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MALPEDIA_Win_Electricfish_Auto

autogenerated rule brought to you by yara-signator

MalwareElectricfishMalpedia 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: Electricfish.

It defines 8 patterns (0 text, 8 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-electricfish-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Electricfish_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "644381b6-362d-5f1b-9303-d5ae25d7db40"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.electricfish"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.electricfish_auto.yar#L1-L113"
		license_url = "N/A"
		logic_hash = "9942678020bb2669f734d3306a631ed9324c86db369d8b9407670b5141533d86"
		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 = { 3bc3 7438 6a7e 68???????? 50 e8???????? 83c40c }
		$sequence_1 = { 3bc3 7417 50 e8???????? 83c404 898608020000 3bc3 }
		$sequence_2 = { 3bc3 7421 395f04 747b 68c2000000 68???????? 6a08 }
		$sequence_3 = { 3bc3 741d 8b87b0010000 3bc3 741e 50 }
		$sequence_4 = { 3bc3 7413 50 e8???????? 83c404 89861c020000 3bc3 }
		$sequence_5 = { 3bc3 741a 8b8edc000000 8d542470 89442478 894c2470 895c247c }
		$sequence_6 = { 3bc3 741e 50 e8???????? 83c404 898618020000 3bc3 }
		$sequence_7 = { 3bc3 7429 395860 7424 8b4c2414 51 8b4c2424 }

	condition:
		7 of them and filesize < 3162112
}

Strings (8 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 3bc3 7438 6a7e 68???????? 50 e8???????? 83c40c }
$sequence_1hex{ 3bc3 7417 50 e8???????? 83c404 898608020000 3bc3 }
$sequence_2hex{ 3bc3 7421 395f04 747b 68c2000000 68???????? 6a08 }
$sequence_3hex{ 3bc3 741d 8b87b0010000 3bc3 741e 50 }
$sequence_4hex{ 3bc3 7413 50 e8???????? 83c404 89861c020000 3bc3 }
$sequence_5hex{ 3bc3 741a 8b8edc000000 8d542470 89442478 894c2470 895c247c }
$sequence_6hex{ 3bc3 741e 50 e8???????? 83c404 898618020000 3bc3 }
$sequence_7hex{ 3bc3 7429 395860 7424 8b4c2414 51 8b4c2424 }

Condition

7 of them and filesize < 3162112

In plain words (Heuristic)

  • The file must be smaller than 3162112 (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.

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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: 644381b6-362d-5f1b-9303-d5ae25d7db40

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