MALPEDIA_Win_3Cx_Backdoor_Auto

rule MALPEDIA_Win_3Cx_Backdoor_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "1f976734-b5f0-521c-871a-e7babcb44dc6"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.3cx_backdoor"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.3cx_backdoor_auto.yar#L1-L132"
		license_url = "N/A"
		logic_hash = "64488f3b81fcdce13d2c1526a75e497414487090bd2d24584ec7c4fe7f730e74"
		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 = { 747f 4c8d7027 4983e6e0 498946f8 eb0b 488bcb e8???????? }
		$sequence_1 = { e8???????? 448bac24d0000000 488bf8 452be5 660f1f440000 e8???????? 33d2 }
		$sequence_2 = { e8???????? 4c897de8 4c897df8 4c897d00 0f1000 0f1145e8 0f104810 }
		$sequence_3 = { c1e116 4d03c2 33c1 458bd0 4c0fafd7 418d0c10 49c1e820 }
		$sequence_4 = { 49894808 48894508 488d4d08 e9???????? 488b78f8 803f02 7534 }
		$sequence_5 = { 0f85c7000000 48897c2430 48897c2440 4c89742448 41b804000000 488d1595820300 488d4c2430 }
		$sequence_6 = { 4d8d143f 660f1f440000 0fb642f8 4188441208 488b02 4989441210 c642f800 }
		$sequence_7 = { c3 488364242000 4c8d05c9b00100 41b9db010000 488d152cb10100 488d0d85b10100 }
		$sequence_8 = { 488d1549d6feff 4803ca 813950450000 755f b80b020000 66394118 7554 }
		$sequence_9 = { 0f1000 0f11450f 0f104810 0f114d1f 4c897010 48c740180f000000 }

	condition:
		7 of them and filesize < 585728
}