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MALPEDIA_Win_Slimagent_Auto

autogenerated rule brought to you by yara-signator

MalwareSlimagentMalpedia 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: Slimagent.

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

Summary generated from the rule's metadata and condition.

Rule source

win-slimagent-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Slimagent_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "99a5dbc6-3135-5e93-aab6-9b79abe889ca"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.slimagent"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.slimagent_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "f50f752fc0d7d8f3f01b7dc9b2a072e61b78695da29a813e76e8d4486d4da2ea"
		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 = { 458b949b14350400 eb08 458b949bdc340400 41ffc2 448d46ff bf1f85eb51 }
		$sequence_1 = { e8???????? 488d4df8 e8???????? 488d1543720200 488d4df8 e8???????? cc }
		$sequence_2 = { e8???????? cc 488d4c2438 e8???????? 488d15bbc20200 488d4c2438 e8???????? }
		$sequence_3 = { 488b4f10 48894daf 498bc5 482bc2 483bc1 0f82f3030000 49837f1808 }
		$sequence_4 = { 0f85e3000000 4d3bc1 0f84d0000000 8b7500 498b9cf7e0550500 4885db 740b }
		$sequence_5 = { 8bd7 4c8bf7 498b84c3b05c0500 4e8d0cfd3e000000 4c03c8 498bc1 403838 }
		$sequence_6 = { 498bd9 498bf8 8bf2 4c8d0d99020100 488be9 4c8d0587020100 488d1588020100 }
		$sequence_7 = { 488b4c2460 ff15???????? 488b4dc0 ff15???????? 0f1045a0 }
		$sequence_8 = { 4885db 740b 493bde 0f8599000000 eb6b 4d8bbcf788130400 33d2 }
		$sequence_9 = { ff15???????? 488bc8 488d15202c0300 ff15???????? 488bf0 4885c0 745c }

	condition:
		7 of them and filesize < 769024
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 458b949b14350400 eb08 458b949bdc340400 41ffc2 448d46ff bf1f85eb51 }
$sequence_1hex{ e8???????? 488d4df8 e8???????? 488d1543720200 488d4df8 e8???????? cc }
$sequence_2hex{ e8???????? cc 488d4c2438 e8???????? 488d15bbc20200 488d4c2438 e8???????? }
$sequence_3hex{ 488b4f10 48894daf 498bc5 482bc2 483bc1 0f82f3030000 49837f1808 }
$sequence_4hex{ 0f85e3000000 4d3bc1 0f84d0000000 8b7500 498b9cf7e0550500 4885db 740b }
$sequence_5hex{ 8bd7 4c8bf7 498b84c3b05c0500 4e8d0cfd3e000000 4c03c8 498bc1 403838 }
$sequence_6hex{ 498bd9 498bf8 8bf2 4c8d0d99020100 488be9 4c8d0587020100 488d1588020100 }
$sequence_7hex{ 488b4c2460 ff15???????? 488b4dc0 ff15???????? 0f1045a0 }
$sequence_8hex{ 4885db 740b 493bde 0f8599000000 eb6b 4d8bbcf788130400 33d2 }
$sequence_9hex{ ff15???????? 488bc8 488d15202c0300 ff15???????? 488bf0 4885c0 745c }

Condition

7 of them and filesize < 769024

In plain words (Heuristic)

  • The file must be smaller than 769024 (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: 99a5dbc6-3135-5e93-aab6-9b79abe889ca

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