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MALPEDIA_Win_Alma_Communicator_Auto

autogenerated rule brought to you by yara-signator

MalwareAlma CommunicatorMalpedia 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: Alma Communicator.

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

Summary generated from the rule's metadata and condition.

Rule source

win-alma-communicator-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Alma_Communicator_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "e0607ab0-e028-562f-b77f-2038f0a1c937"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.alma_communicator"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.alma_communicator_auto.yar#L1-L122"
		license_url = "N/A"
		logic_hash = "5eee702f26a54fc3007f4241649cfd89cd5c3cb8c31d6c53abbfeff285d3b0b2"
		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 = { 8b0c95f08f4100 8844192e 8b0495f08f4100 804c182d04 ff4604 }
		$sequence_1 = { 6685c0 75e8 8d8d6cfbffff 03ca 668b4102 }
		$sequence_2 = { 8d55f4 e8???????? 8b45f4 8b4dec 890473 }
		$sequence_3 = { 6689840d58fbffff 03cf 6685c0 75e9 8d8d58fbffff 83e902 }
		$sequence_4 = { ffd3 85c0 745f 8d85f0fdffff 50 6819010200 6a00 }
		$sequence_5 = { 5b 8be5 5d c3 8a55ff ebc0 }
		$sequence_6 = { ff15???????? 85c0 7414 ff35???????? ff15???????? }
		$sequence_7 = { 8d55e0 2bd1 8a01 88040a 41 84c0 75f6 }
		$sequence_8 = { eb17 81fa00010000 7313 8a8714814100 08441619 42 }
		$sequence_9 = { 8bfe 85c0 741e 0fb70c79 8d55f4 e8???????? }

	condition:
		7 of them and filesize < 245760
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8b0c95f08f4100 8844192e 8b0495f08f4100 804c182d04 ff4604 }
$sequence_1hex{ 6685c0 75e8 8d8d6cfbffff 03ca 668b4102 }
$sequence_2hex{ 8d55f4 e8???????? 8b45f4 8b4dec 890473 }
$sequence_3hex{ 6689840d58fbffff 03cf 6685c0 75e9 8d8d58fbffff 83e902 }
$sequence_4hex{ ffd3 85c0 745f 8d85f0fdffff 50 6819010200 6a00 }
$sequence_5hex{ 5b 8be5 5d c3 8a55ff ebc0 }
$sequence_6hex{ ff15???????? 85c0 7414 ff35???????? ff15???????? }
$sequence_7hex{ 8d55e0 2bd1 8a01 88040a 41 84c0 75f6 }
$sequence_8hex{ eb17 81fa00010000 7313 8a8714814100 08441619 42 }
$sequence_9hex{ 8bfe 85c0 741e 0fb70c79 8d55f4 e8???????? }

Condition

7 of them and filesize < 245760

In plain words (Heuristic)

  • The file must be smaller than 245760 (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: e0607ab0-e028-562f-b77f-2038f0a1c937

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