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MALPEDIA_Win_Seasalt_Auto

autogenerated rule brought to you by yara-signator

MalwareSeasaltMalpedia 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: Seasalt.

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

Summary generated from the rule's metadata and condition.

Rule source

win-seasalt-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Seasalt_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "53347621-44c1-525f-89d0-f50b729b9b9d"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.seasalt"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.seasalt_auto.yar#L1-L121"
		license_url = "N/A"
		logic_hash = "efb41d41f20a6c99bb3444a374f65b02c8e63a28ca4361b924bf5bfe71fe1970"
		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 = { 8d842474010000 6804020000 50 51 ffd5 }
		$sequence_1 = { f7d1 2bf9 8d9578fcffff 8bc1 8bf7 8bfa 8d9578fdffff }
		$sequence_2 = { eb26 8d4508 8db67ccb0010 6a00 50 ff36 }
		$sequence_3 = { 33c0 53 57 8a1c10 }
		$sequence_4 = { 81ec90010000 8d442400 50 6801010000 ff15???????? f7d8 1bc0 }
		$sequence_5 = { 6a00 8d55e8 6a08 52 50 ffd3 8d4de0 }
		$sequence_6 = { 8d8c247c010000 6880000000 51 ff15???????? b981000000 }
		$sequence_7 = { 83f964 7d08 8a4301 43 3c2f 75eb }
		$sequence_8 = { a1???????? 53 53 68???????? 8d942484000000 6800020000 }
		$sequence_9 = { 51 ff15???????? 8d542412 52 }

	condition:
		7 of them and filesize < 139264
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8d842474010000 6804020000 50 51 ffd5 }
$sequence_1hex{ f7d1 2bf9 8d9578fcffff 8bc1 8bf7 8bfa 8d9578fdffff }
$sequence_2hex{ eb26 8d4508 8db67ccb0010 6a00 50 ff36 }
$sequence_3hex{ 33c0 53 57 8a1c10 }
$sequence_4hex{ 81ec90010000 8d442400 50 6801010000 ff15???????? f7d8 1bc0 }
$sequence_5hex{ 6a00 8d55e8 6a08 52 50 ffd3 8d4de0 }
$sequence_6hex{ 8d8c247c010000 6880000000 51 ff15???????? b981000000 }
$sequence_7hex{ 83f964 7d08 8a4301 43 3c2f 75eb }
$sequence_8hex{ a1???????? 53 53 68???????? 8d942484000000 6800020000 }
$sequence_9hex{ 51 ff15???????? 8d542412 52 }

Condition

7 of them and filesize < 139264

In plain words (Heuristic)

  • The file must be smaller than 139264 (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: 53347621-44c1-525f-89d0-f50b729b9b9d

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