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MALPEDIA_Win_Echo_Gather_Auto

autogenerated rule brought to you by yara-signator

MalwareEcho GatherMalpedia 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: Echo Gather.

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

Summary generated from the rule's metadata and condition.

Rule source

win-echo-gather-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Echo_Gather_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "5171c59e-97c4-548d-a823-11eaaac4ceba"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.echo_gather"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.echo_gather_auto.yar#L1-L130"
		license_url = "N/A"
		logic_hash = "4a250010d057baa3a66c5861fd8998fe771afec2203e9be7843163d459e1c93e"
		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 = { 8b8424ac000000 39e8 75c2 84d2 7504 660f10c5 f20f100d???????? }
		$sequence_1 = { 85ed 0f84d4020000 448b442458 4529f4 418b5504 418d442401 4489c1 }
		$sequence_2 = { 488b05???????? ffd0 4889842468040000 488b842468040000 4889c1 e8???????? }
		$sequence_3 = { c3 6641833900 0f852affffff e9???????? 4183e001 400fb6d5 488d4e02 }
		$sequence_4 = { 08d1 7414 4885f6 740f 488b542440 83e301 488d1453 }
		$sequence_5 = { 4889c1 e8???????? 488b4518 488d5008 488b45e8 41b900000000 41b824000000 }
		$sequence_6 = { 0f94c0 84c0 740a b800000000 e9???????? 488b4d10 }
		$sequence_7 = { 48894d10 48895518 48837d1000 7407 48837d1800 }
		$sequence_8 = { 84d1 7409 4439c0 0f8fdd0e0000 8b542460 4101c3 448b642470 }
		$sequence_9 = { 4889442420 48894c2440 e8???????? 89c5 85c0 0f8926ffffff e9???????? }

	condition:
		7 of them and filesize < 246784
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8b8424ac000000 39e8 75c2 84d2 7504 660f10c5 f20f100d???????? }
$sequence_1hex{ 85ed 0f84d4020000 448b442458 4529f4 418b5504 418d442401 4489c1 }
$sequence_2hex{ 488b05???????? ffd0 4889842468040000 488b842468040000 4889c1 e8???????? }
$sequence_3hex{ c3 6641833900 0f852affffff e9???????? 4183e001 400fb6d5 488d4e02 }
$sequence_4hex{ 08d1 7414 4885f6 740f 488b542440 83e301 488d1453 }
$sequence_5hex{ 4889c1 e8???????? 488b4518 488d5008 488b45e8 41b900000000 41b824000000 }
$sequence_6hex{ 0f94c0 84c0 740a b800000000 e9???????? 488b4d10 }
$sequence_7hex{ 48894d10 48895518 48837d1000 7407 48837d1800 }
$sequence_8hex{ 84d1 7409 4439c0 0f8fdd0e0000 8b542460 4101c3 448b642470 }
$sequence_9hex{ 4889442420 48894c2440 e8???????? 89c5 85c0 0f8926ffffff e9???????? }

Condition

7 of them and filesize < 246784

In plain words (Heuristic)

  • The file must be smaller than 246784 (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: 5171c59e-97c4-548d-a823-11eaaac4ceba

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