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MALPEDIA_Win_Charon_Auto

autogenerated rule brought to you by yara-signator

MalwareCharonMalpedia 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: Charon.

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

Summary generated from the rule's metadata and condition.

Rule source

win-charon-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Charon_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "ba7f61e1-20f8-5a1b-a920-eb2b184a6a30"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.charon"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.charon_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "b598f6a92625e1a420ae9769010cbdb9620b00ca9e122ec89fe53d450382c38a"
		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 = { 890424 8b442420 390424 0f8db2000000 48630424 488b4c2428 488b04c1 }
		$sequence_1 = { 89842488000000 b804000000 486bc00a 488b8c2460020000 8b840100100000 c1e018 b904000000 }
		$sequence_2 = { 89840a40100000 8b0424 0509020000 8bc0 488b8c2460020000 8b0481 c1e017 }
		$sequence_3 = { 8b8c24dc000000 33c8 8bc1 8b8c24e0000000 03c8 8bc1 8b0c24 }
		$sequence_4 = { 833c240a 7365 8b0424 8b0c24 488b542420 4c8b442428 }
		$sequence_5 = { 8b4c2408 03c8 8bc1 0384249c000000 89442410 8b442424 8b4c243c }
		$sequence_6 = { 89442468 b804000000 486bc008 488b8c2460020000 8b840100100000 c1e018 b904000000 }
		$sequence_7 = { 4889040a b808000000 486bc001 488b4c2410 48630401 48d1e0 }
		$sequence_8 = { 8b442418 ffc0 4898 8b84c4a0010000 03442408 03842484010000 89442410 }
		$sequence_9 = { 48894c2408 4881ec58020000 488b842460020000 8b8080100000 25ff010000 890424 }

	condition:
		7 of them and filesize < 254976
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 890424 8b442420 390424 0f8db2000000 48630424 488b4c2428 488b04c1 }
$sequence_1hex{ 89842488000000 b804000000 486bc00a 488b8c2460020000 8b840100100000 c1e018 b904000000 }
$sequence_2hex{ 89840a40100000 8b0424 0509020000 8bc0 488b8c2460020000 8b0481 c1e017 }
$sequence_3hex{ 8b8c24dc000000 33c8 8bc1 8b8c24e0000000 03c8 8bc1 8b0c24 }
$sequence_4hex{ 833c240a 7365 8b0424 8b0c24 488b542420 4c8b442428 }
$sequence_5hex{ 8b4c2408 03c8 8bc1 0384249c000000 89442410 8b442424 8b4c243c }
$sequence_6hex{ 89442468 b804000000 486bc008 488b8c2460020000 8b840100100000 c1e018 b904000000 }
$sequence_7hex{ 4889040a b808000000 486bc001 488b4c2410 48630401 48d1e0 }
$sequence_8hex{ 8b442418 ffc0 4898 8b84c4a0010000 03442408 03842484010000 89442410 }
$sequence_9hex{ 48894c2408 4881ec58020000 488b842460020000 8b8080100000 25ff010000 890424 }

Condition

7 of them and filesize < 254976

In plain words (Heuristic)

  • The file must be smaller than 254976 (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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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: ba7f61e1-20f8-5a1b-a920-eb2b184a6a30

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