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MALPEDIA_Win_Eagerbee_Auto

autogenerated rule brought to you by yara-signator

MalwareEagerbeeMalpedia 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: Eagerbee.

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

Summary generated from the rule's metadata and condition.

Rule source

win-eagerbee-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Eagerbee_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "7a126278-7eb1-5d08-9b25-74b27f2a3312"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.eagerbee"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.eagerbee_auto.yar#L1-L128"
		license_url = "N/A"
		logic_hash = "a3d744962e3184242280e8a1606b8e9d39f3a62e4bfb278481827290e0059489"
		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 = { 3986f4160000 0f8576ffffff 8b8684000000 85c0 7809 488bd0 }
		$sequence_1 = { 488d4c0422 44896309 e8???????? 8bd0 e9???????? 488d4c0421 e8???????? }
		$sequence_2 = { 44396818 0f84b7010000 488d1de463ffff beffff0000 bd00010000 e9???????? 4439af90000000 }
		$sequence_3 = { 885c247d 488b08 488d542470 ff5058 b9fb010000 488bd8 e8???????? }
		$sequence_4 = { c684242b0100006d 4088bc242c010000 4088b4242d010000 48397308 0f84ae030000 488b05???????? c684249000000073 }
		$sequence_5 = { 33c9 8bd7 41b800300000 ff15???????? 8b5500 }
		$sequence_6 = { c644243432 c64424352e c644243664 884c2438 488d4c2430 c644243900 }
		$sequence_7 = { 488d8c24e0040000 48894c2420 488b8c24e8040000 4c8bc3 ba01000000 ffd0 488b05???????? }
		$sequence_8 = { 8a8424c0000000 8b9c24a8000000 488bbc2498000000 88442450 488b8424b8000000 498943e0 8a8424b0000000 }
		$sequence_9 = { 4883ec38 83fa01 7528 488364242800 8364242000 }

	condition:
		7 of them and filesize < 422912
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 3986f4160000 0f8576ffffff 8b8684000000 85c0 7809 488bd0 }
$sequence_1hex{ 488d4c0422 44896309 e8???????? 8bd0 e9???????? 488d4c0421 e8???????? }
$sequence_2hex{ 44396818 0f84b7010000 488d1de463ffff beffff0000 bd00010000 e9???????? 4439af90000000 }
$sequence_3hex{ 885c247d 488b08 488d542470 ff5058 b9fb010000 488bd8 e8???????? }
$sequence_4hex{ c684242b0100006d 4088bc242c010000 4088b4242d010000 48397308 0f84ae030000 488b05???????? c684249000000073 }
$sequence_5hex{ 33c9 8bd7 41b800300000 ff15???????? 8b5500 }
$sequence_6hex{ c644243432 c64424352e c644243664 884c2438 488d4c2430 c644243900 }
$sequence_7hex{ 488d8c24e0040000 48894c2420 488b8c24e8040000 4c8bc3 ba01000000 ffd0 488b05???????? }
$sequence_8hex{ 8a8424c0000000 8b9c24a8000000 488bbc2498000000 88442450 488b8424b8000000 498943e0 8a8424b0000000 }
$sequence_9hex{ 4883ec38 83fa01 7528 488364242800 8364242000 }

Condition

7 of them and filesize < 422912

In plain words (Heuristic)

  • The file must be smaller than 422912 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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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: 7a126278-7eb1-5d08-9b25-74b27f2a3312

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