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MALPEDIA_Win_Rarog_Auto

autogenerated rule brought to you by yara-signator

MalwareRarogMalpedia 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: Rarog.

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

Summary generated from the rule's metadata and condition.

Rule source

win-rarog-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rarog_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "e020263d-ee7c-5d98-8049-179a71cab21f"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.rarog"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rarog_auto.yar#L1-L127"
		license_url = "N/A"
		logic_hash = "6d71ef483d3bf9549ac5f129736d3e4e238e402d10434b4694a95dd62d034597"
		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 = { 8d8d24feffff e8???????? 6860ea0000 ff15???????? 33f6 }
		$sequence_1 = { 8b450c e8???????? 8bf0 8b4508 e8???????? 8b4508 5e }
		$sequence_2 = { e8???????? 33db 8bf9 895dec 895dfc c645fc01 }
		$sequence_3 = { 8d42e0 3c58 770f 0fbec2 0fb68000a54200 83e00f eb02 }
		$sequence_4 = { 6a30 51 50 53 ffd6 68???????? }
		$sequence_5 = { c1f805 8bcf 83e11f c1e106 8b0485203b4300 c644080401 57 }
		$sequence_6 = { 6a09 bf???????? 59 33c0 f3a6 7519 }
		$sequence_7 = { 59 33c0 f3a6 753e 891d???????? eb36 8bf0 }
		$sequence_8 = { c645fc10 8bcc 89a568fbffff 897114 895910 }
		$sequence_9 = { e8???????? 53 56 8d8dd8fcffff e8???????? 53 56 }

	condition:
		7 of them and filesize < 598016
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8d8d24feffff e8???????? 6860ea0000 ff15???????? 33f6 }
$sequence_1hex{ 8b450c e8???????? 8bf0 8b4508 e8???????? 8b4508 5e }
$sequence_2hex{ e8???????? 33db 8bf9 895dec 895dfc c645fc01 }
$sequence_3hex{ 8d42e0 3c58 770f 0fbec2 0fb68000a54200 83e00f eb02 }
$sequence_4hex{ 6a30 51 50 53 ffd6 68???????? }
$sequence_5hex{ c1f805 8bcf 83e11f c1e106 8b0485203b4300 c644080401 57 }
$sequence_6hex{ 6a09 bf???????? 59 33c0 f3a6 7519 }
$sequence_7hex{ 59 33c0 f3a6 753e 891d???????? eb36 8bf0 }
$sequence_8hex{ c645fc10 8bcc 89a568fbffff 897114 895910 }
$sequence_9hex{ e8???????? 53 56 8d8dd8fcffff e8???????? 53 56 }

Condition

7 of them and filesize < 598016

In plain words (Heuristic)

  • The file must be smaller than 598016 (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: e020263d-ee7c-5d98-8049-179a71cab21f

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