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MALPEDIA_Win_Komprogo_Auto

autogenerated rule brought to you by yara-signator

MalwareKomprogoMalpedia 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: Komprogo.

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

Summary generated from the rule's metadata and condition.

Rule source

win-komprogo-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Komprogo_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "bdd9ee80-44ed-59fa-81f7-566a28a23a0f"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.komprogo"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.komprogo_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "29eccd352001ee2f12ca67ab71a52496adf722d1d26763c656f76672b863d7d6"
		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 = { 83c404 84c0 7451 8d8e48720300 51 8d86d2cf0300 8bcf }
		$sequence_1 = { 898e73450300 8996e7410100 8d8ef4380400 898eed410100 8d8e60f10300 898e30a30300 8d96ccb80300 }
		$sequence_2 = { 8d96d8be0300 899644bf0300 8d8628bf0300 89864cbf0300 8d96606a0300 89966cbf0300 }
		$sequence_3 = { 8986ef470000 8d8e90160400 898eab3e0200 89be389c0000 8d8e58700300 898e93480000 8d8e90e90300 }
		$sequence_4 = { 8986e0d20100 8d86e15c0300 8986c6c70000 8d8eab880100 898ee8d20100 8d9683bd0100 }
		$sequence_5 = { 89861cb60300 8d8e28640300 898ed4b50300 8d9610780300 899624e80300 8d86e4970300 8986a5080100 }
		$sequence_6 = { 8986f8bc0200 8d8e57540300 8d86e0710300 898e78c50300 8b4df0 50 b809000000 }
		$sequence_7 = { 898605090100 8d8ef85b0300 898e76ae0000 8d9694160400 8996d9d20000 8d8628700300 8986b6ae0000 }
		$sequence_8 = { 8d86e0a50300 898666cc0200 8d866c770300 898658e80300 8d868c720300 50 b812000000 }
		$sequence_9 = { 8d8ea8970300 898e5f510100 8d8e50720300 89be504b0300 898ea94d0000 8d8ef0380400 }

	condition:
		7 of them and filesize < 1045504
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 83c404 84c0 7451 8d8e48720300 51 8d86d2cf0300 8bcf }
$sequence_1hex{ 898e73450300 8996e7410100 8d8ef4380400 898eed410100 8d8e60f10300 898e30a30300 8d96ccb80300 }
$sequence_2hex{ 8d96d8be0300 899644bf0300 8d8628bf0300 89864cbf0300 8d96606a0300 89966cbf0300 }
$sequence_3hex{ 8986ef470000 8d8e90160400 898eab3e0200 89be389c0000 8d8e58700300 898e93480000 8d8e90e90300 }
$sequence_4hex{ 8986e0d20100 8d86e15c0300 8986c6c70000 8d8eab880100 898ee8d20100 8d9683bd0100 }
$sequence_5hex{ 89861cb60300 8d8e28640300 898ed4b50300 8d9610780300 899624e80300 8d86e4970300 8986a5080100 }
$sequence_6hex{ 8986f8bc0200 8d8e57540300 8d86e0710300 898e78c50300 8b4df0 50 b809000000 }
$sequence_7hex{ 898605090100 8d8ef85b0300 898e76ae0000 8d9694160400 8996d9d20000 8d8628700300 8986b6ae0000 }
$sequence_8hex{ 8d86e0a50300 898666cc0200 8d866c770300 898658e80300 8d868c720300 50 b812000000 }
$sequence_9hex{ 8d8ea8970300 898e5f510100 8d8e50720300 89be504b0300 898ea94d0000 8d8ef0380400 }

Condition

7 of them and filesize < 1045504

In plain words (Heuristic)

  • The file must be smaller than 1045504 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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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: bdd9ee80-44ed-59fa-81f7-566a28a23a0f

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