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MALPEDIA_Win_Sslmm_Auto

autogenerated rule brought to you by yara-signator

MalwareSslmmMalpedia 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: Sslmm.

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

Summary generated from the rule's metadata and condition.

Rule source

win-sslmm-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Sslmm_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "8ca87078-8100-5bd1-8798-54d3e2b28ab6"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sslmm"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.sslmm_auto.yar#L1-L124"
		license_url = "N/A"
		logic_hash = "b59a6cbb4229b581ad3d667790c29c9dd7a69cc275f8aeb2850b68e9c295e7e7"
		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 = { 8d4c243c 8bc2 899374010000 8b9370010000 8944245c 8d44245c }
		$sequence_1 = { 8bce 895c2420 e8???????? 85c0 745e 399e9c000000 }
		$sequence_2 = { 8b542434 57 6a01 55 52 8bce }
		$sequence_3 = { 55 03d0 8d4c243c 8bc2 899374010000 8b9370010000 }
		$sequence_4 = { 8bd9 55 56 8b8360010000 33ed 33f6 3bc5 }
		$sequence_5 = { 7538 8b442434 85c0 7430 8b4c242c 8b9370010000 51 }
		$sequence_6 = { 33c9 8d542408 894c2428 52 894c2430 }
		$sequence_7 = { 8bf8 ff15???????? 8b44240c 8b4804 8b10 51 }
		$sequence_8 = { e8???????? 53 55 8bac241c140000 }
		$sequence_9 = { 8d83e4000000 51 6a04 50 ff931c010000 3bc6 0f85a0010000 }

	condition:
		7 of them and filesize < 188416
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8d4c243c 8bc2 899374010000 8b9370010000 8944245c 8d44245c }
$sequence_1hex{ 8bce 895c2420 e8???????? 85c0 745e 399e9c000000 }
$sequence_2hex{ 8b542434 57 6a01 55 52 8bce }
$sequence_3hex{ 55 03d0 8d4c243c 8bc2 899374010000 8b9370010000 }
$sequence_4hex{ 8bd9 55 56 8b8360010000 33ed 33f6 3bc5 }
$sequence_5hex{ 7538 8b442434 85c0 7430 8b4c242c 8b9370010000 51 }
$sequence_6hex{ 33c9 8d542408 894c2428 52 894c2430 }
$sequence_7hex{ 8bf8 ff15???????? 8b44240c 8b4804 8b10 51 }
$sequence_8hex{ e8???????? 53 55 8bac241c140000 }
$sequence_9hex{ 8d83e4000000 51 6a04 50 ff931c010000 3bc6 0f85a0010000 }

Condition

7 of them and filesize < 188416

In plain words (Heuristic)

  • The file must be smaller than 188416 (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: 8ca87078-8100-5bd1-8798-54d3e2b28ab6

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