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MALPEDIA_Win_Poslurp_Auto

autogenerated rule brought to you by yara-signator

MalwarePoslurpMalpedia 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: Poslurp.

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

Summary generated from the rule's metadata and condition.

Rule source

win-poslurp-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Poslurp_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "f57f3062-2d48-53bc-84d2-4f47478aeafc"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.poslurp"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.poslurp_auto.yar#L1-L120"
		license_url = "N/A"
		logic_hash = "1ce7d286bb932144dd320e4741b9f64328e3751d7a5f95794d81a78692d9adcd"
		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 = { 4156 4157 4883ec60 448bf2 4c8bf9 4c8be1 }
		$sequence_1 = { 488bc8 482bcd 48d1f9 83c1dc 83f93c }
		$sequence_2 = { 740e 0fb7d0 488bcd 41ffd5 488907 eb0e }
		$sequence_3 = { 498bf7 4c8be8 488bf8 33c0 f3aa 8bcd 498bfd }
		$sequence_4 = { 83f809 7709 ffc7 48ffc2 }
		$sequence_5 = { 48ffc2 32c1 8842ff 69c90d661900 81e96b1ef949 }
		$sequence_6 = { ff15???????? 4c8d4c2458 448bc5 488bd6 }
		$sequence_7 = { 488bfe 458bc4 498bd4 66f2af 4c8d2d45220000 48f7d1 4883e901 }
		$sequence_8 = { 418bc8 ffce 488bd5 2bcd 8bfb }
		$sequence_9 = { 57 4883ec20 48833d????????00 488bd9 751f 488b0d???????? ba08000000 }

	condition:
		7 of them and filesize < 50176
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 4156 4157 4883ec60 448bf2 4c8bf9 4c8be1 }
$sequence_1hex{ 488bc8 482bcd 48d1f9 83c1dc 83f93c }
$sequence_2hex{ 740e 0fb7d0 488bcd 41ffd5 488907 eb0e }
$sequence_3hex{ 498bf7 4c8be8 488bf8 33c0 f3aa 8bcd 498bfd }
$sequence_4hex{ 83f809 7709 ffc7 48ffc2 }
$sequence_5hex{ 48ffc2 32c1 8842ff 69c90d661900 81e96b1ef949 }
$sequence_6hex{ ff15???????? 4c8d4c2458 448bc5 488bd6 }
$sequence_7hex{ 488bfe 458bc4 498bd4 66f2af 4c8d2d45220000 48f7d1 4883e901 }
$sequence_8hex{ 418bc8 ffce 488bd5 2bcd 8bfb }
$sequence_9hex{ 57 4883ec20 48833d????????00 488bd9 751f 488b0d???????? ba08000000 }

Condition

7 of them and filesize < 50176

In plain words (Heuristic)

  • The file must be smaller than 50176 (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: f57f3062-2d48-53bc-84d2-4f47478aeafc

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