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MALPEDIA_Win_Babylon_Rat_Auto

autogenerated rule brought to you by yara-signator

MalwareBabylon RatMalpedia 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: Babylon Rat.

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

Summary generated from the rule's metadata and condition.

Rule source

win-babylon-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Babylon_Rat_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "0a905735-2eee-509c-a070-b289107ed232"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.babylon_rat"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.babylon_rat_auto.yar#L1-L133"
		license_url = "N/A"
		logic_hash = "d8b93c72ff019a6cc2a29062db68f043ff80eec2c966731e57d60aa4eccaff84"
		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 = { 89483c 894840 e8???????? 8bc8 83c40c 8b450c 897040 }
		$sequence_1 = { eb0b 8b450c 8b7514 8930 8b7508 894804 397df4 }
		$sequence_2 = { f7401800000800 0f84a4000000 53 8b5d0c 56 6a1f 59 }
		$sequence_3 = { eb04 c6400601 5e 5b 5d c3 55 }
		$sequence_4 = { 89bb3c010000 89bb38010000 89bb34010000 89bb40010000 e8???????? 57 }
		$sequence_5 = { ff7508 8bf0 53 8975d4 e8???????? 83c414 85f6 }
		$sequence_6 = { ff750c 8b7708 e8???????? 837d1800 b9???????? 50 b8???????? }
		$sequence_7 = { ffb50cffffff ffb524ffffff 50 8b85f4feffff ff30 e8???????? 8b8df4feffff }
		$sequence_8 = { 8aca 2ac8 83e10f 03d9 8b4dec 742b 8b55f8 }
		$sequence_9 = { 83c430 33d2 42 f6462a20 0f85ff000000 6a36 56 }

	condition:
		7 of them and filesize < 1604608
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 89483c 894840 e8???????? 8bc8 83c40c 8b450c 897040 }
$sequence_1hex{ eb0b 8b450c 8b7514 8930 8b7508 894804 397df4 }
$sequence_2hex{ f7401800000800 0f84a4000000 53 8b5d0c 56 6a1f 59 }
$sequence_3hex{ eb04 c6400601 5e 5b 5d c3 55 }
$sequence_4hex{ 89bb3c010000 89bb38010000 89bb34010000 89bb40010000 e8???????? 57 }
$sequence_5hex{ ff7508 8bf0 53 8975d4 e8???????? 83c414 85f6 }
$sequence_6hex{ ff750c 8b7708 e8???????? 837d1800 b9???????? 50 b8???????? }
$sequence_7hex{ ffb50cffffff ffb524ffffff 50 8b85f4feffff ff30 e8???????? 8b8df4feffff }
$sequence_8hex{ 8aca 2ac8 83e10f 03d9 8b4dec 742b 8b55f8 }
$sequence_9hex{ 83c430 33d2 42 f6462a20 0f85ff000000 6a36 56 }

Condition

7 of them and filesize < 1604608

In plain words (Heuristic)

  • The file must be smaller than 1604608 (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: 0a905735-2eee-509c-a070-b289107ed232

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