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MALPEDIA_Win_Troll_Stealer_Auto

autogenerated rule brought to you by yara-signator

MalwareTroll StealerMalpedia 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: Troll Stealer.

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

Summary generated from the rule's metadata and condition.

Rule source

win-troll-stealer-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Troll_Stealer_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "67042aa4-f987-59a8-b96f-b4f01d92e092"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.troll_stealer"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.troll_stealer_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "3be2ef26e31631418580720590e6e7731c9fbf927b6cd6fe13353bb3ad220d21"
		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 = { 0fca 4084d7 453ad6 81f22940ac2d f7d2 f8 41f6c0a2 }
		$sequence_1 = { 410fcb 99 410f90c0 48c1c992 41c1c303 66440f4ecc f6d0 }
		$sequence_2 = { 53 f9 d3c3 d2cf 310c24 66d3c3 5b }
		$sequence_3 = { fecb 6681ebec79 310c24 66440fbbc3 0fbfdd 5b 4863c9 }
		$sequence_4 = { f8 f5 d1cd 6641f7c77652 664181fef414 f8 4150 }
		$sequence_5 = { 3adf 4184c1 f9 4153 490fbae3a3 4d0f4fdd 310c24 }
		$sequence_6 = { c0f328 0adc 410fbfdd 80f18c 80e954 48c1dba3 f6d9 }
		$sequence_7 = { d1c8 f9 4084e0 4151 490fbaf94d 310424 }
		$sequence_8 = { 40f6c49f 81c11f68a01e f8 f7d1 f8 0fc9 }
		$sequence_9 = { 4963fe 311c24 40c0e73d 40d2ef 5f f8 }

	condition:
		7 of them and filesize < 45868032
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 0fca 4084d7 453ad6 81f22940ac2d f7d2 f8 41f6c0a2 }
$sequence_1hex{ 410fcb 99 410f90c0 48c1c992 41c1c303 66440f4ecc f6d0 }
$sequence_2hex{ 53 f9 d3c3 d2cf 310c24 66d3c3 5b }
$sequence_3hex{ fecb 6681ebec79 310c24 66440fbbc3 0fbfdd 5b 4863c9 }
$sequence_4hex{ f8 f5 d1cd 6641f7c77652 664181fef414 f8 4150 }
$sequence_5hex{ 3adf 4184c1 f9 4153 490fbae3a3 4d0f4fdd 310c24 }
$sequence_6hex{ c0f328 0adc 410fbfdd 80f18c 80e954 48c1dba3 f6d9 }
$sequence_7hex{ d1c8 f9 4084e0 4151 490fbaf94d 310424 }
$sequence_8hex{ 40f6c49f 81c11f68a01e f8 f7d1 f8 0fc9 }
$sequence_9hex{ 4963fe 311c24 40c0e73d 40d2ef 5f f8 }

Condition

7 of them and filesize < 45868032

In plain words (Heuristic)

  • The file must be smaller than 45868032 (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: 67042aa4-f987-59a8-b96f-b4f01d92e092

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