Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Terminator_Rat_Auto

autogenerated rule brought to you by yara-signator

MalwareTerminator RatMalpedia 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: Terminator Rat.

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

Summary generated from the rule's metadata and condition.

Rule source

win-terminator-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Terminator_Rat_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "7a158d8c-c6d9-5c92-856a-16a73f404791"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.terminator_rat"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.terminator_rat_auto.yar#L1-L114"
		license_url = "N/A"
		logic_hash = "c9b1255fac643df0e5cda4fb80908f3bb02eb08ddb6ad96fab0d1632d61ced3c"
		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 = { c7450400000000 8be8 eb06 50 }
		$sequence_1 = { 56 ff7708 e8???????? 8bc6 eb03 }
		$sequence_2 = { 395e0c 752f 6a40 6800100000 }
		$sequence_3 = { 8b743578 03f5 56 8b7620 03f5 }
		$sequence_4 = { 50 e8???????? 83f8ff 750a c7852901000001000000 81c400040000 }
		$sequence_5 = { ff5539 81c490010000 c3 c20400 57 8bfc 81ec04040000 }
		$sequence_6 = { bee0030000 8d8720fcffff 56 50 }
		$sequence_7 = { e8???????? 8b852d010000 b9f8030000 c70020000000 8b852d010000 2b08 }
		$sequence_8 = { c3 57 8bfc 81ec00040000 8d8700fcffff }
		$sequence_9 = { 33c0 50 ff5539 56 }

	condition:
		7 of them and filesize < 8192
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ c7450400000000 8be8 eb06 50 }
$sequence_1hex{ 56 ff7708 e8???????? 8bc6 eb03 }
$sequence_2hex{ 395e0c 752f 6a40 6800100000 }
$sequence_3hex{ 8b743578 03f5 56 8b7620 03f5 }
$sequence_4hex{ 50 e8???????? 83f8ff 750a c7852901000001000000 81c400040000 }
$sequence_5hex{ ff5539 81c490010000 c3 c20400 57 8bfc 81ec04040000 }
$sequence_6hex{ bee0030000 8d8720fcffff 56 50 }
$sequence_7hex{ e8???????? 8b852d010000 b9f8030000 c70020000000 8b852d010000 2b08 }
$sequence_8hex{ c3 57 8bfc 81ec00040000 8d8700fcffff }
$sequence_9hex{ 33c0 50 ff5539 56 }

Condition

7 of them and filesize < 8192

In plain words (Heuristic)

  • The file must be smaller than 8192 (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: 7a158d8c-c6d9-5c92-856a-16a73f404791

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