Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Rover_Auto

autogenerated rule brought to you by yara-signator

MalwareRoverMalpedia 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: Rover.

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

Summary generated from the rule's metadata and condition.

Rule source

win-rover-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rover_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "a94fb808-7e56-5492-98ac-632fdf016e39"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.rover"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rover_auto.yar#L1-L129"
		license_url = "N/A"
		logic_hash = "a753dd562e4da41a9541695181d1e9b32b384eb5d0fad8b4827765d59d5a523e"
		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 = { 8b85ec030000 51 8d9570020000 52 89859c020000 e8???????? 83c408 }
		$sequence_1 = { 8b750c 68???????? e8???????? 83c404 85c0 }
		$sequence_2 = { e8???????? 83c408 83ff27 770f 8b04bd585f4400 50 68???????? }
		$sequence_3 = { 53 8b5c2408 8915???????? 8b15???????? }
		$sequence_4 = { 52 ff15???????? 8bf0 83c408 85f6 7404 c60600 }
		$sequence_5 = { 8bc3 e8???????? 89442420 33c0 89442414 8d9b00000000 8b542420 }
		$sequence_6 = { 85ed 0f8422010000 807d0000 0f8418010000 55 68???????? e8???????? }
		$sequence_7 = { 8b4c241c 51 ff15???????? 83c404 8bc6 e9???????? 8b542410 }
		$sequence_8 = { 894708 85c0 75d9 5d 5b 5f b81b000000 }
		$sequence_9 = { 8bd5 2bd0 52 50 8b442418 50 ff15???????? }

	condition:
		7 of them and filesize < 704512
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8b85ec030000 51 8d9570020000 52 89859c020000 e8???????? 83c408 }
$sequence_1hex{ 8b750c 68???????? e8???????? 83c404 85c0 }
$sequence_2hex{ e8???????? 83c408 83ff27 770f 8b04bd585f4400 50 68???????? }
$sequence_3hex{ 53 8b5c2408 8915???????? 8b15???????? }
$sequence_4hex{ 52 ff15???????? 8bf0 83c408 85f6 7404 c60600 }
$sequence_5hex{ 8bc3 e8???????? 89442420 33c0 89442414 8d9b00000000 8b542420 }
$sequence_6hex{ 85ed 0f8422010000 807d0000 0f8418010000 55 68???????? e8???????? }
$sequence_7hex{ 8b4c241c 51 ff15???????? 83c404 8bc6 e9???????? 8b542410 }
$sequence_8hex{ 894708 85c0 75d9 5d 5b 5f b81b000000 }
$sequence_9hex{ 8bd5 2bd0 52 50 8b442418 50 ff15???????? }

Condition

7 of them and filesize < 704512

In plain words (Heuristic)

  • The file must be smaller than 704512 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.

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: a94fb808-7e56-5492-98ac-632fdf016e39

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