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MALPEDIA_Win_Applejeus_Auto

autogenerated rule brought to you by yara-signator

MalwareApplejeusMalpedia 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: Applejeus.

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

Summary generated from the rule's metadata and condition.

Rule source

win-applejeus-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Applejeus_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "8bd8cf4a-706a-51e1-a3a4-39313e63d490"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.applejeus"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.applejeus_auto.yar#L1-L133"
		license_url = "N/A"
		logic_hash = "9ddf6ec9baeb6448a804b5c4ce2b51ba1d2b3520b576f13a64f77cc06fd9f75f"
		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 = { 0f84f2000000 8b07 0f57c0 8b4f08 8b570c 894594 8b4704 }
		$sequence_1 = { 8b0f 8901 ffd6 8b4f04 0f57c0 660fd645e0 c745e000000000 }
		$sequence_2 = { ffd0 84c0 7406 8b06 8bce eb04 }
		$sequence_3 = { 8b4e08 81f2490f0000 c745fcd5030000 81f289060000 8b01 0345fc 8901 }
		$sequence_4 = { e9???????? 8d8de4ecffff e9???????? 8d8df8eeffff e9???????? 8d8d3cefffff e9???????? }
		$sequence_5 = { 6a08 0f118560eeffff c78590efffff00000000 8b7008 8b7804 660fd68580efffff c78594efffff00000000 }
		$sequence_6 = { 5e 8b0a 8908 c70200000000 5d c3 83f802 }
		$sequence_7 = { 8b7e04 894604 8b45e8 8906 c745fc00000000 85ff 7421 }
		$sequence_8 = { c68548ffffff1b c68549ffffff3e c6854affffff2b c6854bffffff3e c6854cffffff03 c6854dffffff13 c6854effffff30 }
		$sequence_9 = { 8d8dc0feffff e9???????? 8d8dc4feffff e9???????? 8d8dc8feffff e9???????? 8d8dc0feffff }

	condition:
		7 of them and filesize < 1245184
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 0f84f2000000 8b07 0f57c0 8b4f08 8b570c 894594 8b4704 }
$sequence_1hex{ 8b0f 8901 ffd6 8b4f04 0f57c0 660fd645e0 c745e000000000 }
$sequence_2hex{ ffd0 84c0 7406 8b06 8bce eb04 }
$sequence_3hex{ 8b4e08 81f2490f0000 c745fcd5030000 81f289060000 8b01 0345fc 8901 }
$sequence_4hex{ e9???????? 8d8de4ecffff e9???????? 8d8df8eeffff e9???????? 8d8d3cefffff e9???????? }
$sequence_5hex{ 6a08 0f118560eeffff c78590efffff00000000 8b7008 8b7804 660fd68580efffff c78594efffff00000000 }
$sequence_6hex{ 5e 8b0a 8908 c70200000000 5d c3 83f802 }
$sequence_7hex{ 8b7e04 894604 8b45e8 8906 c745fc00000000 85ff 7421 }
$sequence_8hex{ c68548ffffff1b c68549ffffff3e c6854affffff2b c6854bffffff3e c6854cffffff03 c6854dffffff13 c6854effffff30 }
$sequence_9hex{ 8d8dc0feffff e9???????? 8d8dc4feffff e9???????? 8d8dc8feffff e9???????? 8d8dc0feffff }

Condition

7 of them and filesize < 1245184

In plain words (Heuristic)

  • The file must be smaller than 1245184 (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: 8bd8cf4a-706a-51e1-a3a4-39313e63d490

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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