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MALPEDIA_Win_Poison_Rat_Auto

autogenerated rule brought to you by yara-signator

MalwarePoison RatMalpedia 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: Poison Rat.

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

Summary generated from the rule's metadata and condition.

Rule source

win-poison-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Poison_Rat_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "7c6f2ea3-14d0-5bd3-b5de-002b01a6e4ac"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.poison_rat"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.poison_rat_auto.yar#L1-L113"
		license_url = "N/A"
		logic_hash = "3e3b3a6380a6de226db390b398cafc3338e9d953c2f6c73b523494bf22932b99"
		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 = { f3ab 6810270000 8d8dc4d5ffff 6a01 }
		$sequence_1 = { 83e61f 8b048580c54000 8b04f0 83f8ff }
		$sequence_2 = { 33f3 8bf9 8930 8bf1 c1ef10 c1e908 }
		$sequence_3 = { 33d7 8b7c2414 c1ef18 8b3cbd30984000 }
		$sequence_4 = { 8ac8 80c120 888840b34000 eb1f 83f861 }
		$sequence_5 = { 8bd3 c1ea18 c1ed10 8b149530984000 }
		$sequence_6 = { 331c9530984000 8bd7 81e2ff000000 331c9530a44000 8b10 }
		$sequence_7 = { 8bd9 c1eb18 895c2420 8bdf 8b7c2420 c1eb10 }
		$sequence_8 = { 8a6e08 8a4e09 c1e108 0bca 33d2 8a560b }
		$sequence_9 = { 330c9530a04000 8bd5 81e2ff000000 81e3ff000000 c1ed18 }

	condition:
		7 of them and filesize < 101688
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ f3ab 6810270000 8d8dc4d5ffff 6a01 }
$sequence_1hex{ 83e61f 8b048580c54000 8b04f0 83f8ff }
$sequence_2hex{ 33f3 8bf9 8930 8bf1 c1ef10 c1e908 }
$sequence_3hex{ 33d7 8b7c2414 c1ef18 8b3cbd30984000 }
$sequence_4hex{ 8ac8 80c120 888840b34000 eb1f 83f861 }
$sequence_5hex{ 8bd3 c1ea18 c1ed10 8b149530984000 }
$sequence_6hex{ 331c9530984000 8bd7 81e2ff000000 331c9530a44000 8b10 }
$sequence_7hex{ 8bd9 c1eb18 895c2420 8bdf 8b7c2420 c1eb10 }
$sequence_8hex{ 8a6e08 8a4e09 c1e108 0bca 33d2 8a560b }
$sequence_9hex{ 330c9530a04000 8bd5 81e2ff000000 81e3ff000000 c1ed18 }

Condition

7 of them and filesize < 101688

In plain words (Heuristic)

  • The file must be smaller than 101688 (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: 7c6f2ea3-14d0-5bd3-b5de-002b01a6e4ac

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