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MALPEDIA_Win_Caddywiper_Auto

autogenerated rule brought to you by yara-signator

MalwareCaddywiperMalpedia 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: Caddywiper.

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

Summary generated from the rule's metadata and condition.

Rule source

win-caddywiper-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Caddywiper_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "6677fb29-cab7-5b91-9b6c-e9538ff26629"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.caddywiper"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.caddywiper_auto.yar#L1-L117"
		license_url = "N/A"
		logic_hash = "f72c2b5fbf59fc10e75c55723cb0482ba916adf699a13f2e8516e7fe103cb994"
		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 = { c685befbffff6c c685bffbffff00 c685c0fbffff33 c685c1fbffff00 c685c2fbffff32 }
		$sequence_1 = { 6a00 6a03 68000000c0 8b95f4f7ffff 52 ff95fcf7ffff 8945fc }
		$sequence_2 = { 8d8d00f8ffff 51 8d55dc 52 e8???????? 83c408 }
		$sequence_3 = { c645df54 c645e06f c645e16b c645e265 c645e36e }
		$sequence_4 = { 898568ffffff c78548ffffff00000000 c685acfeffff53 c685adfeffff65 }
		$sequence_5 = { 52 ff55b0 85c0 7504 }
		$sequence_6 = { c6459e5c c6459f00 c645a050 c645a100 c645a248 }
		$sequence_7 = { 6a00 6a00 6880070000 8d8d10f8ffff }
		$sequence_8 = { c68543ffffff00 8d8d38ffffff 51 8d55b8 52 e8???????? 83c408 }
		$sequence_9 = { 83c40c 8d8524f2ffff 50 8d8d38f3ffff 51 8d95d0fbffff }

	condition:
		7 of them and filesize < 33792
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ c685befbffff6c c685bffbffff00 c685c0fbffff33 c685c1fbffff00 c685c2fbffff32 }
$sequence_1hex{ 6a00 6a03 68000000c0 8b95f4f7ffff 52 ff95fcf7ffff 8945fc }
$sequence_2hex{ 8d8d00f8ffff 51 8d55dc 52 e8???????? 83c408 }
$sequence_3hex{ c645df54 c645e06f c645e16b c645e265 c645e36e }
$sequence_4hex{ 898568ffffff c78548ffffff00000000 c685acfeffff53 c685adfeffff65 }
$sequence_5hex{ 52 ff55b0 85c0 7504 }
$sequence_6hex{ c6459e5c c6459f00 c645a050 c645a100 c645a248 }
$sequence_7hex{ 6a00 6a00 6880070000 8d8d10f8ffff }
$sequence_8hex{ c68543ffffff00 8d8d38ffffff 51 8d55b8 52 e8???????? 83c408 }
$sequence_9hex{ 83c40c 8d8524f2ffff 50 8d8d38f3ffff 51 8d95d0fbffff }

Condition

7 of them and filesize < 33792

In plain words (Heuristic)

  • The file must be smaller than 33792 (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: 6677fb29-cab7-5b91-9b6c-e9538ff26629

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

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