d0433 8d0447 }
		$sequence_7 = { 66894202 57 8bc3 c1e310 }
		$sequence_8 = { 8b481c 8b5814 03ca 33d2 42 2b5010 7816 }
		$sequence_9 = { d1e8 33c2 eb02 d1e8 4e 75f1 }
		$sequence_10 = { 8b7df4 8d4e01 81e1ff000080 7908 49 81c900ffffff }
		$sequence_11 = { 46 4f 75eb f7d0 }
		$sequence_12 = { 8a8800010000 8a9001010000 0f8e93000000 53 }
		$sequence_13 = { 83c8ff b9ff000000 83ff08 0f82a1000000 8bd7 }
		$sequence_14 = { 0145f0 6a00 6800010000 ff75ec 1155f4 }
		$sequence_15 = { 0fb6d2 03d7 81e2ff000080 7908 4a 81ca00ffffff 42 }

	condition:
		7 of them and filesize < 204800
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ e8???????? 85c0 0f8484000000 53 57 }
$sequence_1hex{ 8b01 294104 8b5104 8bf2 c1ee1f f7de }
$sequence_2hex{ 8901 8b4108 8b5008 56 8b30 }
$sequence_3hex{ 5f c3 56 be4d5a0000 663931 7534 }
$sequence_4hex{ 034e0c 0111 8b7dfc 47 3b7df8 897dfc 7cc6 }
$sequence_5hex{ 7cf5 33c9 888f00010000 888f01010000 8bf7 }
$sequence_6hex{ c1e006 8d5828 c745f406000000 8d0433 8d0447 }
$sequence_7hex{ 66894202 57 8bc3 c1e310 }
$sequence_8hex{ 8b481c 8b5814 03ca 33d2 42 2b5010 7816 }
$sequence_9hex{ d1e8 33c2 eb02 d1e8 4e 75f1 }
$sequence_10hex{ 8b7df4 8d4e01 81e1ff000080 7908 49 81c900ffffff }
$sequence_11hex{ 46 4f 75eb f7d0 }
$sequence_12hex{ 8a8800010000 8a9001010000 0f8e93000000 53 }
$sequence_13hex{ 83c8ff b9ff000000 83ff08 0f82a1000000 8bd7 }
$sequence_14hex{ 0145f0 6a00 6800010000 ff75ec 1155f4 }
$sequence_15hex{ 0fb6d2 03d7 81e2ff000080 7908 4a 81ca00ffffff 42 }

Condition

7 of them and filesize < 204800

In plain words (Heuristic)

  • The file must be smaller than 204800 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.

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: e9450a6f-39e8-5559-8ea2-38a29ab7f193

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