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MALPEDIA_Win_Tropidoor_Auto

autogenerated rule brought to you by yara-signator

MalwareTropidoorMalpedia 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: Tropidoor.

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

Summary generated from the rule's metadata and condition.

Rule source

win-tropidoor-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Tropidoor_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "ffe1a294-ea4c-57ba-a27c-8431b3acddd9"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.tropidoor"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.tropidoor_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "8f65e16d0371ac7f428566001d7f8566fb848fcd04bef1ac66b2c183fb096312"
		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 = { 75f6 488d95e0010000 488bce e8???????? 488d0d90330900 ff15???????? 4c8bf0 }
		$sequence_1 = { 48c7c3ffffffff 488945a0 e9???????? 498b06 48c7c3ffffffff 488945a8 e9???????? }
		$sequence_2 = { 66314c458a 48ffc0 4883f817 7306 0fb74d88 ebec 488b05???????? }
		$sequence_3 = { ffd0 85c0 743f 4c8d054beb0800 488d85100f0000 6683bd100f000000 4c0f45c0 }
		$sequence_4 = { c74424605d005700 c744246475006700 c744246874005000 c744246c63006f00 c744247067005f00 6689742474 0fb705???????? }
		$sequence_5 = { 488b4c2440 488d4590 4889442428 4c8d4d94 488d85f0030000 4533c0 488d159f440900 }
		$sequence_6 = { 48895c2448 4d8bf1 498bf0 448bfb 4c8d6bff f30f7f442450 4c8b642450 }
		$sequence_7 = { ffd0 85c0 7418 0f104558 0f1186a8000000 f20f104d68 f20f118eb8000000 }
		$sequence_8 = { e8???????? 42c6043300 eb13 4c89742420 4d8bcf 498bd6 488bce }
		$sequence_9 = { 0f8446010000 4889742440 488d85b0030000 4489642438 4c8d85a0010000 488d4d90 4889442420 }

	condition:
		7 of them and filesize < 1826816
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 75f6 488d95e0010000 488bce e8???????? 488d0d90330900 ff15???????? 4c8bf0 }
$sequence_1hex{ 48c7c3ffffffff 488945a0 e9???????? 498b06 48c7c3ffffffff 488945a8 e9???????? }
$sequence_2hex{ 66314c458a 48ffc0 4883f817 7306 0fb74d88 ebec 488b05???????? }
$sequence_3hex{ ffd0 85c0 743f 4c8d054beb0800 488d85100f0000 6683bd100f000000 4c0f45c0 }
$sequence_4hex{ c74424605d005700 c744246475006700 c744246874005000 c744246c63006f00 c744247067005f00 6689742474 0fb705???????? }
$sequence_5hex{ 488b4c2440 488d4590 4889442428 4c8d4d94 488d85f0030000 4533c0 488d159f440900 }
$sequence_6hex{ 48895c2448 4d8bf1 498bf0 448bfb 4c8d6bff f30f7f442450 4c8b642450 }
$sequence_7hex{ ffd0 85c0 7418 0f104558 0f1186a8000000 f20f104d68 f20f118eb8000000 }
$sequence_8hex{ e8???????? 42c6043300 eb13 4c89742420 4d8bcf 498bd6 488bce }
$sequence_9hex{ 0f8446010000 4889742440 488d85b0030000 4489642438 4c8d85a0010000 488d4d90 4889442420 }

Condition

7 of them and filesize < 1826816

In plain words (Heuristic)

  • The file must be smaller than 1826816 (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: ffe1a294-ea4c-57ba-a27c-8431b3acddd9

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