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MALPEDIA_Win_Jackpos_Auto

autogenerated rule brought to you by yara-signator

MalwareJackposMalpedia 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: Jackpos.

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

Summary generated from the rule's metadata and condition.

Rule source

win-jackpos-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Jackpos_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "51d29ba6-64fb-55ed-a0ec-0843caf32e88"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.jackpos"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.jackpos_auto.yar#L1-L125"
		license_url = "N/A"
		logic_hash = "7c74d663791b3468974253228471fae6d65fa0f9057ebf1fa30ad119e09d7b20"
		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???????? 83c404 50 33ff 57 6800001000 }
		$sequence_1 = { 0fbe4d0c 8b5508 53 51 }
		$sequence_2 = { 8d75d0 e9???????? 8d75b4 e9???????? 8db57cffffff e9???????? 8d4d98 }
		$sequence_3 = { 85c0 7408 8d4804 e8???????? 8b4df4 64890d00000000 59 }
		$sequence_4 = { 8938 8b5620 c70200000000 8b4630 d1ff }
		$sequence_5 = { e8???????? 68???????? 8d542408 52 c744240c24c74100 e8???????? f6c102 }
		$sequence_6 = { 1bc0 83e0fe 40 85c0 751a b803000000 3bf8 }
		$sequence_7 = { 3975d0 720c 8b4dbc 51 e8???????? 83c404 8bc7 }
		$sequence_8 = { c786d0000000e0aa4100 c786ac00000001000000 33c0 8b4dfc 5f 5e }
		$sequence_9 = { 037214 ebc4 5f 5e 5d }

	condition:
		7 of them and filesize < 319488
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ e8???????? 83c404 50 33ff 57 6800001000 }
$sequence_1hex{ 0fbe4d0c 8b5508 53 51 }
$sequence_2hex{ 8d75d0 e9???????? 8d75b4 e9???????? 8db57cffffff e9???????? 8d4d98 }
$sequence_3hex{ 85c0 7408 8d4804 e8???????? 8b4df4 64890d00000000 59 }
$sequence_4hex{ 8938 8b5620 c70200000000 8b4630 d1ff }
$sequence_5hex{ e8???????? 68???????? 8d542408 52 c744240c24c74100 e8???????? f6c102 }
$sequence_6hex{ 1bc0 83e0fe 40 85c0 751a b803000000 3bf8 }
$sequence_7hex{ 3975d0 720c 8b4dbc 51 e8???????? 83c404 8bc7 }
$sequence_8hex{ c786d0000000e0aa4100 c786ac00000001000000 33c0 8b4dfc 5f 5e }
$sequence_9hex{ 037214 ebc4 5f 5e 5d }

Condition

7 of them and filesize < 319488

In plain words (Heuristic)

  • The file must be smaller than 319488 (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: 51d29ba6-64fb-55ed-a0ec-0843caf32e88

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