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MALPEDIA_Win_Tor_Loader_Auto

autogenerated rule brought to you by yara-signator

MalwareTor LoaderMalpedia 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: Tor Loader.

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

Summary generated from the rule's metadata and condition.

Rule source

win-tor-loader-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Tor_Loader_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "f571352d-fc66-5a66-ba46-fe3c570d3248"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.tor_loader"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.tor_loader_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "c2d848c7e05d939cb93f16e650363df5751636d1df031ac1756188062f0ee650"
		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 = { e8???????? 488d05943d2200 488b5c2438 488d0dc4b92700 bf12000000 0f1f00 e8???????? }
		$sequence_1 = { e8???????? 488b4c2478 4889c8 0f1f00 e8???????? 488b6c2468 4883c470 }
		$sequence_2 = { eb20 4889c7 488d059d9a1500 e8???????? 488d3d3c073c00 488b442420 e8???????? }
		$sequence_3 = { eba7 0fb64c2413 84c9 0f94c0 eb9b e8???????? 488d058c4d2c00 }
		$sequence_4 = { e8???????? 4889c1 488d05b1323200 440f11bc24a0000000 4889842490000000 48898c2498000000 0fb674242f }
		$sequence_5 = { 833d????????00 7519 488b9424e8000000 48895068 488b942400010000 4885d2 eb1f }
		$sequence_6 = { eb05 e8???????? 488d055ece0700 e8???????? 48c7400802000000 48c78424c003000002000000 48c78424c803000002000000 }
		$sequence_7 = { eb4c 4c8ba424f8000000 4d89e5 4d89fc 4c8bbc2488000000 4c89a42490000000 4d85e4 }
		$sequence_8 = { eb10 4889c7 488b9424c8000000 e8???????? 31db 488d0d830a2100 4889c7 }
		$sequence_9 = { 8b44242c e8???????? 488d0df2910d00 48894c2470 4889442478 488b4c2430 0f1f00 }

	condition:
		7 of them and filesize < 13050880
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ e8???????? 488d05943d2200 488b5c2438 488d0dc4b92700 bf12000000 0f1f00 e8???????? }
$sequence_1hex{ e8???????? 488b4c2478 4889c8 0f1f00 e8???????? 488b6c2468 4883c470 }
$sequence_2hex{ eb20 4889c7 488d059d9a1500 e8???????? 488d3d3c073c00 488b442420 e8???????? }
$sequence_3hex{ eba7 0fb64c2413 84c9 0f94c0 eb9b e8???????? 488d058c4d2c00 }
$sequence_4hex{ e8???????? 4889c1 488d05b1323200 440f11bc24a0000000 4889842490000000 48898c2498000000 0fb674242f }
$sequence_5hex{ 833d????????00 7519 488b9424e8000000 48895068 488b942400010000 4885d2 eb1f }
$sequence_6hex{ eb05 e8???????? 488d055ece0700 e8???????? 48c7400802000000 48c78424c003000002000000 48c78424c803000002000000 }
$sequence_7hex{ eb4c 4c8ba424f8000000 4d89e5 4d89fc 4c8bbc2488000000 4c89a42490000000 4d85e4 }
$sequence_8hex{ eb10 4889c7 488b9424c8000000 e8???????? 31db 488d0d830a2100 4889c7 }
$sequence_9hex{ 8b44242c e8???????? 488d0df2910d00 48894c2470 4889442478 488b4c2430 0f1f00 }

Condition

7 of them and filesize < 13050880

In plain words (Heuristic)

  • The file must be smaller than 13050880 (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: f571352d-fc66-5a66-ba46-fe3c570d3248

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