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MALPEDIA_Win_Ghost_Rat_Auto

autogenerated rule brought to you by yara-signator

MalwareGhost 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 / 73

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Ghost Rat.

It defines 34 patterns (0 text, 34 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-ghost-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Ghost_Rat_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "b3c0a496-a8e9-5e0a-81fc-8cfef4071d10"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.ghost_rat"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.ghost_rat_auto.yar#L1-L315"
		license_url = "N/A"
		logic_hash = "f6cde1e9a7a7c4d78a246882e7f130237b23653d10843e75f08c553708ae3734"
		score = 75
		quality = 73
		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 = { 6a01 56 ff15???????? 5e c20800 }
		$sequence_1 = { 8b400c 85c0 7505 a1???????? 50 8bce }
		$sequence_2 = { 8bd9 e8???????? 8b4d08 3bc8 }
		$sequence_3 = { 8be5 5d c20400 894df4 c745f800000000 }
		$sequence_4 = { c745f800000000 df6df4 83ec08 dc0d???????? dd1c24 ff15???????? 83c408 }
		$sequence_5 = { 6a6b 8bce e8???????? 5f 5e }
		$sequence_6 = { ff7628 ff15???????? 6a01 ff7620 ff15???????? 8b4e04 }
		$sequence_7 = { 6a00 6a00 c705????????20010000 e8???????? }
		$sequence_8 = { b302 50 51 c744242003000000 c744242400000000 }
		$sequence_9 = { e9???????? 8b4df0 83c154 e9???????? 8b4df0 83c17c e9???????? }
		$sequence_10 = { ff15???????? 85c0 7507 c745e401000000 834dfcff }
		$sequence_11 = { 68???????? 50 6802000080 e8???????? 83c41c 5f 5e }
		$sequence_12 = { 50 e8???????? 83c40c ff7508 6a40 ff15???????? }
		$sequence_13 = { 6a6f 8bce e8???????? 5e }
		$sequence_14 = { 6a00 52 ff15???????? 8b462c 68d0070000 }
		$sequence_15 = { e8???????? 8b8e549f0000 83c41c 89848e14030000 8b86549f0000 }
		$sequence_16 = { 8dbd85feffff f3ab 66ab aa }
		$sequence_17 = { ff7508 ff15???????? 40 50 ff15???????? }
		$sequence_18 = { ff15???????? 85c0 7506 46 83fe19 }
		$sequence_19 = { 6a00 e8???????? 8b96549f0000 83c41c 89849614030000 }
		$sequence_20 = { ff7620 ff15???????? 8b4e04 e8???????? 33c0 5e }
		$sequence_21 = { e8???????? 8d85c0feffff 50 57 ff15???????? 8bf8 83ffff }
		$sequence_22 = { 8bce ff75e8 e8???????? 8bce e8???????? 6a00 }
		$sequence_23 = { 6a00 6a00 e8???????? 8b8e549f0000 }
		$sequence_24 = { e9???????? 8d45dc 50 681f000200 }
		$sequence_25 = { 6a00 6a00 6838040000 6a00 }
		$sequence_26 = { 83e9fc c7014c696272 83e9fc c70161727941 }
		$sequence_27 = { 813f6b006500 7406 813f4b004500 75e8 }
		$sequence_28 = { 8b4608 8b7e20 8b36 813f6b006500 7406 }
		$sequence_29 = { 83ec14 8b4508 8b4d10 2b481c 894df8 8b5508 }
		$sequence_30 = { 8b9558ffffff 52 8b8560ffffff 50 ff9514ffffff 83c40c }
		$sequence_31 = { 7522 60 8b75dc 8b5e24 035df8 8b761c 0375f8 }
		$sequence_32 = { 85c0 7530 8b8d48ffffff 8b9560ffffff 03511c 8995f0feffff 8b8554ffffff }
		$sequence_33 = { 75d4 817f0865006c00 7407 817f0845004c00 }

	condition:
		7 of them and filesize < 357376
}

Strings (34 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 6a01 56 ff15???????? 5e c20800 }
$sequence_1hex{ 8b400c 85c0 7505 a1???????? 50 8bce }
$sequence_2hex{ 8bd9 e8???????? 8b4d08 3bc8 }
$sequence_3hex{ 8be5 5d c20400 894df4 c745f800000000 }
$sequence_4hex{ c745f800000000 df6df4 83ec08 dc0d???????? dd1c24 ff15???????? 83c408 }
$sequence_5hex{ 6a6b 8bce e8???????? 5f 5e }
$sequence_6hex{ ff7628 ff15???????? 6a01 ff7620 ff15???????? 8b4e04 }
$sequence_7hex{ 6a00 6a00 c705????????20010000 e8???????? }
$sequence_8hex{ b302 50 51 c744242003000000 c744242400000000 }
$sequence_9hex{ e9???????? 8b4df0 83c154 e9???????? 8b4df0 83c17c e9???????? }
$sequence_10hex{ ff15???????? 85c0 7507 c745e401000000 834dfcff }
$sequence_11hex{ 68???????? 50 6802000080 e8???????? 83c41c 5f 5e }
$sequence_12hex{ 50 e8???????? 83c40c ff7508 6a40 ff15???????? }
$sequence_13hex{ 6a6f 8bce e8???????? 5e }
$sequence_14hex{ 6a00 52 ff15???????? 8b462c 68d0070000 }
$sequence_15hex{ e8???????? 8b8e549f0000 83c41c 89848e14030000 8b86549f0000 }
$sequence_16hex{ 8dbd85feffff f3ab 66ab aa }
$sequence_17hex{ ff7508 ff15???????? 40 50 ff15???????? }
$sequence_18hex{ ff15???????? 85c0 7506 46 83fe19 }
$sequence_19hex{ 6a00 e8???????? 8b96549f0000 83c41c 89849614030000 }
$sequence_20hex{ ff7620 ff15???????? 8b4e04 e8???????? 33c0 5e }
$sequence_21hex{ e8???????? 8d85c0feffff 50 57 ff15???????? 8bf8 83ffff }
$sequence_22hex{ 8bce ff75e8 e8???????? 8bce e8???????? 6a00 }
$sequence_23hex{ 6a00 6a00 e8???????? 8b8e549f0000 }
$sequence_24hex{ e9???????? 8d45dc 50 681f000200 }
$sequence_25hex{ 6a00 6a00 6838040000 6a00 }
$sequence_26hex{ 83e9fc c7014c696272 83e9fc c70161727941 }
$sequence_27hex{ 813f6b006500 7406 813f4b004500 75e8 }
$sequence_28hex{ 8b4608 8b7e20 8b36 813f6b006500 7406 }
$sequence_29hex{ 83ec14 8b4508 8b4d10 2b481c 894df8 8b5508 }
$sequence_30hex{ 8b9558ffffff 52 8b8560ffffff 50 ff9514ffffff 83c40c }
$sequence_31hex{ 7522 60 8b75dc 8b5e24 035df8 8b761c 0375f8 }
$sequence_32hex{ 85c0 7530 8b8d48ffffff 8b9560ffffff 03511c 8995f0feffff 8b8554ffffff }
$sequence_33hex{ 75d4 817f0865006c00 7407 817f0845004c00 }

Condition

7 of them and filesize < 357376

In plain words (Heuristic)

  • The file must be smaller than 357376 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

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: b3c0a496-a8e9-5e0a-81fc-8cfef4071d10

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