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MALPEDIA_Win_Secondhandtea_Auto

autogenerated rule brought to you by yara-signator

MalwareSecondhandteaMalpedia 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: Secondhandtea.

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

Summary generated from the rule's metadata and condition.

Rule source

win-secondhandtea-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Secondhandtea_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "41f52151-5e51-5606-8737-723aab9a31f5"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.secondhandtea"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.secondhandtea_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "048cb3602402d265d0e27fe363656b33ee284c4af694aec548d39d9ba2f26c22"
		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 = { c744242001000000 ff15???????? 85c0 0f8489010000 488b4c2460 448d4f04 4c8d442470 }
		$sequence_1 = { 8b45b7 894330 488b45af 4c8965c7 e9???????? c7442420c0000000 ba74000000 }
		$sequence_2 = { c3 9b 401400 8c4014 007d40 1400 7440 }
		$sequence_3 = { f20f5e05???????? f2410f1100 c3 660fefc0 33c0 f2480f2a8110100000 f2410f1100 }
		$sequence_4 = { c744242079010000 e8???????? e9???????? babb000000 4c8d0de4480a00 b910000000 448d4289 }
		$sequence_5 = { b830000000 e8???????? 482be0 4533e4 418be8 4c8bf2 488bf9 }
		$sequence_6 = { 7438 498bcc e8???????? 85c0 7407 bb2a000000 eb4a }
		$sequence_7 = { e8???????? 488d8ba8160000 e8???????? 488bcb e8???????? 488bcb ff15???????? }
		$sequence_8 = { 8bf0 85c0 0f85b8000000 488b5c2420 4885db 0f8494000000 488b87c8150000 }
		$sequence_9 = { e8???????? 488bbe00020000 4883c9ff 33c0 f2ae 48f7d1 48ffc9 }

	condition:
		7 of them and filesize < 4452352
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ c744242001000000 ff15???????? 85c0 0f8489010000 488b4c2460 448d4f04 4c8d442470 }
$sequence_1hex{ 8b45b7 894330 488b45af 4c8965c7 e9???????? c7442420c0000000 ba74000000 }
$sequence_2hex{ c3 9b 401400 8c4014 007d40 1400 7440 }
$sequence_3hex{ f20f5e05???????? f2410f1100 c3 660fefc0 33c0 f2480f2a8110100000 f2410f1100 }
$sequence_4hex{ c744242079010000 e8???????? e9???????? babb000000 4c8d0de4480a00 b910000000 448d4289 }
$sequence_5hex{ b830000000 e8???????? 482be0 4533e4 418be8 4c8bf2 488bf9 }
$sequence_6hex{ 7438 498bcc e8???????? 85c0 7407 bb2a000000 eb4a }
$sequence_7hex{ e8???????? 488d8ba8160000 e8???????? 488bcb e8???????? 488bcb ff15???????? }
$sequence_8hex{ 8bf0 85c0 0f85b8000000 488b5c2420 4885db 0f8494000000 488b87c8150000 }
$sequence_9hex{ e8???????? 488bbe00020000 4883c9ff 33c0 f2ae 48f7d1 48ffc9 }

Condition

7 of them and filesize < 4452352

In plain words (Heuristic)

  • The file must be smaller than 4452352 (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: 41f52151-5e51-5606-8737-723aab9a31f5

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